{"id":1875,"date":"2026-04-01T15:52:34","date_gmt":"2026-04-01T07:52:34","guid":{"rendered":"https:\/\/eve2333.top\/?p=1875"},"modified":"2026-04-01T15:52:35","modified_gmt":"2026-04-01T07:52:35","slug":"%e6%89%8b%e6%90%93rag%e7%b3%bb%e7%bb%9f-ragent-ai%ef%bc%884%ef%bc%89","status":"publish","type":"post","link":"https:\/\/eve2333.top\/?p=1875","title":{"rendered":"\u624b\u6413RAG\u7cfb\u7edf \u2013 Ragent AI\uff084\uff09"},"content":{"rendered":"\n<h1 class=\"wp-block-heading\">\u7b2c9\u5c0f\u8282\uff1a\u5411\u91cf\u6570\u636e\u5e93\u7684\u539f\u7406\u4e0e\u9009\u578b<\/h1>\n\n\n\n<p>mysql\u4f60\u5199\u6210json\u6587\u4ef6\uff0c\u68c0\u7d22\u7684\u65f6\u5019\uff0c\u4f60\u5fc5\u987b\u628a\u6240\u6709\u5411\u91cf\u90fd\u8bfb\u51fa\u6765\uff0c\u5728\u5185\u5b58\u91cc\u9010\u4e2a\u8ba1\u7b97\u76f8\u4f3c\u5ea6\u3002\u8fd9\u5c31\u662f\u6240\u8c13\u7684\u66b4\u529b\u641c\u7d22\uff0c<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>1.\u628a\u7528\u6237\u7684\u95ee\u9898\u4e5f\u5411\u91cf\u5316\uff0c\u5f97\u5230\u4e00\u4e2a 4096 \u7ef4\u7684\u67e5\u8be2\u5411\u91cf<\/li>\n\n\n\n<li>2.\u4ece\u6570\u636e\u5e93\u91cc\u8bfb\u51fa 100 \u4e07\u4e2a\u5411\u91cf<\/li>\n\n\n\n<li>3.\u9010\u4e2a\u8ba1\u7b97\u67e5\u8be2\u5411\u91cf\u548c\u8fd9 100 \u4e07\u4e2a\u5411\u91cf\u7684\u4f59\u5f26\u76f8\u4f3c\u5ea6<\/li>\n\n\n\n<li>4.\u6392\u5e8f\uff0c\u53d6\u76f8\u4f3c\u5ea6\u6700\u9ad8\u7684 Top-K \u4e2a<\/li>\n<\/ul>\n\n\n\n<ul class=\"wp-block-list\">\n<li>2s-5s\u53ea\u662f\u5355\u6b21\u67e5\u8be2\u7684\u8017\u65f6\uff0c\u5982\u679c\u6709 100 \u4e2a\u7528\u6237\u540c\u65f6\u63d0\u95ee\u5462\uff1f<\/li>\n\n\n\n<li>\u6570\u636e\u91cf\u8fd8\u4f1a\u589e\u957f\uff0c500 \u4e07\u30011000 \u4e07\u4e2a chunk \u5462\uff1f<\/li>\n\n\n\n<li>\u5b9e\u9645\u7684 RAG \u7cfb\u7edf\u5bf9\u5ef6\u8fdf\u5f88\u654f\u611f\uff0c\u7528\u6237\u95ee\u4e00\u4e2a\u95ee\u9898\u4e0d\u53ea\u662f\u5411\u91cf\u68c0\u7d22\uff0c\u8fd8\u6709\u5f88\u591a\u5176\u4ed6\u6b65\u9aa4\uff0c\u4f53\u9a8c\u5f88\u5dee<\/li>\n\n\n\n<li>\u800c\u4e14\u6bcf\u6b21\u67e5\u8be2\u90fd\u8981\u628a 100 \u4e07\u4e2a\u5411\u91cf\u4ece\u78c1\u76d8\u8bfb\u5230\u5185\u5b58\uff0cI\/O \u5f00\u9500\u4e5f\u5f88\u5927<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"3\">\u8fd1\u4f3c\u6700\u8fd1\u90bb\u641c\u7d22<\/h3>\n\n\n\n<p>\u65e2\u7136\u9010\u4e2a\u6bd4\u8f83\u592a\u6162\uff0c\u80fd\u4e0d\u80fd\u4e0d\u6bd4\u8f83\u6240\u6709\u5411\u91cf\uff0c\u53ea\u6bd4\u8f83\u5176\u4e2d\u4e00\u90e8\u5206\uff0c\u5c31\u627e\u5230\u5927\u6982\u7387\u6700\u76f8\u4f3c\u7684\u90a3\u51e0\u4e2a\uff1fANN \u5219\u662f\u5148\u6309\u533a\u57df\u5212\u5206\uff0c\u518d\u6309\u7279\u5f81\u7f29\u5c0f\u8303\u56f4\uff0c\u6700\u540e\u53ea\u5728\u4e00\u5c0f\u64ae\u4eba\u91cc\u7cbe\u786e\u6bd4\u8f83\u3002<\/p>\n\n\n\n<p>\u7b54\u6848\u662f\u53ef\u4ee5\u3002\u8fd9\u5c31\u662f <strong>ANN<\/strong>\uff08Approximate Nearest Neighbor\uff0c\u8fd1\u4f3c\u6700\u8fd1\u90bb\u641c\u7d22\uff09\u7684\u6838\u5fc3\u601d\u60f3\u3002<\/p>\n\n\n\n<p>\u6ce8\u610f\u8fd9\u91cc\u7684\u5173\u952e\u8bcd\u662f\u201c\u8fd1\u4f3c\u201d\u2014\u2014ANN \u4e0d\u4fdd\u8bc1\u627e\u5230\u7684\u4e00\u5b9a\u662f\u5168\u5c40\u6700\u76f8\u4f3c\u7684\u5411\u91cf\uff0c\u4f46\u5b83\u80fd\u5728\u6781\u77ed\u7684\u65f6\u95f4\u5185\u627e\u5230\u975e\u5e38\u63a5\u8fd1\u6700\u4f18\u89e3\u7684\u7ed3\u679c\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u8bb2\u4e24\u79cd\u6700\u4e3b\u6d41\u7684 ANN \u7d22\u5f15\u7b97\u6cd5\uff1aIVF \u548c HNSW<\/h3>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"2-ivf\">2. IVF\uff08\u5012\u6392\u6587\u4ef6\u7d22\u5f15\uff09\uff1a\u5148\u5206\u533a\u518d\u641c\u7d22<\/h4>\n\n\n\n<p>IVF \u7684\u5168\u79f0\u662f Inverted File Index\uff08\u5012\u6392\u6587\u4ef6\u7d22\u5f15\uff09\u3002\u540d\u5b57\u542c\u8d77\u6765\u5f88\u5b66\u672f\uff0c\u4f46\u601d\u8def\u975e\u5e38\u76f4\u89c9\u3002<\/p>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"2-1-ivf\">2.1 IVF \u7684\u5de5\u4f5c\u539f\u7406<\/h4>\n\n\n\n<p>IVF \u7684\u6838\u5fc3\u601d\u60f3\u5c31\u4e00\u53e5\u8bdd\uff1a\u628a\u5411\u91cf\u7a7a\u95f4\u5212\u5206\u6210\u82e5\u5e72\u4e2a\u533a\u57df\uff0c\u67e5\u8be2\u65f6\u53ea\u5728\u6700\u53ef\u80fd\u7684\u51e0\u4e2a\u533a\u57df\u91cc\u641c\u7d22\u3002<\/p>\n\n\n\n<p>\u5177\u4f53\u600e\u4e48\u505a\uff1f\u5206\u4e24\u4e2a\u9636\u6bb5\uff1a<\/p>\n\n\n\n<p>\u5efa\u7d22\u5f15\u9636\u6bb5\uff08\u79bb\u7ebf\uff09\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>1.\u7528\u805a\u7c7b\u7b97\u6cd5\uff08\u901a\u5e38\u662f K-Means\uff09\u628a\u6240\u6709\u5411\u91cf\u5206\u6210 <code>nlist<\/code> \u4e2a\u7c07\uff08cluster\uff09<\/li>\n\n\n\n<li>2.\u6bcf\u4e2a\u7c07\u6709\u4e00\u4e2a\u4e2d\u5fc3\u70b9\uff08centroid\uff09\uff0c\u4ee3\u8868\u8fd9\u4e2a\u7c07\u91cc\u6240\u6709\u5411\u91cf\u7684\"\u5e73\u5747\u4f4d\u7f6e\"<\/li>\n\n\n\n<li>3.\u6bcf\u4e2a\u5411\u91cf\u88ab\u5206\u914d\u5230\u79bb\u5b83\u6700\u8fd1\u7684\u90a3\u4e2a\u7c07<\/li>\n<\/ol>\n\n\n\n<p>\u68c0\u7d22\u9636\u6bb5\uff08\u5728\u7ebf\uff09\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>1.\u62ff\u5230\u67e5\u8be2\u5411\u91cf\u540e\uff0c\u5148\u8ba1\u7b97\u5b83\u548c\u6240\u6709\u7c07\u4e2d\u5fc3\u70b9\u7684\u8ddd\u79bb<\/li>\n\n\n\n<li>2.\u627e\u5230\u6700\u8fd1\u7684 <code>nprobe<\/code> \u4e2a\u7c07\uff08nprobe \u662f\u4e00\u4e2a\u53ef\u8c03\u53c2\u6570\uff09<\/li>\n\n\n\n<li>3.\u53ea\u5728\u8fd9 <code>nprobe<\/code> \u4e2a\u7c07\u91cc\u7684\u5411\u91cf\u4e2d\u505a\u7cbe\u786e\u641c\u7d22<\/li>\n<\/ol>\n\n\n\n<p>\u5047\u8bbe <code>nlist = 100<\/code>\uff08\u5206\u6210 100 \u4e2a\u7c07\uff09\uff0c<code>nprobe = 10<\/code>\uff08\u67e5\u8be2\u65f6\u641c\u7d22 10 \u4e2a\u7c07\uff09\uff0c\u90a3\u4e48\u6bcf\u6b21\u67e5\u8be2\u53ea\u9700\u8981\u641c\u7d22\u5927\u7ea6 10% \u7684\u5411\u91cf\uff0c\u901f\u5ea6\u63d0\u5347\u7ea6 10 \u500d\u3002<\/p>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"2-2-ivf\">IVF \u7684\u4f18\u7f3a\u70b9<\/h4>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><tbody><tr><th class=\"has-text-align-left\" data-align=\"left\">\u4f18\u70b9<\/th><th class=\"has-text-align-left\" data-align=\"left\">\u7f3a\u70b9<\/th><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\">\u539f\u7406\u7b80\u5355\uff0c\u5bb9\u6613\u7406\u89e3\u548c\u8c03\u4f18<\/td><td class=\"has-text-align-left\" data-align=\"left\">\u9700\u8981\u8bad\u7ec3\u805a\u7c7b\u6a21\u578b\uff08\u6570\u636e\u91cf\u5927\u65f6\u8bad\u7ec3\u8f83\u6162\uff09<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\">\u5185\u5b58\u5360\u7528\u76f8\u5bf9\u8f83\u4f4e<\/td><td class=\"has-text-align-left\" data-align=\"left\">\u805a\u7c7b\u8fb9\u754c\u5904\u7684\u5411\u91cf\u53ef\u80fd\u88ab\u6f0f\u6389\uff08\u5f71\u54cd\u53ec\u56de\u7387\uff09<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\">\u9002\u5408\u6570\u636e\u91cf\u975e\u5e38\u5927\u7684\u573a\u666f<\/td><td class=\"has-text-align-left\" data-align=\"left\">nlist \u548c nprobe \u7684\u8c03\u53c2\u9700\u8981\u7ecf\u9a8c<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\">\u652f\u6301\u589e\u91cf\u63d2\u5165\uff08\u4f46\u53ef\u80fd\u9700\u8981\u5b9a\u671f\u91cd\u65b0\u805a\u7c7b\uff09<\/td><td class=\"has-text-align-left\" data-align=\"left\">\u6570\u636e\u5206\u5e03\u4e0d\u5747\u5300\u65f6\u6548\u679c\u4e0b\u964d<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p>IVF \u8fd8\u6709\u51e0\u4e2a\u53d8\u4f53\uff1aIVF_FLAT \u662f\u5728\u7c07\u5185\u505a\u7cbe\u786e\u641c\u7d22\uff0cIVF_SQ8 \u662f\u5bf9\u7c07\u5185\u5411\u91cf\u505a\u91cf\u5316\u538b\u7f29\u4ee5\u8282\u7701\u5185\u5b58\uff0cIVF_PQ \u5219\u7528\u4e58\u79ef\u91cf\u5316\u8fdb\u4e00\u6b65\u538b\u7f29\u3002\u540e\u9762\u7684\u9009\u578b\u8868\u683c\u91cc\u4f1a\u5bf9\u6bd4\u5b83\u4eec\u7684\u5dee\u5f02\u3002<\/p>\n<\/blockquote>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"3-hnsw\">HNSW\uff08\u5206\u5c42\u53ef\u5bfc\u822a\u5c0f\u4e16\u754c\u56fe\uff09\uff1a\u6700\u4e3b\u6d41\u7684\u7d22\u5f15\u7b97\u6cd5<\/h4>\n\n\n\n<p>HNSW \u7684\u5168\u79f0\u662f Hierarchical Navigable Small World Graph\uff08\u5206\u5c42\u53ef\u5bfc\u822a\u5c0f\u4e16\u754c\u56fe\uff09\u3002\u540d\u5b57\u5f88\u957f\uff0c\u4f46\u5b83\u662f\u76ee\u524d\u6700\u4e3b\u6d41\u3001\u6548\u679c\u6700\u597d\u7684 ANN \u7d22\u5f15\u7b97\u6cd5\uff0c\u51e0\u4e4e\u6240\u6709\u5411\u91cf\u6570\u636e\u5e93\u90fd\u628a\u5b83\u4f5c\u4e3a\u9ed8\u8ba4\u6216\u63a8\u8350\u7684\u7d22\u5f15\u7c7b\u578b\u3002<\/p>\n\n\n\n<p>HNSW \u7684\u6838\u5fc3\u7ed3\u6784\u662f\u4e00\u4e2a\u591a\u5c42\u56fe\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u6700\u5e95\u5c42\uff08Layer 0\uff09\u5305\u542b\u6240\u6709\u5411\u91cf\uff0c\u6bcf\u4e2a\u5411\u91cf\u548c\u5b83\u9644\u8fd1\u7684\u82e5\u5e72\u4e2a\u5411\u91cf\u76f8\u8fde<\/li>\n\n\n\n<li>\u5f80\u4e0a\u6bcf\u4e00\u5c42\u7684\u5411\u91cf\u6570\u91cf\u8d8a\u6765\u8d8a\u5c11\uff08\u968f\u673a\u62bd\u53d6\uff09\uff0c\u4f46\u8fde\u63a5\u7684\u8de8\u5ea6\u8d8a\u6765\u8d8a\u5927<\/li>\n\n\n\n<li>\u6700\u9876\u5c42\u53ea\u6709\u5f88\u5c11\u7684\u51e0\u4e2a\u5411\u91cf\uff0c\u4f46\u5b83\u4eec\u4e4b\u95f4\u7684\u8fde\u63a5\u8986\u76d6\u4e86\u6574\u4e2a\u5411\u91cf\u7a7a\u95f4<\/li>\n<\/ul>\n\n\n\n<p>\u68c0\u7d22\u7684\u65f6\u5019\uff0c\u4ece\u6700\u9876\u5c42\u5f00\u59cb\uff0c\u5feb\u901f\u5b9a\u4f4d\u5230\u76ee\u6807\u7684\u5927\u81f4\u533a\u57df\uff0c\u7136\u540e\u9010\u5c42\u4e0b\u964d\uff0c\u6bcf\u4e00\u5c42\u90fd\u5728\u66f4\u7cbe\u7ec6\u7684\u8303\u56f4\u5185\u641c\u7d22\uff0c\u6700\u7ec8\u5728\u6700\u5e95\u5c42\u627e\u5230\u6700\u76f8\u4f3c\u7684\u5411\u91cf\u3002<\/p>\n\n\n\n<p>\u4e3a\u4e86\u8ba9\u4f60\u66f4\u76f4\u89c2\u5730\u7406\u89e3\uff0c\u54b1\u4eec\u7528\u4e00\u4e2a\u7b80\u5316\u7684\u4f8b\u5b50\u8d70\u4e00\u904d\u3002<\/p>\n\n\n\n<p>\u5047\u8bbe\u5411\u91cf\u6570\u636e\u5e93\u91cc\u6709 8 \u4e2a\u5411\u91cf\uff08A\u3001B\u3001C\u3001D\u3001E\u3001F\u3001G\u3001H\uff09\uff0cHNSW \u5efa\u4e86 3 \u5c42\u56fe\u3002\u73b0\u5728\u8981\u67e5\u8be2\u548c\u5411\u91cf Q \u6700\u76f8\u4f3c\u7684\u5411\u91cf\u3002<\/p>\n\n\n\n<p>Layer 2\uff08\u9876\u5c42\uff09\uff1a\u53ea\u6709 A \u548c E \u4e24\u4e2a\u5411\u91cf<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u4ece A \u5f00\u59cb\uff0c\u8ba1\u7b97 Q \u548c A \u7684\u8ddd\u79bb\u3001Q \u548c E \u7684\u8ddd\u79bb<\/li>\n\n\n\n<li>\u53d1\u73b0 E \u79bb Q \u66f4\u8fd1\uff0c\u79fb\u52a8\u5230 E<\/li>\n<\/ul>\n\n\n\n<p>Layer 1\uff08\u4e2d\u95f4\u5c42\uff09\uff1a\u6709 A\u3001C\u3001E\u3001G \u56db\u4e2a\u5411\u91cf<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u4ece E \u51fa\u53d1\uff0c\u770b E \u7684\u90bb\u5c45\uff1aC \u548c G<\/li>\n\n\n\n<li>\u8ba1\u7b97 Q \u548c C\u3001Q \u548c G \u7684\u8ddd\u79bb<\/li>\n\n\n\n<li>\u53d1\u73b0 G \u79bb Q \u66f4\u8fd1\uff0c\u79fb\u52a8\u5230 G<\/li>\n<\/ul>\n\n\n\n<p>Layer 0\uff08\u5e95\u5c42\uff09\uff1a\u6240\u6709 8 \u4e2a\u5411\u91cf\u90fd\u5728<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u4ece G \u51fa\u53d1\uff0c\u770b G \u7684\u90bb\u5c45\uff1aF \u548c H<\/li>\n\n\n\n<li>\u8ba1\u7b97 Q \u548c F\u3001Q \u548c H \u7684\u8ddd\u79bb<\/li>\n\n\n\n<li>\u53d1\u73b0 H \u79bb Q \u6700\u8fd1<\/li>\n\n\n\n<li>\u518d\u770b H \u7684\u90bb\u5c45\uff0c\u6ca1\u6709\u6bd4 H \u66f4\u8fd1\u7684\u4e86<\/li>\n\n\n\n<li>\u7ed3\u679c\uff1aH \u662f\u548c Q \u6700\u76f8\u4f3c\u7684\u5411\u91cf<\/li>\n<\/ul>\n\n\n\n<p>\u6574\u4e2a\u8fc7\u7a0b\u53ea\u8ba1\u7b97\u4e86 6 \u6b21\u8ddd\u79bb\uff08A\u3001E\u3001C\u3001G\u3001F\u3001H\uff09\uff0c\u800c\u4e0d\u662f 8 \u6b21\u3002\u6570\u636e\u91cf\u5c0f\u7684\u65f6\u5019\u5dee\u8ddd\u4e0d\u660e\u663e\uff0c\u4f46\u5982\u679c\u6709 100 \u4e07\u4e2a\u5411\u91cf\uff0cHNSW \u901a\u5e38\u53ea\u9700\u8981\u8ba1\u7b97\u51e0\u767e\u5230\u51e0\u5343\u6b21\u8ddd\u79bb\u5c31\u80fd\u627e\u5230\u7ed3\u679c\u3002<\/p>\n\n\n\n<p>HNSW \u5feb\u7684\u539f\u56e0\u53ef\u4ee5\u5f52\u7ed3\u4e3a\u4e24\u70b9\uff1a<\/p>\n\n\n\n<p>\u7b2c\u4e00\uff0c\u591a\u5c42\u7ed3\u6784\u5b9e\u73b0\u4e86\u201c\u7c97\u5230\u7ec6\u201d\u7684\u641c\u7d22\u3002\u9876\u5c42\u7684\u5c11\u91cf\u5411\u91cf\u5e2e\u4f60\u5feb\u901f\u8df3\u5230\u76ee\u6807\u9644\u8fd1\uff0c\u5e95\u5c42\u7684\u5bc6\u96c6\u8fde\u63a5\u5e2e\u4f60\u7cbe\u786e\u5b9a\u4f4d\u3002\u8fd9\u548c\u8df3\u8868\uff08Skip List\uff09\u7684\u601d\u60f3\u5f88\u50cf\u2014\u2014\u5982\u679c\u4f60\u4e86\u89e3 Redis \u7684\u6709\u5e8f\u96c6\u5408\uff08ZSet\uff09\uff0c\u5b83\u5e95\u5c42\u7528\u7684\u5c31\u662f\u8df3\u8868\uff0c\u539f\u7406\u662f\u76f8\u901a\u7684\u3002<\/p>\n\n\n\n<p>\u7b2c\u4e8c\uff0c\u201c\u5c0f\u4e16\u754c\u201d\u7279\u6027\u4fdd\u8bc1\u4e86\u56fe\u7684\u8fde\u901a\u6027\u3002\u5728 HNSW \u7684\u56fe\u4e2d\uff0c\u4efb\u610f\u4e24\u4e2a\u5411\u91cf\u4e4b\u95f4\u53ea\u9700\u8981\u7ecf\u8fc7\u5f88\u5c11\u7684\u201c\u8df3\u8f6c\u201d\u5c31\u80fd\u5230\u8fbe\uff08\u7c7b\u4f3c\u201c\u516d\u5ea6\u5206\u9694\u7406\u8bba\u201d\u2014\u2014\u4f60\u548c\u4e16\u754c\u4e0a\u4efb\u4f55\u4e00\u4e2a\u4eba\u4e4b\u95f4\u6700\u591a\u53ea\u9694 6 \u4e2a\u4eba\uff09\u3002\u8fd9\u610f\u5473\u7740\u641c\u7d22\u4e0d\u4f1a\u9677\u5165\u6b7b\u89d2\uff0c\u603b\u80fd\u5feb\u901f\u903c\u8fd1\u76ee\u6807\u3002<\/p>\n\n\n\n<p>HNSW \u7684\u68c0\u7d22\u901f\u5ea6\u548c\u7cbe\u5ea6\u90fd\u5f88\u4f18\u79c0\uff0c\u4f46\u5b83\u6709\u4e00\u4e2a\u660e\u663e\u7684\u4ee3\u4ef7\uff1a\u5185\u5b58\u5360\u7528\u5927\u3002<\/p>\n\n\n\n<p>\u56e0\u4e3a HNSW \u9700\u8981\u5728\u5185\u5b58\u4e2d\u7ef4\u62a4\u6574\u4e2a\u56fe\u7ed3\u6784\u2014\u2014\u4e0d\u4ec5\u8981\u5b58\u6240\u6709\u5411\u91cf\u672c\u8eab\uff0c\u8fd8\u8981\u5b58\u5411\u91cf\u4e4b\u95f4\u7684\u8fde\u63a5\u5173\u7cfb\uff08\u8fb9\uff09\u3002\u6bcf\u4e2a\u5411\u91cf\u5728\u6bcf\u4e00\u5c42\u90fd\u6709\u82e5\u5e72\u6761\u8fb9\uff0c\u8fd9\u4e9b\u8fb9\u7684\u5b58\u50a8\u5f00\u9500\u4e0d\u5c0f\u3002<\/p>\n\n\n\n<p>\u5177\u4f53\u6765\u8bf4\uff0cHNSW \u6709\u4e24\u4e2a\u5173\u952e\u53c2\u6570\u5f71\u54cd\u5185\u5b58\u548c\u6027\u80fd\uff1a<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><tbody><tr><th class=\"has-text-align-left\" data-align=\"left\">\u53c2\u6570<\/th><th class=\"has-text-align-left\" data-align=\"left\">\u542b\u4e49<\/th><th class=\"has-text-align-left\" data-align=\"left\">\u8c03\u5927\u7684\u6548\u679c<\/th><th class=\"has-text-align-left\" data-align=\"left\">\u8c03\u5c0f\u7684\u6548\u679c<\/th><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\">M<\/td><td class=\"has-text-align-left\" data-align=\"left\">\u6bcf\u4e2a\u5411\u91cf\u5728\u6bcf\u5c42\u7684\u6700\u5927\u8fde\u63a5\u6570<\/td><td class=\"has-text-align-left\" data-align=\"left\">\u53ec\u56de\u7387\u66f4\u9ad8\uff0c\u4f46\u5185\u5b58\u5360\u7528\u66f4\u5927\uff0c\u5efa\u7d22\u5f15\u66f4\u6162<\/td><td class=\"has-text-align-left\" data-align=\"left\">\u5185\u5b58\u7701\uff0c\u4f46\u53ec\u56de\u7387\u53ef\u80fd\u4e0b\u964d<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\">efConstruction<\/td><td class=\"has-text-align-left\" data-align=\"left\">\u5efa\u7d22\u5f15\u65f6\u7684\u641c\u7d22\u5bbd\u5ea6<\/td><td class=\"has-text-align-left\" data-align=\"left\">\u7d22\u5f15\u8d28\u91cf\u66f4\u9ad8\uff08\u8fde\u63a5\u66f4\u5408\u7406\uff09\uff0c\u4f46\u5efa\u7d22\u5f15\u66f4\u6162<\/td><td class=\"has-text-align-left\" data-align=\"left\">\u5efa\u7d22\u5f15\u5feb\uff0c\u4f46\u7d22\u5f15\u8d28\u91cf\u53ef\u80fd\u4e0b\u964d<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p>\u68c0\u7d22\u65f6\u8fd8\u6709\u4e00\u4e2a\u53c2\u6570 <code>ef<\/code>\uff08\u641c\u7d22\u5bbd\u5ea6\uff09\uff0c\u63a7\u5236\u68c0\u7d22\u65f6\u63a2\u7d22\u7684\u5019\u9009\u96c6\u5927\u5c0f\u3002<code>ef<\/code> \u8d8a\u5927\uff0c\u53ec\u56de\u7387\u8d8a\u9ad8\uff0c\u4f46\u68c0\u7d22\u8d8a\u6162\u3002<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p>\u4e00\u4e2a\u7c97\u7565\u7684\u4f30\u7b97\uff1a100 \u4e07\u4e2a 4096 \u7ef4\u5411\u91cf\uff0c\u7528 HNSW \u7d22\u5f15\uff08M=16\uff09\uff0c\u5927\u7ea6\u9700\u8981 16~20 GB \u5185\u5b58\u3002\u5982\u679c\u4f60\u7684\u670d\u52a1\u5668\u5185\u5b58\u6709\u9650\uff0c\u53ef\u80fd\u9700\u8981\u8003\u8651 IVF \u7cfb\u5217\u7d22\u5f15\uff0c\u5b83\u4eec\u7684\u5185\u5b58\u5360\u7528\u8981\u5c0f\u5f97\u591a\u3002<\/p>\n<\/blockquote>\n\n\n\n<p>Milvus \u652f\u6301\u591a\u79cd\u7d22\u5f15\u7c7b\u578b\uff0c\u4e0b\u9762\u662f\u6700\u5e38\u7528\u7684\u51e0\u79cd\u5bf9\u6bd4\uff1a<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><tbody><tr><th class=\"has-text-align-left\" data-align=\"left\">\u7d22\u5f15\u7c7b\u578b<\/th><th class=\"has-text-align-left\" data-align=\"left\">\u6838\u5fc3\u601d\u60f3<\/th><th class=\"has-text-align-left\" data-align=\"left\">\u68c0\u7d22\u901f\u5ea6<\/th><th class=\"has-text-align-left\" data-align=\"left\">\u53ec\u56de\u7387<\/th><th class=\"has-text-align-left\" data-align=\"left\">\u5185\u5b58\u5360\u7528<\/th><th class=\"has-text-align-left\" data-align=\"left\">\u9002\u7528\u6570\u636e\u91cf<\/th><th class=\"has-text-align-left\" data-align=\"left\">\u9002\u7528\u573a\u666f<\/th><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\">FLAT<\/td><td class=\"has-text-align-left\" data-align=\"left\">\u66b4\u529b\u641c\u7d22\uff0c\u4e0d\u5efa\u7d22\u5f15<\/td><td class=\"has-text-align-left\" data-align=\"left\">\u6700\u6162<\/td><td class=\"has-text-align-left\" data-align=\"left\">100%\uff08\u7cbe\u786e\uff09<\/td><td class=\"has-text-align-left\" data-align=\"left\">\u4f4e\uff08\u53ea\u5b58\u539f\u59cb\u5411\u91cf\uff09<\/td><td class=\"has-text-align-left\" data-align=\"left\">&lt; 10 \u4e07<\/td><td class=\"has-text-align-left\" data-align=\"left\">\u5bf9\u7cbe\u5ea6\u8981\u6c42\u6781\u9ad8\uff0c\u6570\u636e\u91cf\u5c0f<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\">IVF_FLAT<\/td><td class=\"has-text-align-left\" data-align=\"left\">\u805a\u7c7b\u5206\u533a + \u7c07\u5185\u7cbe\u786e\u641c\u7d22<\/td><td class=\"has-text-align-left\" data-align=\"left\">\u5feb<\/td><td class=\"has-text-align-left\" data-align=\"left\">95%~99%<\/td><td class=\"has-text-align-left\" data-align=\"left\">\u8f83\u4f4e<\/td><td class=\"has-text-align-left\" data-align=\"left\">\u767e\u4e07~\u5343\u4e07<\/td><td class=\"has-text-align-left\" data-align=\"left\">\u6570\u636e\u91cf\u5927\uff0c\u5185\u5b58\u6709\u9650<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\">IVF_SQ8<\/td><td class=\"has-text-align-left\" data-align=\"left\">\u805a\u7c7b\u5206\u533a + \u6807\u91cf\u91cf\u5316\u538b\u7f29<\/td><td class=\"has-text-align-left\" data-align=\"left\">\u5feb<\/td><td class=\"has-text-align-left\" data-align=\"left\">93%~97%<\/td><td class=\"has-text-align-left\" data-align=\"left\">\u4f4e\uff08\u5411\u91cf\u538b\u7f29\u4e3a 1\/4\uff09<\/td><td class=\"has-text-align-left\" data-align=\"left\">\u5343\u4e07~\u4ebf\u7ea7<\/td><td class=\"has-text-align-left\" data-align=\"left\">\u6570\u636e\u91cf\u5f88\u5927\uff0c\u613f\u610f\u727a\u7272\u4e00\u70b9\u7cbe\u5ea6\u6362\u5185\u5b58<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\">HNSW<\/td><td class=\"has-text-align-left\" data-align=\"left\">\u591a\u5c42\u56fe\u7ed3\u6784<\/td><td class=\"has-text-align-left\" data-align=\"left\">\u6700\u5feb<\/td><td class=\"has-text-align-left\" data-align=\"left\">97%~99.5%<\/td><td class=\"has-text-align-left\" data-align=\"left\">\u9ad8\uff08\u9700\u5b58\u56fe\u7ed3\u6784\uff09<\/td><td class=\"has-text-align-left\" data-align=\"left\">\u767e\u4e07~\u5343\u4e07<\/td><td class=\"has-text-align-left\" data-align=\"left\">\u5bf9\u901f\u5ea6\u548c\u7cbe\u5ea6\u90fd\u6709\u8981\u6c42\uff0c\u5185\u5b58\u5145\u8db3<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\">DISKANN<\/td><td class=\"has-text-align-left\" data-align=\"left\">\u57fa\u4e8e\u78c1\u76d8\u7684\u56fe\u7d22\u5f15<\/td><td class=\"has-text-align-left\" data-align=\"left\">\u8f83\u5feb<\/td><td class=\"has-text-align-left\" data-align=\"left\">95%~98%<\/td><td class=\"has-text-align-left\" data-align=\"left\">\u4f4e\uff08\u7d22\u5f15\u5728\u78c1\u76d8\uff09<\/td><td class=\"has-text-align-left\" data-align=\"left\">\u4ebf\u7ea7<\/td><td class=\"has-text-align-left\" data-align=\"left\">\u6570\u636e\u91cf\u6781\u5927\uff0c\u5185\u5b58\u4e0d\u591f\u653e HNSW<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p>\u5bf9\u4e8e\u5927\u591a\u6570 RAG \u9879\u76ee\u6765\u8bf4\uff0c\u6570\u636e\u91cf\u5728\u767e\u4e07\u7ea7\u522b\uff0cHNSW \u662f\u6700\u4f18\u9009\u62e9\u3002\u8fd9\u4e5f\u662f\u4e3a\u4ec0\u4e48\u540e\u9762\u7684\u5b9e\u6218\u4ee3\u7801\u91cc\u6211\u4eec\u7528 HNSW \u4f5c\u4e3a\u7d22\u5f15\u7c7b\u578b\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"1\">1. \u5411\u91cf\u6570\u636e\u5e93\u7684\u5206\u7c7b<\/h3>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"1-1\">1.1 \u4e13\u7528\u5411\u91cf\u6570\u636e\u5e93<\/h4>\n\n\n\n<p>\u4ece\u96f6\u5f00\u59cb\u4e3a\u5411\u91cf\u68c0\u7d22\u8bbe\u8ba1\u7684\u6570\u636e\u5e93\uff0c\u5411\u91cf\u662f\u4e00\u7b49\u516c\u6c11\u3002\u4ee3\u8868\u4ea7\u54c1\uff1aMilvus\u3001Qdrant\u3001Weaviate\u3001Pinecone\u3001Chroma\u3002<\/p>\n\n\n\n<p>\u5b83\u4eec\u7684\u7279\u70b9\u662f\uff1a\u539f\u751f\u652f\u6301\u591a\u79cd ANN \u7d22\u5f15\u7b97\u6cd5\uff0c\u9488\u5bf9\u5411\u91cf\u68c0\u7d22\u505a\u4e86\u5927\u91cf\u5e95\u5c42\u4f18\u5316\uff08\u5185\u5b58\u7ba1\u7406\u3001\u5e76\u884c\u8ba1\u7b97\u3001\u7d22\u5f15\u6784\u5efa\u7b49\uff09\uff0c\u901a\u5e38\u8fd8\u652f\u6301\u6807\u91cf\u8fc7\u6ee4\uff08\u5728\u5411\u91cf\u68c0\u7d22\u7684\u540c\u65f6\u6309\u5143\u6570\u636e\u6761\u4ef6\u8fc7\u6ee4\uff09\u3002<\/p>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"1-2\">1.2 \u4f20\u7edf\u6570\u636e\u5e93\u7684\u5411\u91cf\u6269\u5c55<\/h4>\n\n\n\n<p>\u5728\u5df2\u6709\u7684\u5173\u7cfb\u578b\u6570\u636e\u5e93\u4e0a\u52a0\u4e00\u4e2a\u5411\u91cf\u68c0\u7d22\u63d2\u4ef6\u3002\u4ee3\u8868\u4ea7\u54c1\uff1apgvector\uff08PostgreSQL \u7684\u6269\u5c55\uff09\u3001MySQL 8.0+ \u7684\u5411\u91cf\u652f\u6301\u3001Elasticsearch \u7684 kNN \u641c\u7d22\u3002<\/p>\n\n\n\n<p>\u5b83\u4eec\u7684\u4f18\u52bf\u662f\u4e0d\u7528\u5f15\u5165\u65b0\u7684\u57fa\u7840\u8bbe\u65bd\u2014\u2014\u5982\u679c\u4f60\u7684\u9879\u76ee\u5df2\u7ecf\u5728\u7528 PostgreSQL\uff0c\u52a0\u4e00\u4e2a pgvector \u6269\u5c55\u5c31\u80fd\u5b58\u5411\u91cf\u3001\u505a\u68c0\u7d22\uff0c\u8fd0\u7ef4\u6210\u672c\u4f4e\u3002\u4f46\u5728\u5927\u6570\u636e\u91cf\u4e0b\u7684\u68c0\u7d22\u6027\u80fd\u3001\u7d22\u5f15\u7c7b\u578b\u7684\u4e30\u5bcc\u5ea6\u3001\u4ee5\u53ca\u5411\u91cf\u68c0\u7d22\u7684\u4e13\u9879\u4f18\u5316\u4e0a\uff0c\u548c\u4e13\u7528\u5411\u91cf\u6570\u636e\u5e93\u8fd8\u662f\u6709\u5dee\u8ddd\u3002<\/p>\n\n\n\n<p>\u6211\u4eec\u9009\u62e9\u6700\u7ecf\u5178\u7684Milvus\uff0c\u5176\u5f88\u597d\uff0cfaiss\u548c\u4e00\u7cfb\u5217\u884d\u751f\u9879\u76ee\u8fd8\u7528\u7684\u4ed6\u5462<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"1-collection\">1. Collection = \u8868<\/h3>\n\n\n\n<p>Collection \u662f Milvus \u4e2d\u6570\u636e\u7ec4\u7ec7\u7684\u57fa\u672c\u5355\u4f4d\uff0c\u5bf9\u5e94 MySQL \u4e2d\u7684\u8868\uff08Table\uff09<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"2-schema\">2. Schema = \u8868\u7ed3\u6784<\/h3>\n\n\n\n<p>Schema \u5b9a\u4e49\u4e86 Collection \u4e2d\u6bcf\u6761\u6570\u636e\u5305\u542b\u54ea\u4e9b\u5b57\u6bb5\uff0c\u5bf9\u5e94 MySQL \u4e2d\u7684\u8868\u7ed3\u6784\uff08CREATE TABLE \u65f6\u5b9a\u4e49\u7684\u5217\uff09\u3002<\/p>\n\n\n\n<p>\u4e00\u4e2a\u5178\u578b\u7684 RAG \u573a\u666f\u7684 Schema \u5305\u542b\u4e09\u7c7b\u5b57\u6bb5\uff1a<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><tbody><tr><th class=\"has-text-align-left\" data-align=\"left\">\u5b57\u6bb5\u7c7b\u578b<\/th><th class=\"has-text-align-left\" data-align=\"left\">\u793a\u4f8b<\/th><th class=\"has-text-align-left\" data-align=\"left\">\u8bf4\u660e<\/th><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\">\u4e3b\u952e\u5b57\u6bb5<\/td><td class=\"has-text-align-left\" data-align=\"left\">id\uff08Int64 \u6216 VarChar\uff09<\/td><td class=\"has-text-align-left\" data-align=\"left\">\u6bcf\u6761\u6570\u636e\u7684\u552f\u4e00\u6807\u8bc6\uff0c\u7c7b\u4f3c MySQL \u7684\u4e3b\u952e<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\">\u5411\u91cf\u5b57\u6bb5<\/td><td class=\"has-text-align-left\" data-align=\"left\">vector\uff08FloatVector\uff09<\/td><td class=\"has-text-align-left\" data-align=\"left\">\u5b58\u50a8 Embedding \u5411\u91cf\uff0c\u9700\u8981\u6307\u5b9a\u7ef4\u5ea6<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\">\u6807\u91cf\u5b57\u6bb5<\/td><td class=\"has-text-align-left\" data-align=\"left\">chunk_text\u3001doc_id\u3001category \u7b49<\/td><td class=\"has-text-align-left\" data-align=\"left\">\u5b58\u50a8\u5143\u6570\u636e\uff0c\u7528\u4e8e\u8fc7\u6ee4\u548c\u5c55\u793a<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"2-1\">2.1 \u5411\u91cf\u5b57\u6bb5\u548c\u6807\u91cf\u5b57\u6bb5\u7684\u533a\u522b<\/h4>\n\n\n\n<p>\u8fd9\u91cc\u8981\u7279\u522b\u8bf4\u660e\u4e00\u4e0b\u5411\u91cf\u5b57\u6bb5\u548c\u6807\u91cf\u5b57\u6bb5\u7684\u533a\u522b\uff0c\u56e0\u4e3a\u8fd9\u662f Milvus \u548c\u4f20\u7edf\u6570\u636e\u5e93\u6700\u5927\u7684\u4e0d\u540c\u3002<\/p>\n\n\n\n<p>\u6807\u91cf\u5b57\u6bb5\u5b58\u50a8\u7684\u662f\u666e\u901a\u6570\u636e\uff08\u5b57\u7b26\u4e32\u3001\u6570\u5b57\u3001\u5e03\u5c14\u503c\u7b49\uff09\uff0c\u548c MySQL \u7684\u5217\u6ca1\u4ec0\u4e48\u533a\u522b\u3002\u4f60\u53ef\u4ee5\u5bf9\u6807\u91cf\u5b57\u6bb5\u5efa\u7d22\u5f15\u3001\u505a\u7b49\u503c\u67e5\u8be2\u3001\u8303\u56f4\u67e5\u8be2\u3001\u6a21\u7cca\u5339\u914d\u7b49\u3002<\/p>\n\n\n\n<p>\u5411\u91cf\u5b57\u6bb5\u5b58\u50a8\u7684\u662f\u9ad8\u7ef4\u6d6e\u70b9\u6570\u6570\u7ec4\uff08\u6bd4\u5982 4096 \u7ef4\u7684 float \u6570\u7ec4\uff09\uff0c\u5b83\u4e0d\u80fd\u505a\u7b49\u503c\u67e5\u8be2\uff08\u4e24\u4e2a\u5411\u91cf\u5b8c\u5168\u76f8\u7b49\u7684\u6982\u7387\u51e0\u4e4e\u4e3a\u96f6\uff09\uff0c\u53ea\u80fd\u505a\u76f8\u4f3c\u5ea6\u68c0\u7d22\uff08\u627e\u6700\u8fd1\u7684 Top-K \u4e2a\uff09\u3002\u5411\u91cf\u5b57\u6bb5\u9700\u8981\u5efa\u4e13\u95e8\u7684\u5411\u91cf\u7d22\u5f15\uff08HNSW\u3001IVF \u7b49\uff09\uff0c\u8fd9\u548c\u6807\u91cf\u5b57\u6bb5\u7684 B+ \u6811\u7d22\u5f15\u662f\u5b8c\u5168\u4e0d\u540c\u7684\u4e1c\u897f\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"3-index\">3. Index = \u7d22\u5f15<\/h3>\n\n\n\n<p>Milvus \u4e2d\u7684\u7d22\u5f15\u5206\u4e24\u79cd\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u5411\u91cf\u7d22\u5f15\uff1a\u4e3a\u5411\u91cf\u5b57\u6bb5\u521b\u5efa\u7684 ANN \u7d22\u5f15\uff08HNSW\u3001IVF_FLAT \u7b49\uff09\uff0c\u7528\u4e8e\u52a0\u901f\u5411\u91cf\u76f8\u4f3c\u5ea6\u68c0\u7d22\u3002\u8fd9\u662f Milvus \u7684\u6838\u5fc3\u80fd\u529b\u3002<\/li>\n\n\n\n<li>\u6807\u91cf\u7d22\u5f15\uff1a\u4e3a\u6807\u91cf\u5b57\u6bb5\u521b\u5efa\u7684\u7d22\u5f15\uff0c\u7528\u4e8e\u52a0\u901f\u8fc7\u6ee4\u6761\u4ef6\u7684\u6267\u884c\u3002\u7c7b\u4f3c MySQL \u7684 B+ \u6811\u7d22\u5f15\u3002<\/li>\n<\/ul>\n\n\n\n<p>\u5728 RAG \u573a\u666f\u4e2d\uff0c\u901a\u5e38\u9700\u8981\u540c\u65f6\u7528\u5230\u4e24\u79cd\u7d22\u5f15\uff1a\u5411\u91cf\u7d22\u5f15\u7528\u4e8e\u627e\u5230\u8bed\u4e49\u6700\u76f8\u4f3c\u7684 chunk\uff0c\u6807\u91cf\u7d22\u5f15\u7528\u4e8e\u6309\u5143\u6570\u636e\u8fc7\u6ee4\uff08\u6bd4\u5982\u53ea\u641c\u7d22\u67d0\u4e2a\u7c7b\u522b\u7684 chunk\uff09\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"4-partition\">4. Partition = \u5206\u533a<\/h3>\n\n\n\n<p>Partition \u662f Collection \u5185\u90e8\u7684\u6570\u636e\u5206\u533a\uff0c\u5bf9\u5e94 MySQL \u7684\u5206\u533a\u8868\u3002<\/p>\n\n\n\n<p>\u68c0\u7d22\u7684\u65f6\u5019\u53ef\u4ee5\u6307\u5b9a\u53ea\u5728\u67d0\u4e2a Partition \u91cc\u641c\u7d22\uff0c\u8fd9\u6837\u641c\u7d22\u8303\u56f4\u66f4\u5c0f\uff0c\u901f\u5ea6\u66f4\u5feb\u3002<\/p>\n\n\n\n<p>\u4e0d\u8fc7\u9700\u8981\u6ce8\u610f\uff1aPartition \u4e0d\u662f\u5fc5\u987b\u7684\u3002\u5982\u679c\u4f60\u7684\u6570\u636e\u91cf\u4e0d\u5927\uff08&lt; 100 \u4e07\uff09\uff0c\u6216\u8005\u6ca1\u6709\u660e\u786e\u7684\u5206\u533a\u7ef4\u5ea6\uff0c\u4e0d\u5206\u533a\u4e5f\u5b8c\u5168\u6ca1\u95ee\u9898\u3002\u7528\u6807\u91cf\u8fc7\u6ee4\uff08\u5728 WHERE \u6761\u4ef6\u91cc\u52a0 <code>category = 'return_policy'<\/code>\uff09\u4e5f\u80fd\u8fbe\u5230\u7c7b\u4f3c\u7684\u6548\u679c\uff0c\u53ea\u662f\u5728\u6570\u636e\u91cf\u5f88\u5927\u65f6\u6027\u80fd\u4e0d\u5982 Partition\u3002<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><tbody><tr><th class=\"has-text-align-left\" data-align=\"left\">Milvus \u6982\u5ff5<\/th><th class=\"has-text-align-left\" data-align=\"left\">MySQL \u5bf9\u5e94<\/th><th class=\"has-text-align-left\" data-align=\"left\">\u8bf4\u660e<\/th><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\">Collection<\/td><td class=\"has-text-align-left\" data-align=\"left\">Table<\/td><td class=\"has-text-align-left\" data-align=\"left\">\u6570\u636e\u7684\u57fa\u672c\u7ec4\u7ec7\u5355\u4f4d<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\">Schema<\/td><td class=\"has-text-align-left\" data-align=\"left\">CREATE TABLE \u7684\u5217\u5b9a\u4e49<\/td><td class=\"has-text-align-left\" data-align=\"left\">\u5b9a\u4e49\u5b57\u6bb5\u540d\u3001\u7c7b\u578b\u3001\u7ea6\u675f<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\">Field<\/td><td class=\"has-text-align-left\" data-align=\"left\">Column<\/td><td class=\"has-text-align-left\" data-align=\"left\">\u5355\u4e2a\u5b57\u6bb5<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\">Partition<\/td><td class=\"has-text-align-left\" data-align=\"left\">\u5206\u533a\u8868\u7684 Partition<\/td><td class=\"has-text-align-left\" data-align=\"left\">\u6309\u4e1a\u52a1\u7ef4\u5ea6\u5212\u5206\u6570\u636e<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\">\u5411\u91cf\u7d22\u5f15\uff08HNSW \u7b49\uff09<\/td><td class=\"has-text-align-left\" data-align=\"left\">\u65e0\u76f4\u63a5\u5bf9\u5e94<\/td><td class=\"has-text-align-left\" data-align=\"left\">MySQL \u6ca1\u6709\u5411\u91cf\u7d22\u5f15<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\">\u6807\u91cf\u7d22\u5f15<\/td><td class=\"has-text-align-left\" data-align=\"left\">B+ \u6811\u7d22\u5f15<\/td><td class=\"has-text-align-left\" data-align=\"left\">\u52a0\u901f\u6807\u91cf\u5b57\u6bb5\u7684\u67e5\u8be2<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\">Entity<\/td><td class=\"has-text-align-left\" data-align=\"left\">Row<\/td><td class=\"has-text-align-left\" data-align=\"left\">\u4e00\u6761\u6570\u636e\u8bb0\u5f55<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"179\" src=\"https:\/\/eve2333.top\/wp-content\/uploads\/2026\/03\/1774926968-image-1024x179.png\" alt=\"\" class=\"wp-image-1876\" srcset=\"https:\/\/eve2333.top\/wp-content\/uploads\/2026\/03\/1774926968-image-1024x179.png 1024w, https:\/\/eve2333.top\/wp-content\/uploads\/2026\/03\/1774926968-image-300x53.png 300w, https:\/\/eve2333.top\/wp-content\/uploads\/2026\/03\/1774926968-image-768x134.png 768w, https:\/\/eve2333.top\/wp-content\/uploads\/2026\/03\/1774926968-image.png 1057w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<p>\u7528 <code>cat > docker-compose.yml &lt;&lt; 'EOF'<\/code> \u65b9\u5f0f\u5199\u5165\uff0c\u907f\u514d\u76f4\u63a5\u7c98\u8d34\u5e26\u9690\u85cf\u5b57\u7b26\u7684\u5185\u5bb9\u3002\u7528 heredoc \u65b9\u5f0f\u5199\u5165\uff08\u907f\u514d\u7c98\u8d34\u6c61\u67d3\uff09<br>\u542f\u52a8\u540e\uff0c\u8bbf\u95ee <code>http:\/\/localhost:8000<\/code> \u53ef\u4ee5\u6253\u5f00 Attu \u7ba1\u7406\u754c\u9762\uff0c\u76f4\u89c2\u5730\u67e5\u770b Collection\u3001\u6570\u636e\u548c\u7d22\u5f15\u3002<\/p>\n\n\n\n<p> \u5982\u679c\u4f60\u673a\u5668\u4e0a\u90e8\u7f72\u4e86minio\u7b49\u4e1c\u897f\u5360\u7528\u76849000\u7aef\u53e3\uff0c\u8bb0\u5f97\u6539\u4e00\u4e0b<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>ports:\n- \"9002:9000\" \u00a0 <em># \u2190 \u4e3b\u673a 9002 \u6620\u5c04\u5230\u5bb9\u5668 9000<\/em>\n- \"9003:9001\" \u00a0 <em># \u2190 \u4e3b\u673a 9003 \u6620\u5c04\u5230\u5bb9\u5668 9001<\/em><\/code><\/pre>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"588\" src=\"https:\/\/eve2333.top\/wp-content\/uploads\/2026\/03\/1774938387-image-1024x588.png\" alt=\"\" class=\"wp-image-1878\" srcset=\"https:\/\/eve2333.top\/wp-content\/uploads\/2026\/03\/1774938387-image-1024x588.png 1024w, https:\/\/eve2333.top\/wp-content\/uploads\/2026\/03\/1774938387-image-300x172.png 300w, https:\/\/eve2333.top\/wp-content\/uploads\/2026\/03\/1774938387-image-768x441.png 768w, https:\/\/eve2333.top\/wp-content\/uploads\/2026\/03\/1774938387-image-1536x882.png 1536w, https:\/\/eve2333.top\/wp-content\/uploads\/2026\/03\/1774938387-image-2048x1177.png 2048w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<p><\/p>\n\n\n\n<p>\u9996\u5148\u662f\u9879\u76ee\u4f9d\u8d56\uff0c\u9664\u4e86 Milvus \u7684 SDK\uff08\u9009 2.6.6 \u7248\u672c\u662f\u56e0\u4e3a\u5b83\u652f\u6301\u66f4\u7b80\u6d01\u7684 v2 API\uff09\uff0c\u8fd8\u9700\u8981 OkHttp \u6765\u8c03\u7528 SiliconFlow \u7684 Embedding \u63a5\u53e3\uff0c\u4ee5\u53ca Gson \u5904\u7406 JSON \u6570\u636e\u3002\u8fd9\u90e8\u5206\u914d\u7f6e\u6bd4\u8f83\u5e38\u89c4\uff0c\u653e\u5728 pom.xml \u91cc\u5373\u53ef\u3002<\/p>\n\n\n\n<p>\u8fde\u63a5\u4e0a Milvus \u4e4b\u540e\uff0c\u6838\u5fc3\u662f\u8bbe\u8ba1 Collection \u7684 Schema\u3002\u8fd9\u91cc\u6709\u4e2a\u786c\u6027\u7ea6\u675f\uff1a<strong>\u5411\u91cf\u5b57\u6bb5\u7684 dimension \u5fc5\u987b\u8ddf Embedding \u6a21\u578b\u8f93\u51fa\u4e00\u81f4<\/strong>\u3002\u6211\u7528\u7684\u662f Qwen3-Embedding-8B\uff0c\u8f93\u51fa 4096 \u7ef4\uff0c\u6240\u4ee5 schema \u91cc vector \u5b57\u6bb5\u5fc5\u987b\u586b 4096\uff0c\u5426\u5219\u540e\u7eed\u63d2\u5165\u4f1a\u62a5\u9519\u3002\u5b57\u6bb5\u8bbe\u8ba1\u4e0a\uff0c\u9664\u4e86\u4e3b\u952e id\uff08\u5f00\u4e86 autoID \u81ea\u52a8\u751f\u6210\uff09\u548c\u5411\u91cf vector\uff0c\u8fd8\u52a0\u4e86 chunk_text \u5b58\u539f\u6587\uff0cdoc_id \u8ffd\u8e2a\u6587\u6863\u6765\u6e90\uff0ccategory \u7528\u6765\u505a\u5206\u7c7b\u8fc7\u6ee4\u3002VarChar \u7c7b\u578b\u8bb0\u5f97\u6307\u5b9a maxLength\uff0c\u6bd4\u5982 chunk_text \u7ed9 8192 \u8db3\u591f\u5b58\u4e00\u4e2a\u7247\u6bb5\u3002<\/p>\n\n\n\n<p>\u6570\u636e\u63d2\u5165\u9636\u6bb5\uff0c\u5b9e\u9645\u6d41\u7a0b\u662f\u201c\u6587\u6863\u2192\u63d0\u53d6\u2192\u5206\u5757\u2192\u5411\u91cf\u5316\u2192\u5165\u5e93\u201d\u3002Demo \u91cc\u4e3a\u4e86\u6d4b\u8bd5\u65b9\u4fbf\uff0c\u76f4\u63a5\u6a21\u62df\u4e86\u51e0\u6761\u7535\u5546\u6570\u636e\u5e76\u8c03\u7528 API \u751f\u6210\u771f\u5b9e\u5411\u91cf\u3002SDK v2 \u63d2\u5165\u6570\u636e\u662f\u7528 <code>List&lt;JsonObject&gt;<\/code> \u683c\u5f0f\uff0c\u6bcf\u4e2a\u5bf9\u8c61\u4ee3\u8868\u4e00\u884c\u3002\u8fd9\u91cc\u6709\u4e2a\u5bb9\u6613\u56f0\u60d1\u7684\u5730\u65b9\uff1a<strong>\u63d2\u5165\u6210\u529f\u540e\u53bb Attu \u7ba1\u7406\u754c\u9762\u770b\uff0c\u53ef\u80fd\u663e\u793a 0 \u6761\u6570\u636e<\/strong>\u3002\u8fd9\u4e0d\u662f\u6ca1\u63d2\u8fdb\u53bb\uff0c\u800c\u662f\u56e0\u4e3a\u8fd8\u6ca1\u5efa\u7d22\u5f15\u548c\u52a0\u8f7d Collection \u5230\u5185\u5b58\uff0cMilvus \u9ed8\u8ba4\u4e0d\u52a0\u8f7d\u662f\u4e0d\u53ef\u67e5\u4e5f\u4e0d\u53ef\u89c1\u7684\u3002<\/p>\n\n\n\n<p>\u8bf4\u5230\u7d22\u5f15\uff0c\u6570\u636e\u63d2\u5b8c\u540e\u5fc5\u987b\u5efa\u7d22\u5f15\u624d\u80fd\u68c0\u7d22\uff0c\u4e0d\u7136\u5c31\u662f\u66b4\u529b\u641c\u7d22\u3002\u5411\u91cf\u5b57\u6bb5\u6211\u9009\u4e86 <strong>HNSW<\/strong> \u7d22\u5f15\uff0c\u5ea6\u91cf\u65b9\u5f0f\u7528 <strong>COSINE<\/strong>\uff08\u4f59\u5f26\u76f8\u4f3c\u5ea6\uff09\uff0c\u8fd9\u4e24\u4e2a\u53c2\u6570\u8981\u8ddf Embedding \u6a21\u578b\u7684\u7279\u6027\u5339\u914d\u3002HNSW \u7684 <code>M<\/code> \u8bbe\u4e3a 16\uff0c<code>efConstruction<\/code> \u8bbe\u4e3a 256\uff0c\u8fd9\u662f\u5728\u53ec\u56de\u7387\u548c\u5efa\u7d22\u5f15\u901f\u5ea6\u4e4b\u95f4\u505a\u4e2a\u5e73\u8861\u3002\u6807\u91cf\u5b57\u6bb5 category \u52a0\u4e86 TRIE \u7d22\u5f15\uff0c\u65b9\u4fbf\u540e\u9762\u505a\u5b57\u7b26\u4e32\u8fc7\u6ee4\u3002<strong>\u5efa\u5b8c\u7d22\u5f15\u540e\uff0c\u52a1\u5fc5\u8c03\u7528 <code>loadCollection<\/code> \u628a\u6570\u636e\u52a0\u8f7d\u5230\u5185\u5b58<\/strong>\uff0c\u8fd9\u662f Milvus \u7684\u673a\u5236\uff0c\u68c0\u7d22\u662f\u5728\u5185\u5b58\u91cc\u8fdb\u884c\u7684\u3002<\/p>\n\n\n\n<p>\u68c0\u7d22\u90e8\u5206\uff0c\u5148\u628a\u7528\u6237\u95ee\u9898\u5411\u91cf\u5316\uff0c\u7136\u540e\u6784\u9020 SearchReq\u3002\u51e0\u4e2a\u5173\u952e\u53c2\u6570\u8981\u6ce8\u610f\uff1a<code>topK<\/code> \u51b3\u5b9a\u8fd4\u56de\u51e0\u6761\u7ed3\u679c\uff0cRAG \u573a\u666f\u4e00\u822c\u53d6 3~10 \u6761\uff1b<code>searchParams<\/code> \u91cc\u7684 <code>ef<\/code> \u63a7\u5236\u641c\u7d22\u5bbd\u5ea6\uff0c\u4e00\u822c\u662f topK \u7684 4~16 \u500d\uff0c\u8d8a\u5927\u8d8a\u51c6\u4f46\u8d8a\u6162\u3002\u8fd4\u56de\u7ed3\u679c\u91cc\u53ef\u4ee5\u62ff\u5230\u76f8\u4f3c\u5ea6\u5206\u6570\u548c\u4e4b\u524d\u5b9a\u4e49\u7684\u6807\u91cf\u5b57\u6bb5\uff08\u5982 chunk_text\u3001category\uff09\u3002<\/p>\n\n\n\n<p>\u5b9e\u9645\u4f7f\u7528\u4e2d\uff0c\u7eaf\u5411\u91cf\u68c0\u7d22\u6709\u65f6\u5019\u4e0d\u591f\u51c6\uff0c\u6bd4\u5982\u95ee\u201c\u9000\u8d27\u201d\u53ef\u80fd\u4f1a\u641c\u51fa\u201c\u7269\u6d41\u201d\u3002\u8fd9\u65f6\u5019\u53ef\u4ee5\u7528 <strong>\u6df7\u5408\u68c0\u7d22<\/strong>\uff0c\u5728 search \u8bf7\u6c42\u91cc\u52a0 <code>filter<\/code> \u53c2\u6570\u3002\u8bed\u6cd5\u7c7b\u4f3c SQL \u7684 Where \u5b50\u53e5\uff0c\u6bd4\u5982 <code>category == \"return_policy\"<\/code> \u5c31\u80fd\u5f3a\u5236\u53ea\u5728\u9000\u8d27\u653f\u7b56\u91cc\u641c\u3002\u8fd9\u4e2a\u529f\u80fd\u5728\u591a\u79df\u6237\u9694\u79bb\u3001\u6743\u9650\u63a7\u5236\u6216\u8005\u65f6\u6548\u6027\u8fc7\u6ee4\u573a\u666f\u4e0b\u975e\u5e38\u6709\u7528\u3002<\/p>\n\n\n\n<p>\u6700\u540e\u603b\u7ed3\u4e00\u4e0b\u6574\u4e2a\u6d41\u7a0b\u7684\u903b\u8f91\uff1a<strong>\u521b\u5efa Collection\u3001\u63d2\u5165\u6570\u636e\u3001\u5efa\u7d22\u5f15\u5c5e\u4e8e\u79bb\u7ebf\u51c6\u5907\u9636\u6bb5<\/strong>\uff0c\u8fd9\u4e9b\u6570\u636e\u51c6\u5907\u597d\u4e4b\u540e\u53ef\u4ee5\u6301\u4e45\u5316\uff1b<strong>\u52a0\u8f7d Collection\u3001\u6267\u884c\u68c0\u7d22\u5c5e\u4e8e\u5728\u7ebf\u67e5\u8be2\u9636\u6bb5<\/strong>\uff0c\u6bcf\u6b21\u670d\u52a1\u542f\u52a8\u6216\u6570\u636e\u53d8\u66f4\u540e\u53ef\u80fd\u9700\u8981\u91cd\u65b0\u52a0\u8f7d\u3002\u628a\u8fd9\u4e24\u9636\u6bb5\u5206\u5f00\u7406\u89e3\uff0c\u540e\u7eed\u505a\u7cfb\u7edf\u67b6\u6784\u4f1a\u6e05\u6670\u5f88\u591a\u3002<\/p>\n\n\n\n<p><\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">\u5b9e\u9645\u9879\u76ee\u4e2d\u7684\u5173\u952e\u51b3\u7b56<\/h2>\n\n\n\n<p>\u8dd1\u901a\u4e86 demo\uff0c\u63a5\u4e0b\u6765\u804a\u804a\u5b9e\u9645\u9879\u76ee\u4e2d\u4f60\u4f1a\u9047\u5230\u7684\u51e0\u4e2a\u5173\u952e\u51b3\u7b56\u3002\u8fd9\u4e9b\u51b3\u7b56\u6ca1\u6709\u6807\u51c6\u7b54\u6848\uff0c\u53d6\u51b3\u4e8e\u4f60\u7684\u6570\u636e\u91cf\u3001\u6027\u80fd\u8981\u6c42\u548c\u8d44\u6e90\u9650\u5236\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"1\">1. \u7d22\u5f15\u7c7b\u578b\u600e\u4e48\u9009<\/h3>\n\n\n\n<p>\u524d\u9762\u7684\u201c\u7d22\u5f15\u7b97\u6cd5\u5bf9\u6bd4\u201d\u8868\u683c\u5df2\u7ecf\u7ed9\u4e86\u4e00\u4e2a\u5927\u81f4\u7684\u65b9\u5411\uff0c\u8fd9\u91cc\u518d\u7ed9\u4e00\u4e2a\u66f4\u5b9e\u64cd\u7684\u51b3\u7b56\u6d41\u7a0b\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u5148\u95ee\u81ea\u5df1\uff1a\u6570\u636e\u91cf\u6709\u591a\u5927\uff1f\n<ul class=\"wp-block-list\">\n<li>&lt; 10 \u4e07\u6761\uff1a\u76f4\u63a5\u7528 <code>FLAT<\/code>\uff0c\u66b4\u529b\u641c\u7d22\u5c31\u591f\u4e86\uff0c\u7701\u53bb\u8c03\u53c2\u7684\u9ebb\u70e6<\/li>\n\n\n\n<li>10 \u4e07 ~ 500 \u4e07\u6761\uff1a\u4f18\u5148\u9009 <code>HNSW<\/code>\uff0c\u901f\u5ea6\u5feb\u3001\u53ec\u56de\u7387\u9ad8<\/li>\n\n\n\n<li>500 \u4e07 ~ 5000 \u4e07\u6761\uff1a\u770b\u5185\u5b58\u591f\u4e0d\u591f\u3002\u591f\u5c31 <code>HNSW<\/code>\uff0c\u4e0d\u591f\u5c31 <code>IVF_SQ8<\/code>\uff08\u5411\u91cf\u538b\u7f29\u5230\u539f\u6765\u7684 1\/4\uff09<\/li>\n\n\n\n<li>5000 \u4e07\u6761\uff1a\u8003\u8651 <code>DISKANN<\/code>\uff08\u7d22\u5f15\u653e\u78c1\u76d8\uff09\u6216 <code>IVF_PQ<\/code>\uff08\u66f4\u6fc0\u8fdb\u7684\u538b\u7f29\uff09<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li>\u518d\u95ee\u81ea\u5df1\uff1a\u5bf9\u53ec\u56de\u7387\u7684\u8981\u6c42\u6709\u591a\u9ad8\uff1f\n<ul class=\"wp-block-list\">\n<li>RAG \u573a\u666f\u901a\u5e38\u53d6 Top-5 \u5230 Top-10\uff0c\u5bf9\u53ec\u56de\u7387\u7684\u5bb9\u5fcd\u5ea6\u8f83\u9ad8\uff0c<code>HNSW<\/code> \u548c <code>IVF_FLAT<\/code> \u90fd\u80fd\u6ee1\u8db3<\/li>\n\n\n\n<li>\u5982\u679c\u662f\u4eba\u8138\u8bc6\u522b\u3001\u6307\u7eb9\u5339\u914d\u7b49\u5bf9\u7cbe\u5ea6\u8981\u6c42\u6781\u9ad8\u7684\u573a\u666f\uff0c\u53ef\u80fd\u9700\u8981 <code>FLAT<\/code> \u6216\u8005\u628a HNSW \u7684\u53c2\u6570\u8c03\u5f97\u5f88\u5927<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n\n\n\n<p>\u5bf9\u4e8e\u5927\u591a\u6570 RAG \u9879\u76ee\uff0c<code>HNSW<\/code> \u662f\u9ed8\u8ba4\u9009\u62e9\uff0c\u4e0d\u9700\u8981\u7ea0\u7ed3\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"2\">2. \u76f8\u4f3c\u5ea6\u5ea6\u91cf\u600e\u4e48\u9009<\/h3>\n\n\n\n<p>Milvus \u652f\u6301\u4e09\u79cd\u76f8\u4f3c\u5ea6\u5ea6\u91cf\u65b9\u5f0f\uff1a<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><tbody><tr><th class=\"has-text-align-left\" data-align=\"left\">\u5ea6\u91cf\u65b9\u5f0f<\/th><th class=\"has-text-align-left\" data-align=\"left\">\u516c\u5f0f\u76f4\u89c9<\/th><th class=\"has-text-align-left\" data-align=\"left\">\u503c\u57df<\/th><th class=\"has-text-align-left\" data-align=\"left\">\u8d8a\u5927\u8d8a\u76f8\u4f3c\uff1f<\/th><th class=\"has-text-align-left\" data-align=\"left\">\u9002\u7528\u573a\u666f<\/th><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\">COSINE\uff08\u4f59\u5f26\u76f8\u4f3c\u5ea6\uff09<\/td><td class=\"has-text-align-left\" data-align=\"left\">\u8861\u91cf\u4e24\u4e2a\u5411\u91cf\u65b9\u5411\u7684\u5939\u89d2<\/td><td class=\"has-text-align-left\" data-align=\"left\">[-1, 1]<\/td><td class=\"has-text-align-left\" data-align=\"left\">\u662f<\/td><td class=\"has-text-align-left\" data-align=\"left\">\u6587\u672c\u8bed\u4e49\u68c0\u7d22\uff08\u6700\u5e38\u7528\uff09<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\">IP\uff08\u5185\u79ef\uff09<\/td><td class=\"has-text-align-left\" data-align=\"left\">\u8861\u91cf\u4e24\u4e2a\u5411\u91cf\u7684\u65b9\u5411\u548c\u5927\u5c0f<\/td><td class=\"has-text-align-left\" data-align=\"left\">(-\u221e, +\u221e)<\/td><td class=\"has-text-align-left\" data-align=\"left\">\u662f<\/td><td class=\"has-text-align-left\" data-align=\"left\">\u5411\u91cf\u5df2\u5f52\u4e00\u5316\u65f6\u7b49\u4ef7\u4e8e\u4f59\u5f26<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\">L2\uff08\u6b27\u6c0f\u8ddd\u79bb\uff09<\/td><td class=\"has-text-align-left\" data-align=\"left\">\u8861\u91cf\u4e24\u4e2a\u5411\u91cf\u5728\u7a7a\u95f4\u4e2d\u7684\u76f4\u7ebf\u8ddd\u79bb<\/td><td class=\"has-text-align-left\" data-align=\"left\">[0, +\u221e)<\/td><td class=\"has-text-align-left\" data-align=\"left\">\u5426\uff08\u8d8a\u5c0f\u8d8a\u76f8\u4f3c\uff09<\/td><td class=\"has-text-align-left\" data-align=\"left\">\u56fe\u50cf\u68c0\u7d22\u3001\u63a8\u8350\u7cfb\u7edf<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p>\u600e\u4e48\u9009\uff1f\u4e00\u4e2a\u7b80\u5355\u7684\u539f\u5219\uff1a\u770b\u4f60\u7528\u7684 Embedding \u6a21\u578b\u63a8\u8350\u54ea\u79cd\u3002<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u5927\u591a\u6570\u6587\u672c Embedding \u6a21\u578b\uff08\u5305\u62ec Qwen3-Embedding-8B\u3001OpenAI text-embedding-3 \u7b49\uff09\u8f93\u51fa\u7684\u5411\u91cf\u5df2\u7ecf\u505a\u4e86\u5f52\u4e00\u5316\u5904\u7406\uff0c\u7528 <code>COSINE<\/code> \u6216 <code>IP<\/code> \u6548\u679c\u4e00\u6837<\/li>\n\n\n\n<li>\u5982\u679c\u4e0d\u786e\u5b9a\u6a21\u578b\u662f\u5426\u505a\u4e86\u5f52\u4e00\u5316\uff0c\u7528 <code>COSINE<\/code> \u6700\u5b89\u5168\u2014\u2014\u5b83\u4f1a\u81ea\u52a8\u5904\u7406\u5411\u91cf\u957f\u5ea6\u7684\u5dee\u5f02<\/li>\n\n\n\n<li><code>L2<\/code> \u5728\u6587\u672c\u68c0\u7d22\u573a\u666f\u4e2d\u7528\u5f97\u8f83\u5c11\uff0c\u66f4\u591a\u7528\u5728\u56fe\u50cf\u3001\u97f3\u9891\u7b49\u9886\u57df<\/li>\n<\/ul>\n\n\n\n<p>\u672c\u7cfb\u5217\u7edf\u4e00\u4f7f\u7528 <code>COSINE<\/code>\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"3\">3. \u5206\u533a\u7b56\u7565\u8bbe\u8ba1<\/h3>\n\n\n\n<p>Milvus \u7684 Partition \u53ef\u4ee5\u6309\u4e1a\u52a1\u7ef4\u5ea6\u628a\u6570\u636e\u5206\u5f00\u5b58\u50a8\uff0c\u68c0\u7d22\u65f6\u6307\u5b9a Partition \u53ef\u4ee5\u7f29\u5c0f\u641c\u7d22\u8303\u56f4\u3002<\/p>\n\n\n\n<p>\u5e38\u89c1\u7684\u5206\u533a\u7b56\u7565\uff1a<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><tbody><tr><th class=\"has-text-align-left\" data-align=\"left\">\u5206\u533a\u7ef4\u5ea6<\/th><th class=\"has-text-align-left\" data-align=\"left\">\u793a\u4f8b<\/th><th class=\"has-text-align-left\" data-align=\"left\">\u9002\u7528\u573a\u666f<\/th><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\">\u6309\u6587\u6863\u7c7b\u522b<\/td><td class=\"has-text-align-left\" data-align=\"left\"><code>return_policy<\/code>\u3001<code>logistics<\/code>\u3001<code>promotion<\/code><\/td><td class=\"has-text-align-left\" data-align=\"left\">\u77e5\u8bc6\u5e93\u6709\u660e\u786e\u7684\u5206\u7c7b\u4f53\u7cfb<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\">\u6309\u79df\u6237<\/td><td class=\"has-text-align-left\" data-align=\"left\"><code>tenant_001<\/code>\u3001<code>tenant_002<\/code><\/td><td class=\"has-text-align-left\" data-align=\"left\">\u591a\u79df\u6237 SaaS \u7cfb\u7edf<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\">\u6309\u65f6\u95f4<\/td><td class=\"has-text-align-left\" data-align=\"left\"><code>2026_Q1<\/code>\u3001<code>2026_Q2<\/code><\/td><td class=\"has-text-align-left\" data-align=\"left\">\u6570\u636e\u6709\u660e\u663e\u7684\u65f6\u6548\u6027<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p>\u4e0d\u8fc7\uff0c\u5206\u533a\u4e0d\u662f\u5fc5\u987b\u7684\u3002\u5728\u4ee5\u4e0b\u60c5\u51b5\u4e0b\uff0c\u7528\u6807\u91cf\u8fc7\u6ee4\uff08<code>filter<\/code>\uff09\u66ff\u4ee3\u5206\u533a\u66f4\u7b80\u5355\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u5206\u7c7b\u7ef4\u5ea6\u7684\u503c\u5f88\u591a\uff08\u6bd4\u5982\u4e0a\u767e\u4e2a\u7c7b\u522b\uff09\uff0c\u521b\u5efa\u592a\u591a Partition \u4f1a\u589e\u52a0\u7ba1\u7406\u590d\u6742\u5ea6<\/li>\n\n\n\n<li>\u67e5\u8be2\u65f6\u7ecf\u5e38\u9700\u8981\u8de8\u591a\u4e2a\u5206\u7c7b\u68c0\u7d22<\/li>\n\n\n\n<li>\u6570\u636e\u91cf\u4e0d\u5927\uff08&lt; 100 \u4e07\uff09\uff0c\u6807\u91cf\u8fc7\u6ee4\u7684\u6027\u80fd\u5f00\u9500\u53ef\u4ee5\u5ffd\u7565<\/li>\n<\/ul>\n\n\n\n<p>\u4e00\u4e2a\u7ecf\u9a8c\u6cd5\u5219\uff1a\u5982\u679c\u67d0\u4e2a\u8fc7\u6ee4\u6761\u4ef6\u5728 90% \u4ee5\u4e0a\u7684\u67e5\u8be2\u4e2d\u90fd\u4f1a\u7528\u5230\uff0c\u4e14\u503c\u7684\u79cd\u7c7b\u4e0d\u8d85\u8fc7\u51e0\u5341\u4e2a\uff0c\u53ef\u4ee5\u8003\u8651\u7528 Partition\uff1b\u5426\u5219\u7528\u6807\u91cf\u8fc7\u6ee4\u5c31\u591f\u4e86\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"4\">4. \u6570\u636e\u66f4\u65b0\u7b56\u7565<\/h3>\n\n\n\n<p>\u77e5\u8bc6\u5e93\u4e0d\u662f\u4e00\u6210\u4e0d\u53d8\u7684\u2014\u2014\u6587\u6863\u4f1a\u66f4\u65b0\u3001\u4f1a\u5220\u9664\u3001\u4f1a\u65b0\u589e\u3002\u5411\u91cf\u6570\u636e\u5e93\u91cc\u7684\u6570\u636e\u9700\u8981\u548c\u6e90\u6587\u6863\u4fdd\u6301\u540c\u6b65\u3002<\/p>\n\n\n\n<p>Milvus \u76ee\u524d\u4e0d\u652f\u6301\u539f\u5730\u66f4\u65b0\uff08update\uff09\u5355\u6761\u6570\u636e\u7684\u5411\u91cf\u5b57\u6bb5\uff0c\u6240\u4ee5\u66f4\u65b0\u7684\u6807\u51c6\u505a\u6cd5\u662f\u5220\u65e7\u63d2\u65b0\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>importio.milvus.v2.service.vector.request.DeleteReq;\/\/ 1. \u5220\u9664\u65e7\u6570\u636e\uff08\u901a\u8fc7 doc_id \u5b9a\u4f4d\uff09DeleteReq deleteReq =DeleteReq.builder().collectionName(\"customer_service_chunks\").filter(\"doc_id == \\\"doc_return_001\\\"\").build();\nclient.delete(deleteReq);\/\/ 2. \u5bf9\u66f4\u65b0\u540e\u7684\u6587\u6863\u91cd\u65b0\u5206\u5757\u3001\u5411\u91cf\u5316\/\/ 3. \u63d2\u5165\u65b0\u6570\u636e\uff08\u540c\u524d\u9762\u7684\u63d2\u5165\u6d41\u7a0b\uff09<\/code><\/pre>\n\n\n\n<p>\u8fd9\u91cc <code>doc_id<\/code> \u7684\u4f5c\u7528\u5c31\u4f53\u73b0\u51fa\u6765\u4e86\u2014\u2014\u5b83\u662f\u8fde\u63a5\u6e90\u6587\u6863\u548c\u5411\u91cf\u6570\u636e\u5e93\u7684\u7ebd\u5e26\u3002\u5f53\u4e00\u4e2a\u6587\u6863\u66f4\u65b0\u65f6\uff0c\u901a\u8fc7 <code>doc_id<\/code> \u627e\u5230\u8fd9\u4e2a\u6587\u6863\u5bf9\u5e94\u7684\u6240\u6709 chunk\uff0c\u5168\u90e8\u5220\u9664\uff0c\u7136\u540e\u91cd\u65b0\u5206\u5757\u3001\u5411\u91cf\u5316\u3001\u63d2\u5165\u3002<\/p>\n\n\n\n<p>\u5b9e\u9645\u9879\u76ee\u4e2d\u7684\u66f4\u65b0\u7b56\u7565\u901a\u5e38\u662f\u8fd9\u6837\u7684\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>1.\u6e90\u6587\u6863\u53d8\u66f4\u65f6\uff0c\u89e6\u53d1\u4e00\u4e2a\u5f02\u6b65\u4efb\u52a1<\/li>\n\n\n\n<li>2.\u4efb\u52a1\u6839\u636e <code>doc_id<\/code> \u5220\u9664 Milvus \u4e2d\u8be5\u6587\u6863\u7684\u6240\u6709\u65e7 chunk<\/li>\n\n\n\n<li>3.\u5bf9\u65b0\u6587\u6863\u91cd\u65b0\u6267\u884c Tika \u63d0\u53d6 \u2192 \u5206\u5757 \u2192 \u5411\u91cf\u5316 \u2192 \u63d2\u5165 Milvus \u7684\u5b8c\u6574\u6d41\u7a0b<\/li>\n\n\n\n<li>4.\u6574\u4e2a\u8fc7\u7a0b\u5bf9\u7528\u6237\u65e0\u611f\u77e5\uff0c\u68c0\u7d22\u670d\u52a1\u4e0d\u4e2d\u65ad<\/li>\n<\/ol>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"5\">5. \u6027\u80fd\u8c03\u4f18\u7684\u51e0\u4e2a\u5173\u952e\u53c2\u6570<\/h3>\n\n\n\n<p>\u6700\u540e\u6c47\u603b\u4e00\u4e0b\u5f71\u54cd\u6027\u80fd\u7684\u5173\u952e\u53c2\u6570\uff0c\u65b9\u4fbf\u4f60\u5728\u5b9e\u9645\u9879\u76ee\u4e2d\u8c03\u4f18\uff1a<\/p>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"5-1-hnsw\">5.1 HNSW \u7d22\u5f15\u53c2\u6570<\/h4>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><tbody><tr><th class=\"has-text-align-left\" data-align=\"left\">\u53c2\u6570<\/th><th class=\"has-text-align-left\" data-align=\"left\">\u4f5c\u7528<\/th><th class=\"has-text-align-left\" data-align=\"left\">\u63a8\u8350\u503c<\/th><th class=\"has-text-align-left\" data-align=\"left\">\u8c03\u5927<\/th><th class=\"has-text-align-left\" data-align=\"left\">\u8c03\u5c0f<\/th><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\">M<\/td><td class=\"has-text-align-left\" data-align=\"left\">\u6bcf\u4e2a\u5411\u91cf\u7684\u6700\u5927\u8fde\u63a5\u6570<\/td><td class=\"has-text-align-left\" data-align=\"left\">8~32\uff0c\u901a\u5e38 16<\/td><td class=\"has-text-align-left\" data-align=\"left\">\u53ec\u56de\u7387\u2191\uff0c\u5185\u5b58\u2191\uff0c\u5efa\u7d22\u5f15\u901f\u5ea6\u2193<\/td><td class=\"has-text-align-left\" data-align=\"left\">\u5185\u5b58\u2193\uff0c\u53ec\u56de\u7387\u53ef\u80fd\u2193<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\">efConstruction<\/td><td class=\"has-text-align-left\" data-align=\"left\">\u5efa\u7d22\u5f15\u65f6\u7684\u641c\u7d22\u5bbd\u5ea6<\/td><td class=\"has-text-align-left\" data-align=\"left\">128~512\uff0c\u901a\u5e38 256<\/td><td class=\"has-text-align-left\" data-align=\"left\">\u7d22\u5f15\u8d28\u91cf\u2191\uff0c\u5efa\u7d22\u5f15\u901f\u5ea6\u2193<\/td><td class=\"has-text-align-left\" data-align=\"left\">\u5efa\u7d22\u5f15\u901f\u5ea6\u2191\uff0c\u7d22\u5f15\u8d28\u91cf\u2193<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\">ef<\/td><td class=\"has-text-align-left\" data-align=\"left\">\u68c0\u7d22\u65f6\u7684\u641c\u7d22\u5bbd\u5ea6<\/td><td class=\"has-text-align-left\" data-align=\"left\">topK \u7684 4~16 \u500d<\/td><td class=\"has-text-align-left\" data-align=\"left\">\u53ec\u56de\u7387\u2191\uff0c\u68c0\u7d22\u901f\u5ea6\u2193<\/td><td class=\"has-text-align-left\" data-align=\"left\">\u68c0\u7d22\u901f\u5ea6\u2191\uff0c\u53ec\u56de\u7387\u2193<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p>\u4e00\u4e2a\u5b9e\u7528\u7684\u8c03\u53c2\u601d\u8def\uff1a\u5148\u7528\u9ed8\u8ba4\u503c\uff08M=16\uff0cefConstruction=256\uff0cef=topK\u00d78\uff09\u8dd1\u8d77\u6765\uff0c\u7136\u540e\u6839\u636e\u5b9e\u9645\u7684\u53ec\u56de\u7387\u548c\u5ef6\u8fdf\u8868\u73b0\u5fae\u8c03\u3002\u5927\u591a\u6570\u60c5\u51b5\u4e0b\u9ed8\u8ba4\u503c\u5c31\u591f\u7528\u4e86\u3002<\/p>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"5-2-ivf\">5.2 IVF \u7d22\u5f15\u53c2\u6570<\/h4>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><tbody><tr><th class=\"has-text-align-left\" data-align=\"left\">\u53c2\u6570<\/th><th class=\"has-text-align-left\" data-align=\"left\">\u4f5c\u7528<\/th><th class=\"has-text-align-left\" data-align=\"left\">\u63a8\u8350\u503c<\/th><th class=\"has-text-align-left\" data-align=\"left\">\u8c03\u5927<\/th><th class=\"has-text-align-left\" data-align=\"left\">\u8c03\u5c0f<\/th><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\">nlist<\/td><td class=\"has-text-align-left\" data-align=\"left\">\u805a\u7c7b\u7684\u7c07\u6570\u91cf<\/td><td class=\"has-text-align-left\" data-align=\"left\">\u6570\u636e\u91cf\u7684\u5e73\u65b9\u6839\uff08\u5982 100 \u4e07\u6570\u636e\u7528 1024\uff09<\/td><td class=\"has-text-align-left\" data-align=\"left\">\u6bcf\u4e2a\u7c07\u66f4\u5c0f\uff0c\u68c0\u7d22\u66f4\u5feb\uff0c\u4f46\u8bad\u7ec3\u66f4\u6162<\/td><td class=\"has-text-align-left\" data-align=\"left\">\u6bcf\u4e2a\u7c07\u66f4\u5927\uff0c\u68c0\u7d22\u66f4\u6162<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\">nprobe<\/td><td class=\"has-text-align-left\" data-align=\"left\">\u68c0\u7d22\u65f6\u641c\u7d22\u7684\u7c07\u6570\u91cf<\/td><td class=\"has-text-align-left\" data-align=\"left\">nlist \u7684 5%~10%<\/td><td class=\"has-text-align-left\" data-align=\"left\">\u53ec\u56de\u7387\u2191\uff0c\u68c0\u7d22\u901f\u5ea6\u2193<\/td><td class=\"has-text-align-left\" data-align=\"left\">\u68c0\u7d22\u901f\u5ea6\u2191\uff0c\u53ec\u56de\u7387\u2193<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"5-3\">5.3 \u901a\u7528\u5efa\u8bae<\/h4>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u5411\u91cf\u7ef4\u5ea6\u8d8a\u9ad8\uff0c\u68c0\u7d22\u8d8a\u6162\u3001\u5185\u5b58\u5360\u7528\u8d8a\u5927\u3002\u5982\u679c\u4f60\u7684 Embedding \u6a21\u578b\u652f\u6301\u591a\u79cd\u7ef4\u5ea6\u8f93\u51fa\uff08\u6bd4\u5982 Qwen3-Embedding-8B \u652f\u6301 512~4096\uff09\uff0c\u5728\u7cbe\u5ea6\u591f\u7528\u7684\u524d\u63d0\u4e0b\u53ef\u4ee5\u9009\u8f83\u4f4e\u7684\u7ef4\u5ea6<\/li>\n\n\n\n<li>\u6279\u91cf\u63d2\u5165\u6bd4\u9010\u6761\u63d2\u5165\u5feb\u5f97\u591a\uff0c\u5efa\u8bae\u6bcf\u6279 1000~5000 \u6761<\/li>\n\n\n\n<li>\u5982\u679c\u6570\u636e\u91cf\u5f88\u5927\u4f46\u67e5\u8be2 QPS \u4e0d\u9ad8\uff0c\u53ef\u4ee5\u8003\u8651\u7528 <code>DISKANN<\/code> \u628a\u7d22\u5f15\u653e\u78c1\u76d8\uff0c\u8282\u7701\u5185\u5b58<\/li>\n\n\n\n<li>\u5b9a\u671f\u76d1\u63a7\u68c0\u7d22\u5ef6\u8fdf\u548c\u53ec\u56de\u7387\uff0cMilvus \u7684 Attu \u7ba1\u7406\u754c\u9762\u53ef\u4ee5\u770b\u5230\u57fa\u672c\u7684\u6027\u80fd\u6307\u6807<\/li>\n<\/ul>\n\n\n\n<h1 class=\"wp-block-heading\">\u7b2c10\u5c0f\u8282\uff1a\u5411\u91cf\u68c0\u7d22\u7b56\u7565\u4e0e\u53ec\u56de\u4f18\u5316<\/h1>\n\n\n\n<p>\u5047\u8bbe\u4f60\u5728\u7ef4\u62a4\u4e00\u4e2a\u7535\u5546\u5ba2\u670d\u77e5\u8bc6\u5e93\uff0c\u7528\u6237\u95ee\uff1a\u8ba2\u5355\u53f7 2026012345 \u7684\u7269\u6d41\u72b6\u6001\u662f\u4ec0\u4e48\uff1f\u4f60\u628a\u8fd9\u53e5\u8bdd\u5411\u91cf\u5316\u540e\u53bb Milvus \u91cc\u68c0\u7d22\uff0c\u8fd4\u56de\u7684 Top-5 \u7ed3\u679c\u53ef\u80fd\u662f\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u7269\u6d41\u914d\u9001\u65f6\u6548\u8bf4\u660e<\/li>\n\n\n\n<li>\u5982\u4f55\u67e5\u8be2\u8ba2\u5355\u7269\u6d41<\/li>\n\n\n\n<li>\u7269\u6d41\u5f02\u5e38\u5904\u7406\u6d41\u7a0b<\/li>\n\n\n\n<li>\u5feb\u9012\u516c\u53f8\u5408\u4f5c\u5217\u8868<\/li>\n\n\n\n<li>\u8ba2\u5355\u72b6\u6001\u8bf4\u660e<\/li>\n<\/ul>\n\n\n\n<p>\u8fd9\u5c31\u662f\u7eaf\u5411\u91cf\u68c0\u7d22\u7684\u77ed\u677f\uff1a\u5b83\u64c5\u957f\u7406\u89e3\u8bed\u4e49\uff0c\u4f46\u5bf9\u7cbe\u786e\u5173\u952e\u8bcd\u4e0d\u654f\u611f\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"1\">1. \u573a\u666f\u4e00\uff1a\u7cbe\u786e\u5173\u952e\u8bcd\u4e22\u5931<\/h3>\n\n\n\n<p>\u518d\u770b\u4e00\u4e2a\u4f8b\u5b50\u3002\u7528\u6237\u95ee\uff1aiPhone 16 Pro Max \u7684\u9000\u8d27\u653f\u7b56\u662f\u4ec0\u4e48\uff1f<\/p>\n\n\n\n<p>\u5411\u91cf\u68c0\u7d22\u4f1a\u628a\u8fd9\u53e5\u8bdd\u7406\u89e3\u6210\"\u9000\u8d27\u653f\u7b56\"\u7684\u8bed\u4e49\uff0c\u8fd4\u56de\u6240\u6709\u548c\u9000\u8d27\u76f8\u5173\u7684 chunk\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u4e03\u5929\u65e0\u7406\u7531\u9000\u8d27\u8bf4\u660e<\/li>\n\n\n\n<li>\u9000\u8d27\u6d41\u7a0b\u548c\u6ce8\u610f\u4e8b\u9879<\/li>\n\n\n\n<li>\u4e0d\u652f\u6301\u9000\u8d27\u7684\u5546\u54c1\u7c7b\u578b<\/li>\n\n\n\n<li>\u9000\u8d27\u8fd0\u8d39\u627f\u62c5\u89c4\u5219<\/li>\n\n\n\n<li>\u9000\u8d27\u5ba1\u6838\u65f6\u6548<\/li>\n<\/ul>\n\n\n\n<p>\u8fd9\u4e9b chunk \u786e\u5b9e\u90fd\u548c\u9000\u8d27\u6709\u5173\uff0c\u4f46\u7528\u6237\u8981\u7684\u662f iPhone 16 Pro Max \u8fd9\u4e2a\u5177\u4f53\u578b\u53f7\u7684\u9000\u8d27\u653f\u7b56\u3002\u5982\u679c\u77e5\u8bc6\u5e93\u91cc\u6709\u4e00\u6761\u4e13\u95e8\u9488\u5bf9\u8fd9\u4e2a\u578b\u53f7\u7684\u89c4\u5219\uff08\u6bd4\u5982 iPhone 16 Pro Max \u56e0\u5c4f\u5e55\u5b9a\u5236\u4e0d\u652f\u6301\u4e03\u5929\u65e0\u7406\u7531\u9000\u8d27\uff09\uff0c\u5411\u91cf\u68c0\u7d22\u4e0d\u4e00\u5b9a\u80fd\u628a\u5b83\u6392\u5230\u524d\u9762\uff0c\u56e0\u4e3a\u5b83\u66f4\u5173\u6ce8\u9000\u8d27\u8fd9\u4e2a\u8bed\u4e49\uff0c\u800c\u4e0d\u662f iPhone 16 Pro Max \u8fd9\u4e2a\u7cbe\u786e\u5173\u952e\u8bcd\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"2\">2. \u573a\u666f\u4e8c\uff1a\u4e13\u6709\u540d\u8bcd\u548c\u7f29\u5199<\/h3>\n\n\n\n<p>\u7528\u6237\u95ee\uff1aRMA \u6d41\u7a0b\u662f\u4ec0\u4e48\uff1f<\/p>\n\n\n\n<p>RMA\uff08Return Merchandise Authorization\uff0c\u9000\u8d27\u6388\u6743\uff09\u662f\u4e00\u4e2a\u4e13\u6709\u7f29\u5199\u3002\u5411\u91cf\u68c0\u7d22\u53ef\u80fd\u628a\u5b83\u7406\u89e3\u6210\u9000\u8d27\u6d41\u7a0b\u7684\u8bed\u4e49\uff0c\u8fd4\u56de\u4e00\u5806\u901a\u7528\u7684\u9000\u8d27\u8bf4\u660e\uff0c\u4f46\u5982\u679c\u77e5\u8bc6\u5e93\u91cc\u6709\u4e00\u6761\u4e13\u95e8\u8bb2 RMA \u6d41\u7a0b\u7684\u6587\u6863\uff0c\u5173\u952e\u8bcd\u5339\u914d\u80fd\u76f4\u63a5\u547d\u4e2d\uff0c\u800c\u5411\u91cf\u68c0\u7d22\u53ef\u80fd\u628a\u5b83\u6392\u5230\u5f88\u540e\u9762\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"3\">3. \u573a\u666f\u4e09\uff1a\u6570\u5b57\u548c\u7f16\u53f7<\/h3>\n\n\n\n<p>\u7528\u6237\u95ee\uff1a2026 \u5e74\u6625\u8282\u53d1\u8d27\u5b89\u6392\u662f\u4ec0\u4e48\uff1f<\/p>\n\n\n\n<p>\u5411\u91cf\u68c0\u7d22\u4f1a\u628a 2026 \u5e74\u6625\u8282\u7406\u89e3\u6210\u6625\u8282\u53d1\u8d27\u7684\u8bed\u4e49\uff0c\u53ef\u80fd\u8fd4\u56de\u5386\u5e74\u7684\u6625\u8282\u53d1\u8d27\u5b89\u6392\uff082024 \u5e74\u30012025 \u5e74\u30012026 \u5e74\u90fd\u6709\uff09\uff0c\u4f46\u4e0d\u4e00\u5b9a\u4f18\u5148\u8fd4\u56de 2026 \u5e74\u7684\u90a3\u6761\u3002\u5173\u952e\u8bcd\u68c0\u7d22\u80fd\u7cbe\u786e\u5339\u914d 2026 \u8fd9\u4e2a\u6570\u5b57\uff0c\u76f4\u63a5\u547d\u4e2d\u6700\u76f8\u5173\u7684\u7ed3\u679c\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"4\">4. \u5411\u91cf\u68c0\u7d22\u548c\u5173\u952e\u8bcd\u68c0\u7d22\u7684\u4e92\u8865\u5173\u7cfb<\/h3>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><tbody><tr><th class=\"has-text-align-left\" data-align=\"left\">\u7ef4\u5ea6<\/th><th class=\"has-text-align-left\" data-align=\"left\">\u5411\u91cf\u68c0\u7d22<\/th><th class=\"has-text-align-left\" data-align=\"left\">\u5173\u952e\u8bcd\u68c0\u7d22<\/th><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\">\u64c5\u957f\u573a\u666f<\/td><td class=\"has-text-align-left\" data-align=\"left\">\u8bed\u4e49\u7406\u89e3\u3001\u540c\u4e49\u8bcd\u3001\u8de8\u8bed\u8a00\u3001\u610f\u56fe\u5339\u914d<\/td><td class=\"has-text-align-left\" data-align=\"left\">\u7cbe\u786e\u5173\u952e\u8bcd\u3001\u4e13\u6709\u540d\u8bcd\u3001\u6570\u5b57\u7f16\u53f7\u3001\u7f29\u5199<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\">\u5178\u578b query<\/td><td class=\"has-text-align-left\" data-align=\"left\">\u4e70\u4e86\u4e00\u5468\u7684\u4e1c\u897f\u8fd8\u80fd\u9000\u5417\uff08\u540c\u4e49\u8bcd\uff09<\/td><td class=\"has-text-align-left\" data-align=\"left\">\u8ba2\u5355\u53f7 2026012345\uff08\u7cbe\u786e\u5339\u914d\uff09<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\">\u77ed\u677f<\/td><td class=\"has-text-align-left\" data-align=\"left\">\u5bf9\u7cbe\u786e\u5173\u952e\u8bcd\u4e0d\u654f\u611f\uff0c\u5bb9\u6613\u4e22\u5931\u5177\u4f53\u4fe1\u606f<\/td><td class=\"has-text-align-left\" data-align=\"left\">\u65e0\u6cd5\u7406\u89e3\u8bed\u4e49\uff0c\u540c\u4e49\u8bcd\u5339\u914d\u4e0d\u4e0a<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\">\u5e95\u5c42\u539f\u7406<\/td><td class=\"has-text-align-left\" data-align=\"left\">\u628a\u6587\u672c\u8f6c\u6210\u5411\u91cf\uff0c\u8ba1\u7b97\u8bed\u4e49\u76f8\u4f3c\u5ea6<\/td><td class=\"has-text-align-left\" data-align=\"left\">\u7edf\u8ba1\u8bcd\u9891\u548c\u6587\u6863\u9891\u7387\uff0c\u8ba1\u7b97\u5173\u952e\u8bcd\u91cd\u8981\u6027<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p>\u5b83\u4eec\u4e0d\u662f\u8c01\u66ff\u4ee3\u8c01\u7684\u5173\u7cfb\uff0c\u800c\u662f\u4e92\u8865\u7684\u3002\u7406\u60f3\u7684\u68c0\u7d22\u7b56\u7565\u662f\u628a\u4e24\u8005\u7ed3\u5408\u8d77\u6765\u2014\u2014\u7528\u5411\u91cf\u68c0\u7d22\u7406\u89e3\u8bed\u4e49\uff0c\u7528\u5173\u952e\u8bcd\u68c0\u7d22\u8865\u5145\u7cbe\u786e\u5339\u914d\uff0c\u53d6\u957f\u8865\u77ed\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">BM25\uff08Best Matching 25\uff09\u662f\u4e00\u4e2a\u7ecf\u5178\u7684\u5173\u952e\u8bcd\u68c0\u7d22\u7b97\u6cd5<\/h3>\n\n\n\n<p>BM25 \u4e0d\u9700\u8981\u7406\u89e3\u8bed\u4e49\uff0c\u5b83\u53ea\u770b\u4e09\u4e2a\u6838\u5fc3\u56e0\u7d20\uff1a<\/p>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"2-1-tf\">2.1 \u8bcd\u9891\uff08TF\uff09\uff1a\u51fa\u73b0\u8d8a\u591a\u8d8a\u76f8\u5173\uff0c\u4f46\u6709\u4e0a\u9650<\/h4>\n\n\n\n<p>\u5982\u679c\u4e00\u4e2a\u8bcd\u5728\u6587\u6863\u91cc\u51fa\u73b0\u5f97\u8d8a\u591a\uff0c\u8bf4\u660e\u8fd9\u4e2a\u6587\u6863\u548c\u8fd9\u4e2a\u8bcd\u8d8a\u76f8\u5173\u3002\u6bd4\u5982\u7528\u6237\u641c\u9000\u8d27\uff0c\u4e00\u4e2a\u6587\u6863\u91cc\u9000\u8d27\u51fa\u73b0\u4e86 10 \u6b21\uff0c\u53e6\u4e00\u4e2a\u6587\u6863\u91cc\u53ea\u51fa\u73b0\u4e86 1 \u6b21\uff0c\u524d\u8005\u5927\u6982\u7387\u66f4\u76f8\u5173\u3002<\/p>\n\n\n\n<p>\u4f46\u8fd9\u91cc\u6709\u4e2a\u95ee\u9898\uff1a\u5982\u679c\u4e00\u4e2a\u6587\u6863\u91cc\u9000\u8d27\u51fa\u73b0\u4e86 100 \u6b21\uff0c\u662f\u4e0d\u662f\u5c31\u6bd4\u51fa\u73b0 10 \u6b21\u7684\u6587\u6863\u76f8\u5173 10 \u500d\uff1f\u4e0d\u4e00\u5b9a\u3002\u53ef\u80fd\u53ea\u662f\u8fd9\u4e2a\u6587\u6863\u6bd4\u8f83\u5570\u55e6\uff0c\u6216\u8005\u662f\u673a\u5668\u751f\u6210\u7684\u5783\u573e\u5185\u5bb9\u3002\u6240\u4ee5 BM25 \u5bf9\u8bcd\u9891\u505a\u4e86\u9971\u548c\u5904\u7406\u2014\u2014\u51fa\u73b0\u6b21\u6570\u4ece 1 \u589e\u52a0\u5230 10\uff0c\u5206\u6570\u6da8\u5f97\u5feb\uff1b\u4ece 10 \u589e\u52a0\u5230 100\uff0c\u5206\u6570\u6da8\u5f97\u6162\uff1b\u518d\u5f80\u4e0a\u57fa\u672c\u4e0d\u6da8\u4e86\u3002<\/p>\n\n\n\n<p>\u7528\u4e00\u53e5\u8bdd\u6982\u62ec\uff1a<strong>\u51fa\u73b0\u8d8a\u591a\u8d8a\u76f8\u5173\uff0c\u4f46\u6709\u4e0a\u9650\uff0c\u907f\u514d\u957f\u6587\u6863\u5237\u8bcd\u5360\u4fbf\u5b9c\u3002<\/strong><\/p>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"2-2-idf\">2.2 \u9006\u6587\u6863\u9891\u7387\uff08IDF\uff09\uff1a\u8d8a\u7a00\u6709\u7684\u8bcd\u8d8a\u6709\u533a\u5206\u5ea6<\/h4>\n\n\n\n<p>\u5982\u679c\u4e00\u4e2a\u8bcd\u5728\u6240\u6709\u6587\u6863\u91cc\u90fd\u5f88\u5e38\u89c1\uff08\u6bd4\u5982\uff1a\u7684\u3001\u662f\u3001\u6709\uff09\uff0c\u90a3\u5b83\u6ca1\u4ec0\u4e48\u533a\u5206\u5ea6\uff0c\u51fa\u73b0\u4e86\u4e5f\u4e0d\u80fd\u8bf4\u660e\u6587\u6863\u548c\u67e5\u8be2\u76f8\u5173\u3002\u53cd\u8fc7\u6765\uff0c\u5982\u679c\u4e00\u4e2a\u8bcd\u5f88\u7a00\u6709\uff08\u6bd4\u5982\uff1aiPhone 16 Pro Max\u3001RMA\u3001\u8ba2\u5355\u53f7 2026012345\uff09\uff0c\u90a3\u5b83\u51fa\u73b0\u5728\u54ea\u4e2a\u6587\u6863\u91cc\uff0c\u54ea\u4e2a\u6587\u6863\u5c31\u5f88\u53ef\u80fd\u662f\u7528\u6237\u8981\u627e\u7684\u3002<\/p>\n\n\n\n<p>BM25 \u7528\u9006\u6587\u6863\u9891\u7387\uff08Inverse Document Frequency\uff0cIDF\uff09\u6765\u8861\u91cf\u4e00\u4e2a\u8bcd\u7684\u7a00\u6709\u7a0b\u5ea6\u3002\u8ba1\u7b97\u65b9\u5f0f\u662f\uff1a\u770b\u8fd9\u4e2a\u8bcd\u5728\u591a\u5c11\u4e2a\u6587\u6863\u91cc\u51fa\u73b0\u8fc7\uff0c\u51fa\u73b0\u5f97\u8d8a\u5c11\uff0cIDF \u8d8a\u9ad8\uff0c\u6743\u91cd\u8d8a\u5927\u3002<\/p>\n\n\n\n<p>\u7528\u4e00\u53e5\u8bdd\u6982\u62ec\uff1a<strong>\u8d8a\u7a00\u6709\u7684\u8bcd\u8d8a\u6709\u533a\u5206\u5ea6\uff0c\u8d8a\u80fd\u5e2e\u4f60\u627e\u5230\u76ee\u6807\u6587\u6863\u3002<\/strong><\/p>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"2-3\">2.3 \u6587\u6863\u957f\u5ea6\u5f52\u4e00\u5316\uff1a\u957f\u6587\u6863\u4e0d\u80fd\u5360\u4fbf\u5b9c<\/h4>\n\n\n\n<p>\u5982\u679c\u4e00\u4e2a\u6587\u6863\u5f88\u957f\uff08\u6bd4\u5982 5000 \u5b57\uff09\uff0c\u53e6\u4e00\u4e2a\u6587\u6863\u5f88\u77ed\uff08\u6bd4\u5982 500 \u5b57\uff09\uff0c\u957f\u6587\u6863\u91cc\u51fa\u73b0\u67e5\u8be2\u8bcd\u7684\u6982\u7387\u5929\u7136\u66f4\u9ad8\u3002\u4f46\u8fd9\u4e0d\u4ee3\u8868\u957f\u6587\u6863\u5c31\u66f4\u76f8\u5173\u2014\u2014\u53ef\u80fd\u53ea\u662f\u56e0\u4e3a\u5b83\u5e9f\u8bdd\u591a\u3002<\/p>\n\n\n\n<p>BM25 \u4f1a\u5bf9\u6587\u6863\u957f\u5ea6\u505a\u5f52\u4e00\u5316\uff1a\u5982\u679c\u4e00\u4e2a\u6587\u6863\u6bd4\u5e73\u5747\u957f\u5ea6\u957f\uff0c\u5b83\u7684\u5206\u6570\u4f1a\u88ab\u6253\u6298\uff1b\u5982\u679c\u6bd4\u5e73\u5747\u957f\u5ea6\u77ed\uff0c\u5206\u6570\u4f1a\u88ab\u63d0\u5347\u3002\u8fd9\u6837\u957f\u6587\u6863\u548c\u77ed\u6587\u6863\u5c31\u7ad9\u5728\u540c\u4e00\u8d77\u8dd1\u7ebf\u4e0a\u4e86\u3002<\/p>\n\n\n\n<p>\u7528\u4e00\u53e5\u8bdd\u6982\u62ec\uff1a<strong>\u957f\u6587\u6863\u4e0d\u80fd\u56e0\u4e3a\u5757\u5934\u5927\u5c31\u5360\u4fbf\u5b9c\uff0c\u8981\u6309\u957f\u5ea6\u5f52\u4e00\u5316\u3002<\/strong><\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<p>BM25 \u64c5\u957f\u7cbe\u786e\u5339\u914d\uff0c\u5411\u91cf\u68c0\u7d22\u64c5\u957f\u8bed\u4e49\u7406\u89e3\u3002\u6240\u4ee5\u5b9e\u9645 RAG \u7cfb\u7edf\u4e2d\uff0c\u901a\u5e38\u4f1a\u628a\u4e24\u8005\u7ed3\u5408\u8d77\u6765\uff0c\u8fd9\u5c31\u662f\u201c\u6df7\u5408\u68c0\u7d22\u201d\uff08Hybrid Search\uff09\u3002<\/p>\n\n\n\n<p>Milvus \u4ece 2.5 \u7248\u672c\u5f00\u59cb\u5185\u7f6e\u4e86\u5168\u6587\u68c0\u7d22\u80fd\u529b\uff0c\u652f\u6301 BM25 \u7b97\u6cd5\u3002\u4f60\u53ef\u4ee5\u5728\u521b\u5efa Collection \u65f6\u6307\u5b9a\u4e00\u4e2a VarChar \u5b57\u6bb5\u7528\u4e8e\u5168\u6587\u68c0\u7d22\uff0cMilvus \u4f1a\u81ea\u52a8\u5bf9\u8fd9\u4e2a\u5b57\u6bb5\u505a\u5206\u8bcd\u548c\u5012\u6392\u7d22\u5f15\uff0c\u652f\u6301 BM25 \u68c0\u7d22\u3002<\/p>\n\n\n\n<p>\u5982\u679c\u4f60\u7528\u7684 Milvus \u7248\u672c\u4f4e\u4e8e 2.5\uff0c\u6216\u8005\u5bf9\u4e2d\u6587\u5206\u8bcd\u6709\u66f4\u9ad8\u8981\u6c42\uff0c\u4e5f\u53ef\u4ee5\u7528\u5916\u90e8\u65b9\u6848\u2014\u2014\u6bd4\u5982\u7528 Elasticsearch \u505a\u5173\u952e\u8bcd\u68c0\u7d22\uff0cMilvus \u505a\u5411\u91cf\u68c0\u7d22\uff0c\u5e94\u7528\u5c42\u628a\u4e24\u8def\u7ed3\u679c\u878d\u5408\u8d77\u6765\u3002\u8fd9\u79cd\u65b9\u6848\u67b6\u6784\u590d\u6742\u4e00\u4e9b\uff0c\u4f46\u5168\u6587\u68c0\u7d22\u80fd\u529b\u66f4\u5f3a\u3002\u6211\u4eec\u4f7f\u7528Milvus\u7684\u539f\u751f\u65b9\u6848\uff0c\u964d\u4f4e\u73af\u5883\u642d\u5efa\u6210\u672c\u3002<\/p>\n\n\n\n<p>ES \u8d1f\u8d23\u5173\u952e\u8bcd\u68c0\u7d22\uff0cMilvus \u8d1f\u8d23\u5411\u91cf\u68c0\u7d22\uff0c\u5e94\u7528\u5c42\u505a\u7ed3\u679c\u878d\u5408\u3002<br>\u4f18\u70b9\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>ES \u7684\u5168\u6587\u68c0\u7d22\u80fd\u529b\u6210\u719f\u5f3a\u5927<\/li>\n\n\n\n<li>\u4e2d\u6587\u5206\u8bcd\u751f\u6001\u597d\uff08IK \u5206\u8bcd\u5668\u3001HanLP \u7b49\uff09<\/li>\n\n\n\n<li>\u67e5\u8be2\u8bed\u6cd5\u4e30\u5bcc\uff0c\u652f\u6301\u590d\u6742\u7684\u5e03\u5c14\u67e5\u8be2\u3001\u77ed\u8bed\u67e5\u8be2\u3001\u540c\u4e49\u8bcd\u6269\u5c55\u7b49<\/li>\n\n\n\n<li>\u9002\u5408\u5df2\u6709 ES \u57fa\u7840\u8bbe\u65bd\u7684\u56e2\u961f<\/li>\n<\/ul>\n\n\n\n<p>\u7f3a\u70b9\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u9700\u8981\u7ef4\u62a4\u4e24\u5957\u7cfb\u7edf\uff0c\u8fd0\u7ef4\u590d\u6742\u5ea6\u9ad8<\/li>\n\n\n\n<li>\u6570\u636e\u53cc\u5199\u5e26\u6765\u4e00\u81f4\u6027\u95ee\u9898\uff08\u5199\u5165 Milvus \u6210\u529f\u4f46\u5199\u5165 ES \u5931\u8d25\u600e\u4e48\u529e\uff1f\uff09<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u5927\u591a\u6570 RAG \u573a\u666f\u7528 Milvus \u539f\u751f\u65b9\u6848\u5c31\u591f\u4e86\uff0c\u67b6\u6784\u7b80\u5355\uff0c\u6210\u672c\u4f4e<\/li>\n\n\n\n<li>\u5982\u679c\u5bf9\u4e2d\u6587\u5206\u8bcd\u6709\u9ad8\u8981\u6c42\uff08\u6bd4\u5982\u9700\u8981\u81ea\u5b9a\u4e49\u8bcd\u5178\u3001\u540c\u4e49\u8bcd\u6269\u5c55\uff09\uff0c\u518d\u8003\u8651 ES + Milvus<\/li>\n\n\n\n<li>\u5982\u679c\u5df2\u6709 ES \u57fa\u7840\u8bbe\u65bd\uff0c\u4e14\u56e2\u961f\u5bf9 ES \u5f88\u719f\u6089\uff0c\u53ef\u4ee5\u8003\u8651\u53cc\u7cfb\u7edf\u65b9\u6848<\/li>\n\n\n\n<li>\u5982\u679c\u9700\u8981\u590d\u6742\u7684\u5168\u6587\u68c0\u7d22\u8bed\u6cd5\uff08\u5e03\u5c14\u67e5\u8be2\u3001\u77ed\u8bed\u67e5\u8be2\u3001\u805a\u5408\u7b49\uff09\uff0cES + Milvus \u66f4\u5408\u9002<\/li>\n<\/ul>\n\n\n\n<p><strong>\u6df7\u5408\u68c0\u7d22\u5c31\u662f\u628a\u6587\u79d1\u751f\u548c\u7406\u79d1\u751f\u7ec4\u5408\u8d77\u6765\uff0c\u65e2\u4fdd\u8bc1\u80fd\u7406\u89e3\u6a21\u7cca\u7684\u610f\u56fe\uff0c\u53c8\u4fdd\u8bc1\u4e0d\u4f1a\u6f0f\u6389\u7cbe\u51c6\u7684\u5173\u952e\u8bcd\u3002\u800c\u5e76\u884c\u5904\u7406\u5219\u662f\u4e3a\u4e86\u7701\u65f6\u95f4\uff1a\u8ba9\u8fd9\u4e24\u4e2a\u4eba\u540c\u65f6\u53bb\u5e93\u91cc\u627e\u8d44\u6599\uff0c\u800c\u4e0d\u662f\u4e00\u4e2a\u627e\u5b8c\u53e6\u4e00\u4e2a\u518d\u627e\u3002<\/strong><\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">\u4e8c\u3001 \u6309\u65f6\u95f4\u8f74\u7684\u6b65\u9aa4\u62c6\u89e3<\/h3>\n\n\n\n<h4 class=\"wp-block-heading\">1. \u53d1\u8d77\u8bf7\u6c42 (Query)<\/h4>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u6700\u5de6\u4fa7\u7684<strong>\u7528\u6237<\/strong>\u8f93\u5165\u4e86\u4e00\u4e2a\u95ee\u9898\uff1aQuery: \"\u9000\u8d27\u6d41\u7a0b\"\u3002\u8fd9\u4e2a\u8bf7\u6c42\u540c\u65f6\u53d1\u9001\u7ed9\u4e86\u540e\u7aef\u7684\u4e24\u4e2a\u68c0\u7d22\u6a21\u5757\u3002<\/li>\n<\/ul>\n\n\n\n<h4 class=\"wp-block-heading\">2. \u5e76\u884c\u68c0\u7d22\u9636\u6bb5 (\u56fe\u4e2d\u7c97\u9ed1\u6846 par \u90e8\u5206)<\/h4>\n\n\n\n<p>par \u4ee3\u8868 Parallel\uff08\u5e76\u884c\uff09\u3002\u7cfb\u7edf\u5206\u5175\u4e24\u8def\uff0c<strong>\u540c\u65f6<\/strong>\u8fdb\u884c\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u4e0a\u8def\uff1a\u5411\u91cf\u68c0\u7d22 (\u8bed\u4e49\u7ef4\u5ea6)<\/strong>\n<ol class=\"wp-block-list\">\n<li><strong>\u67e5\u8be2\u8fdb\u5165\uff1a<\/strong> \u6536\u5230\u201c\u9000\u8d27\u6d41\u7a0b\u201d\u3002<\/li>\n\n\n\n<li><strong>Embedding \u7f16\u7801\uff1a<\/strong> \u8fd9\u662fAI\u7684\u6838\u5fc3\u64cd\u4f5c\u3002\u628a\u201c\u9000\u8d27\u6d41\u7a0b\u201d\u8fd9\u56db\u4e2a\u5b57\uff0c\u901a\u8fc7\u5927\u6a21\u578b\u8f6c\u5316\u6210\u4e00\u4e32\u957f\u957f\u7684\u6570\u5b57\uff08\u5411\u91cf\uff09\uff0c\u8fd9\u4e32\u6570\u5b57\u4ee3\u8868\u4e86\u8fd9\u53e5\u8bdd\u7684\u201c\u8bed\u4e49\u7279\u5f81\u201d\u3002<\/li>\n\n\n\n<li><strong>ANN \u641c\u7d22 (\u53bb Milvus \u6570\u636e\u5e93)\uff1a<\/strong> ANN\u6307\u201c\u8fd1\u4f3c\u6700\u8fd1\u90bb\u201d\u3002\u5e26\u7740\u8fd9\u4e32\u6570\u5b57\u53bb\u5411\u91cf\u6570\u636e\u5e93\uff08Milvus\uff09\u91cc\u6bd4\u5bf9\uff0c\u627e\u51fa\u548c\u5b83\u8ddd\u79bb\u6700\u8fd1\u3001\u957f\u5f97\u6700\u50cf\u7684\u5176\u4ed6\u5411\u91cf\u6570\u636e\u3002<\/li>\n\n\n\n<li><strong>\u8fd4\u56de\u7ed3\u679c\uff1a<\/strong> \u62ff\u5230**\u201c\u8bed\u4e49\u76f8\u4f3c\u7ed3\u679c\u201d**\uff08\u6bd4\u5982\u5305\u542b\u201c\u9000\u6362\u8d27\u201d\u3001\u201c\u552e\u540e\u670d\u52a1\u201d\u7684\u6587\u6863\u7247\u6bb5\uff09\u3002<\/li>\n<\/ol>\n<\/li>\n\n\n\n<li><strong>\u4e0b\u8def\uff1aBM25\u68c0\u7d22 (\u8bcd\u6c47\u7ef4\u5ea6)<\/strong>\n<ol class=\"wp-block-list\">\n<li><strong>\u67e5\u8be2\u8fdb\u5165\uff1a<\/strong> \u6536\u5230\u201c\u9000\u8d27\u6d41\u7a0b\u201d\u3002<\/li>\n\n\n\n<li><strong>\u5206\u8bcd + TF-IDF\uff1a<\/strong> \u628a\u53e5\u5b50\u5207\u5f00\uff0c\u6bd4\u5982\u5207\u6210\u201c\u9000\u8d27\u201d\u548c\u201c\u6d41\u7a0b\u201d\u3002\u7136\u540e\u8bc4\u4f30\u54ea\u4e2a\u8bcd\u66f4\u91cd\u8981\uff08TF-IDF\u7b97\u6cd5\uff09\u3002<\/li>\n\n\n\n<li><strong>\u5168\u6587\u68c0\u7d22 (\u53bb Milvus\/\u5e95\u5c42\u6570\u636e\u5e93)\uff1a<\/strong> \u62ff\u7740\u8fd9\u4e24\u4e2a\u8bcd\uff0c\u53bb\u6570\u636e\u5e93\u7684\u201c\u5012\u6392\u7d22\u5f15\u201d\u91cc\u627e\uff0c\u54ea\u4e9b\u6587\u7ae0\u91cc\u7cbe\u786e\u5305\u542b\u4e86\u8fd9\u4e24\u4e2a\u8bcd\u3002<\/li>\n\n\n\n<li><strong>\u8fd4\u56de\u7ed3\u679c\uff1a<\/strong> \u62ff\u5230**\u201c\u5173\u952e\u8bcd\u5339\u914d\u7ed3\u679c\u201d**\u3002<\/li>\n<\/ol>\n<\/li>\n<\/ul>\n\n\n\n<h4 class=\"wp-block-heading\">3. \u7ed3\u679c\u5408\u5e76\u4e0e\u91cd\u6392\u9636\u6bb5 (RRF \u878d\u5408)<\/h4>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u4ea4\u5377\uff1a<\/strong> \u4e0a\u8def\u7684\u5411\u91cf\u68c0\u7d22\u4ea4\u51fa\u4e86 <strong>\u201c\u7ed3\u679c\u96c6 A\u201d<\/strong>\uff0c\u4e0b\u8def\u7684BM25\u4ea4\u51fa\u4e86 <strong>\u201c\u7ed3\u679c\u96c6 B\u201d<\/strong>\u3002\u8fd9\u4e24\u4efd\u7b54\u5377\u90fd\u63d0\u4ea4\u7ed9\u4e86\u6700\u53f3\u4fa7\u7684 <strong>RRF\u878d\u5408<\/strong> \u6a21\u5757\u3002<\/li>\n\n\n\n<li><strong>RRF \u6392\u540d\u878d\u5408 (\u6838\u5fc3\u7b97\u6cd5)\uff1a<\/strong> RRF \u5168\u79f0\u662f <em>Reciprocal Rank Fusion<\/em>\uff08\u5012\u6570\u6392\u540d\u878d\u5408\uff09\u3002\n<ul class=\"wp-block-list\">\n<li>\u4e3a\u4ec0\u4e48\u8981\u878d\u5408\uff1f\u56e0\u4e3aA\u96c6\u5408\u662f\u6309\u201c\u8bed\u4e49\u76f8\u4f3c\u5ea6\u5206\u6570\u201d\u6392\u7684\uff0cB\u96c6\u5408\u662f\u6309\u201c\u5173\u952e\u8bcd\u5339\u914d\u5206\u6570\u201d\u6392\u7684\uff0c<strong>\u4e24\u5957\u5206\u6570\u4f53\u7cfb\u4e0d\u4e00\u6837\uff0c\u6ca1\u6cd5\u76f4\u63a5\u6bd4\u5927\u5c0f<\/strong>\u3002<\/li>\n\n\n\n<li>RRF \u600e\u4e48\u505a\uff1f\u5b83\u4e0d\u770b\u7edd\u5bf9\u5206\u6570\uff0c\u53ea\u770b<strong>\u540d\u6b21<\/strong>\u3002\u5982\u679c\u4e00\u7bc7\u6587\u7ae0\u5728A\u96c6\u5408\u6392\u7b2c1\uff0c\u5728B\u96c6\u5408\u6392\u7b2c2\uff0c\u7efc\u5408\u8d77\u6765\u5b83\u80af\u5b9a\u662f\u4e2a\u597d\u7ed3\u679c\uff1b\u5982\u679c\u6587\u7ae0\u53ea\u5728A\u6392\u7b2c1\uff0c\u5728B\u91cc\u538b\u6839\u6ca1\u51fa\u73b0\uff0c\u90a3\u5b83\u7684\u7efc\u5408\u6392\u540d\u5c31\u4f1a\u5f80\u540e\u9760\u3002<\/li>\n\n\n\n<li><strong>\u4e00\u53e5\u8bdd\u89e3\u91caRRF\uff1a<\/strong> \u7efc\u5408\u8003\u91cf\u4e24\u4e2a\u6392\u884c\u699c\uff0c\u5728\u4e24\u4e2a\u699c\u5355\u91cc\u6392\u540d\u90fd\u9760\u524d\u7684\uff0c\u6700\u7ec8\u6392\u540d\u5c31\u9ad8\u3002<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n\n\n\n<h4 class=\"wp-block-heading\">4. \u8fd4\u56de\u6700\u7ec8\u7ed3\u679c<\/h4>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u878d\u5408\u6a21\u5757\u8ba1\u7b97\u5b8c\u6bd5\u540e\uff0c\u622a\u53d6\u6392\u540d\u6700\u9760\u524d\u7684 K \u4e2a\u7ed3\u679c\uff08<strong>Top-K \u7efc\u5408\u7ed3\u679c<\/strong>\uff09\uff0c\u6cbf\u7740\u6700\u4e0b\u65b9\u84dd\u8272\u7684\u865a\u7ebf\uff0c\u76f4\u63a5\u8fd4\u56de\u7ed9\u7528\u6237\u3002<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">\u4e09\u3001 \u603b\u7ed3\uff1a\u8fd9\u4e2a\u6d41\u7a0b\u9ad8\u7ea7\u5728\u54ea\u91cc\uff1f<\/h3>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u53ec\u56de\u7387\u6781\u9ad8\uff08\u627e\u5f97\u5168\uff09\uff1a<\/strong> \u540c\u4e49\u8bcd\u548c\u9519\u522b\u5b57\u4ea4\u7ed9\u5411\u91cf\uff0c\u4e13\u6709\u540d\u8bcd\u548c\u7f16\u53f7\u4ea4\u7ed9BM25\uff0c\u53cc\u7ba1\u9f50\u4e0b\uff0c\u51e0\u4e4e\u4e0d\u4f1a\u6f0f\u6389\u4efb\u4f55\u76f8\u5173\u7684\u53c2\u8003\u8d44\u6599\u3002<\/li>\n\n\n\n<li><strong>\u6027\u80fd\u6781\u4f73\uff08\u901f\u5ea6\u5feb\uff09\uff1a<\/strong> \u5229\u7528 par \u5e76\u53d1\u673a\u5236\uff0c\u603b\u8017\u65f6\u53ea\u53d6\u51b3\u4e8e\u4e24\u8def\u68c0\u7d22\u4e2d\u8f83\u6162\u7684\u90a3\u4e00\u4e2a\uff0c\u800c\u4e0d\u662f\u4e24\u8005\u7684\u8017\u65f6\u76f8\u52a0\u3002<\/li>\n\n\n\n<li><strong>\u6392\u5e8f\u79d1\u5b66\uff08\u6392\u5f97\u51c6\uff09\uff1a<\/strong> \u6ca1\u6709\u751f\u786c\u5730\u62fc\u63a5\u7ed3\u679c\uff0c\u800c\u662f\u4f7f\u7528\u4e1a\u754c\u516c\u8ba4\u6709\u6548\u7684 RRF \u7b97\u6cd5\u8fdb\u884c\u540d\u6b21\u91cd\u6392\uff0c\u786e\u4fdd\u5448\u73b0\u7ed9\u7528\u6237\u7684 Top-K \u662f\u8d28\u91cf\u6700\u9ad8\u7684\u53c2\u8003\u4fe1\u606f\u3002<\/li>\n<\/ol>\n\n\n\n<p><strong>\u76ee\u524d\u4e1a\u754c\u6700\u5148\u8fdb\u7684 RAG\uff08\u68c0\u7d22\u589e\u5f3a\u751f\u6210\uff09\u7cfb\u7edf\uff0c\u5728\u201c\u6587\u6863\u68c0\u7d22\u201d\u8fd9\u4e00\u6b65\uff0c\u57fa\u672c\u91c7\u7528\u7684\u90fd\u662f\u56fe\u4e0a\u753b\u7684\u8fd9\u5957\u201c\u5411\u91cf+BM25+RRF\u91cd\u6392\u201d\u7684\u6807\u51c6\u67b6\u6784\u3002<\/strong><\/p>\n\n\n\n<p>\u5206\u6570\u878d\u5408\u7684\u96be\u9898\uff1a\u4e24\u79cd\u5206\u6570\u4e0d\u5728\u540c\u4e00\u4e2a\u5c3a\u5ea6\u4e0a\uff0c\u5411\u91cf\u68c0\u7d22\u8fd4\u56de\u7684\u662f\u4f59\u5f26\u76f8\u4f3c\u5ea6\uff080~1 \u4e4b\u95f4\uff09\uff0cBM25 \u8fd4\u56de\u7684\u662f\u76f8\u5173\u6027\u5206\u6570\uff080~\u6b63\u65e0\u7a77\uff09\uff0c\u4e24\u8005\u7684\u503c\u57df\u4e0d\u4e00\u6837\uff0c\u4e0d\u80fd\u76f4\u63a5\u76f8\u52a0\u3002\u4f60\u53ef\u80fd\u4f1a\u60f3\u5230\u505a\u5f52\u4e00\u5316\u2014\u2014\u628a\u4e24\u79cd\u5206\u6570\u90fd\u6620\u5c04\u5230 0~1 \u4e4b\u95f4\uff0c\u7136\u540e\u518d\u76f8\u52a0\u6216\u52a0\u6743\u5e73\u5747\u3002\u4f46\u8fd9\u4e5f\u6709\u95ee\u9898\uff1a\u5982\u679c\u67d0\u4e00\u8def\u68c0\u7d22\u7684\u5206\u6570\u5206\u5e03\u5f88\u96c6\u4e2d\uff08\u6bd4\u5982\u90fd\u5728 0.8~0.9 \u4e4b\u95f4\uff09\uff0c\u5f52\u4e00\u5316\u540e\u4f1a\u628a\u5fae\u5c0f\u7684\u5dee\u5f02\u653e\u5927\uff1b\u5982\u679c\u5206\u6570\u5206\u5e03\u5f88\u5206\u6563\uff08\u6bd4\u5982 0.1~0.9 \u90fd\u6709\uff09\uff0c\u5f52\u4e00\u5316\u540e\u4f1a\u628a\u5927\u7684\u5dee\u5f02\u538b\u7f29\u3002<\/p>\n\n\n\n<p>\u6240\u4ee5\u5b9e\u9645\u5de5\u7a0b\u4e2d\uff0c\u6700\u5e38\u7528\u7684\u878d\u5408\u7b56\u7565\u4e0d\u662f\u57fa\u4e8e\u5206\u6570\uff0c\u800c\u662f\u57fa\u4e8e\u6392\u540d\u2014\u2014\u8fd9\u5c31\u662f RRF\uff08Reciprocal Rank Fusion\uff0c\u5012\u6570\u6392\u540d\u878d\u5408\uff09\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>public class MilvusHybridSchemaDemo {\n\u200b\n    private static final String COLLECTION = \"customer_service_hybrid\";\n\u200b\n    private static final String SILICONFLOW_API_KEY = \"\u4f60\u7684 SiliconFlow API Key\";\n    private static final String EMBEDDING_URL = \"https:\/\/api.siliconflow.cn\/v1\/embeddings\";\n    private static final String EMBEDDING_MODEL = \"Qwen\/Qwen3-Embedding-8B\";\n\u200b\n    private static final Gson GSON = new Gson();\n    private static final OkHttpClient HTTP_CLIENT = new OkHttpClient();\n\u200b\n    \/** \u4e09\u79cd\u68c0\u7d22\u6a21\u5f0f *\/\n    public enum SearchMode {\n        DENSE_ONLY,     \/\/ \u7eaf\u5411\u91cf\u68c0\u7d22\n        SPARSE_ONLY,    \/\/ \u7eaf BM25 \u68c0\u7d22\n        HYBRID          \/\/ Dense + Sparse \u6df7\u5408\u68c0\u7d22\n    }\n\u200b\n    \/** \u68c0\u7d22\u53c2\u6570\u914d\u7f6e *\/\n    public static class SearchConfig {\n        public int denseRecallTopK = 20;\n        public int sparseRecallTopK = 20;\n        public int finalTopK = 8;\n\u200b\n        public int nprobe = 16;\n        public double dropRatioSearch = 0.2;\n        public int rrfK = 60;\n\u200b\n        public List&lt;String> outFields = List.of(\"text\");\n        public ConsistencyLevel consistencyLevel = ConsistencyLevel.BOUNDED;\n\u200b\n        public static SearchConfig defaults() {\n            return new SearchConfig();\n        }\n    }\n\u200b\n    public static void main(String&#91;] args) {\n        MilvusClientV2 client = new MilvusClientV2(ConnectConfig.builder()\n                .uri(\"http:\/\/localhost:19530\")\n                .build());\n\u200b\n        createCollectionIfAbsentAndLoad(client);\n\u200b\n        String query = \"\u8ba2\u5355\u53f7 2026012345 \u7684\u7269\u6d41\u72b6\u6001\";\n        SearchConfig cfg = SearchConfig.defaults();\n\u200b\n        \/\/ \u4f9d\u6b21\u8dd1\u4e09\u79cd\u6a21\u5f0f\u505a\u5bf9\u6bd4\n        for (SearchMode mode : SearchMode.values()) {\n            SearchResp resp = runSearch(client, query, mode, cfg);\n            printSearchResults(resp, mode);\n        }\n    }\n\u200b\n    \/\/ ==================== Collection \u521b\u5efa\u4e0e\u6570\u636e\u52a0\u8f7d ====================\n\u200b\n    public static void createCollectionIfAbsentAndLoad(MilvusClientV2 client) {\n        Boolean exists = client.hasCollection(\n                HasCollectionReq.builder().collectionName(COLLECTION).build()\n        );\n\u200b\n        if (!Boolean.TRUE.equals(exists)) {\n            \/\/ 1) Schema\n            CreateCollectionReq.CollectionSchema schema = client.createSchema();\n\u200b\n            schema.addField(AddFieldReq.builder()\n                    .fieldName(\"id\").dataType(DataType.Int64)\n                    .isPrimaryKey(true).autoID(true).build());\n\u200b\n            schema.addField(AddFieldReq.builder()\n                    .fieldName(\"text\").dataType(DataType.VarChar)\n                    .maxLength(8192).enableAnalyzer(true).build());\n\u200b\n            schema.addField(AddFieldReq.builder()\n                    .fieldName(\"text_dense\").dataType(DataType.FloatVector)\n                    .dimension(4096).build());\n\u200b\n            schema.addField(AddFieldReq.builder()\n                    .fieldName(\"text_sparse\").dataType(DataType.SparseFloatVector).build());\n\u200b\n            schema.addFunction(Function.builder()\n                    .functionType(FunctionType.BM25)\n                    .name(\"text_bm25_emb\")\n                    .inputFieldNames(List.of(\"text\"))\n                    .outputFieldNames(List.of(\"text_sparse\"))\n                    .build());\n\u200b\n            \/\/ 2) Create collection\n            client.createCollection(CreateCollectionReq.builder()\n                    .collectionName(COLLECTION).collectionSchema(schema).build());\n\u200b\n            \/\/ 3) Index\n            IndexParam denseIndex = IndexParam.builder()\n                    .fieldName(\"text_dense\")\n                    .indexType(IndexParam.IndexType.AUTOINDEX)\n                    .metricType(IndexParam.MetricType.COSINE).build();\n\u200b\n            IndexParam sparseIndex = IndexParam.builder()\n                    .fieldName(\"text_sparse\")\n                    .indexType(IndexParam.IndexType.AUTOINDEX)\n                    .metricType(IndexParam.MetricType.BM25).build();\n\u200b\n            client.createIndex(CreateIndexReq.builder()\n                    .collectionName(COLLECTION)\n                    .indexParams(List.of(denseIndex, sparseIndex)).build());\n\u200b\n            \/\/ 4) Insert demo data\n            List&lt;JsonObject> rows = Arrays.asList(\n                    buildRow(\"\u8ba2\u5355\u53f7 2026012345 \u7684\u7269\u6d41\u72b6\u6001\uff1a\u5df2\u53d1\u8d27\uff0c\u9884\u8ba1 1 \u6708 28 \u65e5\u9001\u8fbe\uff0c\u627f\u8fd0\u5546\u987a\u4e30\u901f\u8fd0\u3002\"),\n                    buildRow(\"\u7269\u6d41\u89c4\u5219\u603b\u8ff0\uff1a\u6807\u51c6\u8ba2\u5355 48 \u5c0f\u65f6\u5185\u53d1\u8d27\uff0c\u504f\u8fdc\u5730\u533a\u53ef\u80fd\u5ef6\u8fdf 1-2 \u5929\u3002\"),\n                    buildRow(\"\u53d1\u8d27\u65f6\u6548\u8bf4\u660e\uff1a\u4ed8\u6b3e\u6210\u529f\u540e\uff0c\u666e\u901a\u5546\u54c1 24-48 \u5c0f\u65f6\u5185\u53d1\u8d27\uff0c\u9884\u552e\u5546\u54c1\u4ee5\u8be6\u60c5\u9875\u4e3a\u51c6\u3002\"),\n                    buildRow(\"\u5f02\u5e38\u7b7e\u6536\u5904\u7406\uff1a\u5982\u5305\u88f9\u663e\u793a\u5df2\u7b7e\u6536\u4f46\u672a\u6536\u5230\uff0c\u8bf7\u5728 48 \u5c0f\u65f6\u5185\u8054\u7cfb\u5ba2\u670d\u6838\u5b9e\u3002\"),\n                    buildRow(\"\u8ba2\u5355\u67e5\u8be2\u5165\u53e3\uff1a\u767b\u5f55 APP \u2192 \u6211\u7684\u8ba2\u5355 \u2192 \u8f93\u5165\u8ba2\u5355\u53f7\u5373\u53ef\u67e5\u770b\u7269\u6d41\u8be6\u60c5\u3002\"),\n                    buildRow(\"\u9000\u8d27\u653f\u7b56\uff1a\u6536\u5230\u5546\u54c1 7 \u5929\u5185\u53ef\u7533\u8bf7\u65e0\u7406\u7531\u9000\u8d27\uff0c\u9700\u4fdd\u6301\u5546\u54c1\u5b8c\u597d\u3002\")\n            );\n\u200b\n            InsertResp insertResp = client.insert(InsertReq.builder()\n                    .collectionName(COLLECTION).data(rows).build());\n            System.out.println(\"\u63d2\u5165\u6570\u636e\u6761\u6570\uff1a\" + insertResp.getInsertCnt());\n        }\n\u200b\n        client.loadCollection(LoadCollectionReq.builder()\n                .collectionName(COLLECTION).build());\n        System.out.println(\"Collection \u5df2\u5c31\u7eea\u5e76\u52a0\u8f7d\uff1a\" + COLLECTION);\n    }\n\u200b\n    \/\/ ==================== \u4e09\u79cd\u68c0\u7d22\u6a21\u5f0f ====================\n\u200b\n    @SneakyThrows\n    public static SearchResp runSearch(MilvusClientV2 client,\n                                       String queryText,\n                                       SearchMode mode,\n                                       SearchConfig cfg) {\n        return switch (mode) {\n            case DENSE_ONLY -> runDenseOnly(client, queryText, cfg);\n            case SPARSE_ONLY -> runSparseOnly(client, queryText, cfg);\n            default -> runHybrid(client, queryText, cfg);\n        };\n    }\n\u200b\n    \/** \u7eaf\u5411\u91cf\u68c0\u7d22 *\/\n    private static SearchResp runDenseOnly(MilvusClientV2 client,\n                                           String queryText,\n                                           SearchConfig cfg) throws IOException {\n        List&lt;Float> queryVec = getEmbedding(queryText);\n        Map&lt;String, Object> params = new HashMap&lt;>();\n        params.put(\"metric_type\", \"COSINE\");\n        params.put(\"nprobe\", cfg.nprobe);\n\u200b\n        return client.search(SearchReq.builder()\n                .collectionName(COLLECTION)\n                .annsField(\"text_dense\")\n                .data(Collections.singletonList(new FloatVec(queryVec)))\n                .topK(cfg.finalTopK)\n                .outputFields(cfg.outFields)\n                .searchParams(params)\n                .consistencyLevel(cfg.consistencyLevel)\n                .build());\n    }\n\u200b\n    \/** \u7eaf BM25 \u68c0\u7d22 *\/\n    private static SearchResp runSparseOnly(MilvusClientV2 client,\n                                            String queryText,\n                                            SearchConfig cfg) {\n        Map&lt;String, Object> params = new HashMap&lt;>();\n        params.put(\"metric_type\", \"BM25\");\n        params.put(\"drop_ratio_search\", cfg.dropRatioSearch);\n\u200b\n        return client.search(SearchReq.builder()\n                .collectionName(COLLECTION)\n                .annsField(\"text_sparse\")\n                .data(Collections.singletonList(new EmbeddedText(queryText)))\n                .topK(cfg.finalTopK)\n                .outputFields(cfg.outFields)\n                .searchParams(params)\n                .consistencyLevel(cfg.consistencyLevel)\n                .build());\n    }\n\u200b\n    \/** \u6df7\u5408\u68c0\u7d22\uff1aDense + Sparse\uff0cRRF \u878d\u5408 *\/\n    private static SearchResp runHybrid(MilvusClientV2 client,\n                                        String queryText,\n                                        SearchConfig cfg) throws IOException {\n        List&lt;Float> queryVec = getEmbedding(queryText);\n\u200b\n        AnnSearchReq denseReq = AnnSearchReq.builder()\n                .vectorFieldName(\"text_dense\")\n                .vectors(Collections.singletonList(new FloatVec(queryVec)))\n                .params(\"{\\\"nprobe\\\": \" + cfg.nprobe + \"}\")\n                .topK(cfg.denseRecallTopK)\n                .build();\n\u200b\n        AnnSearchReq sparseReq = AnnSearchReq.builder()\n                .vectorFieldName(\"text_sparse\")\n                .vectors(Collections.singletonList(new EmbeddedText(queryText)))\n                .params(\"{\\\"drop_ratio_search\\\": \" + cfg.dropRatioSearch + \"}\")\n                .topK(cfg.sparseRecallTopK)\n                .build();\n\u200b\n        HybridSearchReq hybridReq = HybridSearchReq.builder()\n                .collectionName(COLLECTION)\n                .searchRequests(List.of(denseReq, sparseReq))\n                .ranker(new RRFRanker(cfg.rrfK))\n                .topK(cfg.finalTopK)\n                .consistencyLevel(cfg.consistencyLevel)\n                .outFields(cfg.outFields)\n                .build();\n\u200b\n        return client.hybridSearch(hybridReq);\n    }\n\u200b\n    private static void printSearchResults(SearchResp resp, SearchMode mode) {\n        System.out.println(\"\\n===== Mode: \" + mode + \" =====\");\n        List&lt;List&lt;SearchResp.SearchResult>> results = resp.getSearchResults();\n        for (List&lt;SearchResp.SearchResult> oneQueryResults : results) {\n            for (int i = 0; i &lt; oneQueryResults.size(); i++) {\n                SearchResp.SearchResult r = oneQueryResults.get(i);\n                System.out.println(\"Top-\" + (i + 1) + \" score=\" + r.getScore() + \", id=\" + r.getId());\n                Object text = r.getEntity() == null ? null : r.getEntity().get(\"text\");\n                System.out.println(\"  \" + text);\n            }\n        }\n    }\n\u200b\n    \/\/ ==================== \u5de5\u5177\u65b9\u6cd5 ====================\n\u200b\n    @SneakyThrows\n    private static JsonObject buildRow(String text) {\n        JsonObject row = new JsonObject();\n        row.addProperty(\"text\", text);\n        List&lt;Float> denseVector = getEmbedding(text);\n        JsonArray arr = new JsonArray();\n        for (Float f : denseVector) arr.add(f);\n        row.add(\"text_dense\", arr);\n        return row;\n    }\n\u200b\n    \/** \u8c03\u7528 SiliconFlow Embedding API \u751f\u6210\u5bc6\u96c6\u5411\u91cf *\/\n    private static List&lt;Float> getEmbedding(String text) throws IOException {\n        JsonObject requestBody = new JsonObject();\n        requestBody.addProperty(\"model\", EMBEDDING_MODEL);\n        requestBody.add(\"input\", GSON.toJsonTree(List.of(text)));\n\u200b\n        Request request = new Request.Builder()\n                .url(EMBEDDING_URL)\n                .addHeader(\"Authorization\", \"Bearer \" + SILICONFLOW_API_KEY)\n                .addHeader(\"Content-Type\", \"application\/json\")\n                .post(RequestBody.create(\n                        GSON.toJson(requestBody),\n                        MediaType.parse(\"application\/json\")))\n                .build();\n\u200b\n        try (Response response = HTTP_CLIENT.newCall(request).execute()) {\n            String body = Objects.requireNonNull(response.body()).string();\n            if (!response.isSuccessful()) {\n                throw new IOException(\"Embedding API \u8c03\u7528\u5931\u8d25 http=\" + response.code() + \", body=\" + body);\n            }\n\u200b\n            JsonObject json = GSON.fromJson(body, JsonObject.class);\n            JsonArray dataArray = json.getAsJsonArray(\"data\");\n            if (CollUtil.isEmpty(dataArray)) {\n                throw new IOException(\"Embedding API \u8fd4\u56de data \u4e3a\u7a7a\uff0c\u539f\u59cb\u54cd\u5e94: \" + body);\n            }\n\u200b\n            JsonArray embeddingArray = dataArray.get(0).getAsJsonObject().getAsJsonArray(\"embedding\");\n            if (embeddingArray == null) {\n                throw new IOException(\"Embedding API \u8fd4\u56de embedding \u4e3a\u7a7a\uff0c\u539f\u59cb\u54cd\u5e94: \" + body);\n            }\n\u200b\n            List&lt;Float> vector = new ArrayList&lt;>(embeddingArray.size());\n            for (int i = 0; i &lt; embeddingArray.size(); i++) {\n                vector.add(embeddingArray.get(i).getAsFloat());\n            }\n            return vector;\n        }\n    }\n}<\/code><\/pre>\n\n\n\n<p>\u8fd9\u6bb5\u4ee3\u7801\u7684\u5173\u952e\u70b9\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><code>SearchMode<\/code> \u679a\u4e3e\u652f\u6301\u4e09\u79cd\u6a21\u5f0f\u5207\u6362\uff0c\u65b9\u4fbf\u5bf9\u6bd4\u6d4b\u8bd5<\/li>\n\n\n\n<li>\u7eaf\u5411\u91cf\u68c0\u7d22\u7528 <code>client.search()<\/code> + <code>FloatVec<\/code>\uff0c\u7eaf BM25 \u7528 <code>client.search()<\/code> + <code>EmbeddedText<\/code>\uff0c\u6df7\u5408\u68c0\u7d22\u7528 <code>client.hybridSearch()<\/code> + <code>RRFRanker<\/code><\/li>\n\n\n\n<li><code>EmbeddedText<\/code> \u76f4\u63a5\u4f20\u539f\u6587\uff0cMilvus \u4f1a\u81ea\u52a8\u5206\u8bcd\u5e76\u8ba1\u7b97 BM25 \u5206\u6570<\/li>\n\n\n\n<li><code>SearchConfig<\/code> \u96c6\u4e2d\u7ba1\u7406\u68c0\u7d22\u53c2\u6570\uff0c\u4fbf\u4e8e\u8c03\u4f18<\/li>\n<\/ul>\n\n\n\n<p>\u7528\u540c\u4e00\u4e2a query\uff1a\"\u8ba2\u5355\u53f7 2026012345 \u7684\u7269\u6d41\u72b6\u6001\"\uff0c\u5bf9\u6bd4\u4e09\u79cd\u68c0\u7d22\u6a21\u5f0f\u7684\u5b9e\u9645\u8fd0\u884c\u7ed3\u679c\u3002<\/p>\n\n\n\n<p><strong>\u7eaf\u5411\u91cf\u68c0\u7d22\uff08DENSE_ONLY\uff09<\/strong><\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><tbody><tr><th class=\"has-text-align-left\" data-align=\"left\">\u6392\u540d<\/th><th class=\"has-text-align-left\" data-align=\"left\">score<\/th><th class=\"has-text-align-left\" data-align=\"left\">\u5185\u5bb9<\/th><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\">Top-1<\/td><td class=\"has-text-align-left\" data-align=\"left\">0.840<\/td><td class=\"has-text-align-left\" data-align=\"left\">\u8ba2\u5355\u53f7 2026012345 \u7684\u7269\u6d41\u72b6\u6001\uff1a\u5df2\u53d1\u8d27\uff0c\u9884\u8ba1 1 \u6708 28 \u65e5\u9001\u8fbe\uff0c\u627f\u8fd0\u5546\u987a\u4e30\u901f\u8fd0\u3002<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\">Top-2<\/td><td class=\"has-text-align-left\" data-align=\"left\">0.816<\/td><td class=\"has-text-align-left\" data-align=\"left\">\u8ba2\u5355\u67e5\u8be2\u5165\u53e3\uff1a\u767b\u5f55 APP \u2192 \u6211\u7684\u8ba2\u5355 \u2192 \u8f93\u5165\u8ba2\u5355\u53f7\u5373\u53ef\u67e5\u770b\u7269\u6d41\u8be6\u60c5\u3002<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\">Top-3<\/td><td class=\"has-text-align-left\" data-align=\"left\">0.573<\/td><td class=\"has-text-align-left\" data-align=\"left\">\u5f02\u5e38\u7b7e\u6536\u5904\u7406\uff1a\u5982\u5305\u88f9\u663e\u793a\u5df2\u7b7e\u6536\u4f46\u672a\u6536\u5230\uff0c\u8bf7\u5728 48 \u5c0f\u65f6\u5185\u8054\u7cfb\u5ba2\u670d\u6838\u5b9e\u3002<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\">Top-4<\/td><td class=\"has-text-align-left\" data-align=\"left\">0.484<\/td><td class=\"has-text-align-left\" data-align=\"left\">\u53d1\u8d27\u65f6\u6548\u8bf4\u660e\uff1a\u4ed8\u6b3e\u6210\u529f\u540e\uff0c\u666e\u901a\u5546\u54c1 24-48 \u5c0f\u65f6\u5185\u53d1\u8d27\uff0c\u9884\u552e\u5546\u54c1\u4ee5\u8be6\u60c5\u9875\u4e3a\u51c6\u3002<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\">Top-5<\/td><td class=\"has-text-align-left\" data-align=\"left\">0.457<\/td><td class=\"has-text-align-left\" data-align=\"left\">\u7269\u6d41\u89c4\u5219\u603b\u8ff0\uff1a\u6807\u51c6\u8ba2\u5355 48 \u5c0f\u65f6\u5185\u53d1\u8d27\uff0c\u504f\u8fdc\u5730\u533a\u53ef\u80fd\u5ef6\u8fdf 1-2 \u5929\u3002<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\">Top-6<\/td><td class=\"has-text-align-left\" data-align=\"left\">0.389<\/td><td class=\"has-text-align-left\" data-align=\"left\">\u9000\u8d27\u653f\u7b56\uff1a\u6536\u5230\u5546\u54c1 7 \u5929\u5185\u53ef\u7533\u8bf7\u65e0\u7406\u7531\u9000\u8d27\uff0c\u9700\u4fdd\u6301\u5546\u54c1\u5b8c\u597d\u3002<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p><strong>\u7eafBM25\u68c0\u7d22\uff08SPARSE_ONLY\uff09<\/strong><\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><tbody><tr><th class=\"has-text-align-left\" data-align=\"left\">\u6392\u540d<\/th><th class=\"has-text-align-left\" data-align=\"left\">score<\/th><th class=\"has-text-align-left\" data-align=\"left\">\u5185\u5bb9<\/th><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\">Top-1<\/td><td class=\"has-text-align-left\" data-align=\"left\">3.837<\/td><td class=\"has-text-align-left\" data-align=\"left\">\u8ba2\u5355\u53f7 2026012345 \u7684\u7269\u6d41\u72b6\u6001\uff1a\u5df2\u53d1\u8d27\uff0c\u9884\u8ba1 1 \u6708 28 \u65e5\u9001\u8fbe\uff0c\u627f\u8fd0\u5546\u987a\u4e30\u901f\u8fd0\u3002<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p>\u53ea\u8fd4\u56de\u4e86 1 \u6761\u7ed3\u679c\uff0c\u5176\u4f59 5 \u6761\u56e0\u8bcd\u6c47\u91cd\u53e0\u592a\u5c11\uff0cBM25 \u6253\u5206\u4f4e\u4e8e <code>drop_ratio_search<\/code> \u9608\u503c\u88ab\u8fc7\u6ee4\u3002<\/p>\n<\/blockquote>\n\n\n\n<p><strong>\u6df7\u5408\u68c0\u7d22\uff08HYBRID\uff0cRRFk=60\uff09<\/strong><\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><tbody><tr><th class=\"has-text-align-left\" data-align=\"left\">\u6392\u540d<\/th><th class=\"has-text-align-left\" data-align=\"left\">score<\/th><th class=\"has-text-align-left\" data-align=\"left\">\u5185\u5bb9<\/th><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\">Top-1<\/td><td class=\"has-text-align-left\" data-align=\"left\">0.0328<\/td><td class=\"has-text-align-left\" data-align=\"left\">\u8ba2\u5355\u53f7 2026012345 \u7684\u7269\u6d41\u72b6\u6001\uff1a\u5df2\u53d1\u8d27\uff0c\u9884\u8ba1 1 \u6708 28 \u65e5\u9001\u8fbe\uff0c\u627f\u8fd0\u5546\u987a\u4e30\u901f\u8fd0\u3002<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\">Top-2<\/td><td class=\"has-text-align-left\" data-align=\"left\">0.0161<\/td><td class=\"has-text-align-left\" data-align=\"left\">\u8ba2\u5355\u67e5\u8be2\u5165\u53e3\uff1a\u767b\u5f55 APP \u2192 \u6211\u7684\u8ba2\u5355 \u2192 \u8f93\u5165\u8ba2\u5355\u53f7\u5373\u53ef\u67e5\u770b\u7269\u6d41\u8be6\u60c5\u3002<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\">Top-3<\/td><td class=\"has-text-align-left\" data-align=\"left\">0.0159<\/td><td class=\"has-text-align-left\" data-align=\"left\">\u5f02\u5e38\u7b7e\u6536\u5904\u7406\uff1a\u5982\u5305\u88f9\u663e\u793a\u5df2\u7b7e\u6536\u4f46\u672a\u6536\u5230\uff0c\u8bf7\u5728 48 \u5c0f\u65f6\u5185\u8054\u7cfb\u5ba2\u670d\u6838\u5b9e\u3002<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\">Top-4<\/td><td class=\"has-text-align-left\" data-align=\"left\">0.0156<\/td><td class=\"has-text-align-left\" data-align=\"left\">\u53d1\u8d27\u65f6\u6548\u8bf4\u660e\uff1a\u4ed8\u6b3e\u6210\u529f\u540e\uff0c\u666e\u901a\u5546\u54c1 24-48 \u5c0f\u65f6\u5185\u53d1\u8d27\uff0c\u9884\u552e\u5546\u54c1\u4ee5\u8be6\u60c5\u9875\u4e3a\u51c6\u3002<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\">Top-5<\/td><td class=\"has-text-align-left\" data-align=\"left\">0.0154<\/td><td class=\"has-text-align-left\" data-align=\"left\">\u7269\u6d41\u89c4\u5219\u603b\u8ff0\uff1a\u6807\u51c6\u8ba2\u5355 48 \u5c0f\u65f6\u5185\u53d1\u8d27\uff0c\u504f\u8fdc\u5730\u533a\u53ef\u80fd\u5ef6\u8fdf 1-2 \u5929\u3002<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\">Top-6<\/td><td class=\"has-text-align-left\" data-align=\"left\">0.0152<\/td><td class=\"has-text-align-left\" data-align=\"left\">\u9000\u8d27\u653f\u7b56\uff1a\u6536\u5230\u5546\u54c1 7 \u5929\u5185\u53ef\u7533\u8bf7\u65e0\u7406\u7531\u9000\u8d27\uff0c\u9700\u4fdd\u6301\u5546\u54c1\u5b8c\u597d\u3002<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p><strong>\u7ed3\u679c\u5206\u6790\uff1a<\/strong><\/p>\n\n\n\n<p>\u4ece\u8fd9\u7ec4\u5bf9\u6bd4\u4e2d\u53ef\u4ee5\u89c2\u5bdf\u5230\u51e0\u4e2a\u5173\u952e\u73b0\u8c61\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>1.<strong>score\u91cf\u7eb2\u5b8c\u5168\u4e0d\u540c<\/strong> \uff1aBM25 \u7684\u5206\u6570\u662f 3.8\uff0cCOSINE \u76f8\u4f3c\u5ea6\u662f 0.84\uff0cRRF \u878d\u5408\u540e\u662f 0.033\u3002\u4e09\u79cd\u5206\u6570\u4e0d\u53ef\u76f4\u63a5\u6bd4\u8f83\uff0cRRF \u5206\u6570\u7684\u8ba1\u7b97\u516c\u5f0f\u662f <code>1\/(k+rank)<\/code>\uff0ck=60 \u65f6 Top-1 \u7684\u7406\u8bba\u4e0a\u9650\u7ea6\u4e3a <code>2 \u00d7 1\/61 \u2248 0.033<\/code>\uff08\u4e24\u8def\u90fd\u6392\u7b2c\u4e00\u65f6\u53d6\u5230\u6700\u5927\u503c\uff09<\/li>\n\n\n\n<li>2.<strong>BM25\u9ad8\u7cbe\u5ea6\u3001\u4f4e\u53ec\u56de<\/strong> \uff1a\u7eaf BM25 \u53ea\u8fd4\u56de\u4e86 1 \u6761\u7ed3\u679c\uff0c\u56e0\u4e3a query \u4e2d\u7684\"\u8ba2\u5355\u53f7\"\"2026012345\"\"\u7269\u6d41\"\"\u72b6\u6001\"\u8fd9\u4e9b token \u53ea\u5728\u7b2c\u4e00\u6761\u6587\u672c\u4e2d\u5927\u91cf\u51fa\u73b0\uff0c\u5176\u4f59\u6587\u672c\u7684\u8bcd\u6c47\u91cd\u53e0\u592a\u5c11\u88ab <code>drop_ratio_search=0.2<\/code> \u8fc7\u6ee4\u3002\u8fd9\u6b63\u662f BM25 \u7684\u5178\u578b\u7279\u5f81\u2014\u2014\u7cbe\u786e\u5339\u914d\u80fd\u529b\u5f3a\uff0c\u4f46\u5bf9\u8bed\u4e49\u76f8\u8fd1\u4f46\u63aa\u8f9e\u4e0d\u540c\u7684\u6587\u672c\u65e0\u80fd\u4e3a\u529b<\/li>\n\n\n\n<li>3.<strong>\u5411\u91cf\u68c0\u7d22\u9ad8\u53ec\u56de\u3001\u8bed\u4e49\u6cdb\u5316<\/strong> \uff1a\u7eaf\u5411\u91cf\u68c0\u7d22\u8fd4\u56de\u4e86\u5168\u90e8 6 \u6761\u7ed3\u679c\uff0c\u4e14 Top-2\"\u8ba2\u5355\u67e5\u8be2\u5165\u53e3\"\u867d\u7136\u4e0d\u5305\u542b\"2026012345\"\u8fd9\u4e2a\u5173\u952e\u8bcd\uff0c\u4f46\u8bed\u4e49\u4e0a\u4e0e\"\u67e5\u8ba2\u5355\u7269\u6d41\"\u9ad8\u5ea6\u76f8\u5173\uff0cCOSINE \u5206\u6570\u8fbe\u5230 0.816\u3002\u8fd9\u4f53\u73b0\u4e86\u5411\u91cf\u68c0\u7d22\u7684\u8bed\u4e49\u6cdb\u5316\u80fd\u529b<\/li>\n\n\n\n<li>4.<strong>\u6df7\u5408\u68c0\u7d22\u517c\u987e\u4e24\u8005<\/strong> \uff1aTop-1 \u7cbe\u786e\u547d\u4e2d\u4e86\u5305\u542b\u8ba2\u5355\u53f7\u7684\u6587\u672c\uff08BM25 \u7684\u8d21\u732e\uff09\uff0c\u540c\u65f6 Top-2 \u5230 Top-6 \u4fdd\u7559\u4e86\u5411\u91cf\u68c0\u7d22\u7684\u8bed\u4e49\u6392\u5e8f\uff08\u5411\u91cf\u68c0\u7d22\u7684\u8d21\u732e\uff09\u3002\u5728\u5f53\u524d\u5c0f\u6570\u636e\u96c6\u4e0b\uff0c\u6df7\u5408\u68c0\u7d22\u7684\u6392\u5e8f\u4e0e\u7eaf\u5411\u91cf\u68c0\u7d22\u4e00\u81f4\uff0c\u4f46 <strong>Top-1\u7684RRF\u5206\u6570\uff080.0328\uff09\u663e\u8457\u9ad8\u4e8eTop-2\uff080.0161\uff09<\/strong> \uff0c\u62c9\u5f00\u4e86\u8fd1\u4e00\u500d\u7684\u5dee\u8ddd\u2014\u2014\u8fd9\u6b63\u662f\u56e0\u4e3a Top-1 \u5728\u4e24\u8def\u68c0\u7d22\u4e2d\u90fd\u6392\u7b2c\u4e00\uff0c\u83b7\u5f97\u4e86\u53cc\u500d\u7684 RRF \u52a0\u5206<\/li>\n<\/ol>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p>\u5f53\u524d\u793a\u4f8b\u6570\u636e\u53ea\u6709 6 \u6761\uff0c\u4e09\u79cd\u6a21\u5f0f\u7684 Top-1 \u90fd\u662f\u540c\u4e00\u6761\uff0c\u6df7\u5408\u68c0\u7d22\u7684\u4e92\u8865\u4f18\u52bf\u4e0d\u591f\u660e\u663e\u3002\u5728\u5b9e\u9645\u751f\u4ea7\u73af\u5883\u4e2d\uff0c\u5f53\u6570\u636e\u91cf\u8fbe\u5230\u6570\u4e07\u751a\u81f3\u6570\u767e\u4e07\u6761\u65f6\uff0c\u7eaf\u5411\u91cf\u68c0\u7d22\u5bb9\u6613\u628a\u8bed\u4e49\u76f8\u8fd1\u4f46\u4e0d\u76f8\u5173\u7684\u7ed3\u679c\u6392\u5230\u524d\u9762\uff0c\u7eaf BM25 \u5bb9\u6613\u6f0f\u6389\u63aa\u8f9e\u4e0d\u540c\u4f46\u8bed\u4e49\u76f8\u5173\u7684\u7ed3\u679c\uff0c\u6df7\u5408\u68c0\u7d22\u7684\u4f18\u52bf\u4f1a\u66f4\u52a0\u663e\u8457\u3002<\/p>\n<\/blockquote>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"reranking\">\u91cd\u6392\u5e8f\uff08Reranking\uff09\uff1a\u5bf9\u5019\u9009\u7ed3\u679c\u505a\u7cbe\u7ec6\u5316\u6392\u5e8f<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"1\">1. \u4e3a\u4ec0\u4e48\u9700\u8981\u91cd\u6392\u5e8f<\/h3>\n\n\n\n<p>\u6df7\u5408\u68c0\u7d22\u5df2\u7ecf\u80fd\u628a\u76f8\u5173\u7684 chunk \u53ec\u56de\u6765\u4e86\uff0c\u4e3a\u4ec0\u4e48\u8fd8\u9700\u8981\u91cd\u6392\u5e8f\uff1f<\/p>\n\n\n\n<p>\u56e0\u4e3a\u53ec\u56de\u9636\u6bb5\uff08\u5411\u91cf\u68c0\u7d22 \/ BM25 \/ \u6df7\u5408\u68c0\u7d22\uff09\u8ffd\u6c42\u7684\u662f<strong>\u5feb\u901f\u53ec\u56de\u5c3d\u53ef\u80fd\u591a\u7684\u76f8\u5173\u7ed3\u679c<\/strong> \uff0c\u4f46\u6392\u5e8f\u4e0d\u4e00\u5b9a\u7cbe\u51c6\u3002\u6253\u4e2a\u6bd4\u65b9\uff0c\u4f60\u5728\u56fe\u4e66\u9986\u627e\u4e66\uff0c\u53ec\u56de\u9636\u6bb5\u662f<strong>\u628a\u53ef\u80fd\u76f8\u5173\u7684\u4e66\u90fd\u642c\u5230\u684c\u5b50\u4e0a<\/strong> \uff0c\u91cd\u6392\u5e8f\u662f<strong>\u4ed4\u7ec6\u7ffb\u770b\u6bcf\u672c\u4e66\uff0c\u628a\u6700\u76f8\u5173\u7684\u51e0\u672c\u6392\u5230\u6700\u524d\u9762<\/strong> \u3002<\/p>\n\n\n\n<p>\u6700\u7ec8\u7ed9 LLM \u7684\u4e0a\u4e0b\u6587\u7a97\u53e3\u5f88\u5c0f\uff0c\u771f\u6b63\u5173\u952e\u7684\u662f Top-3 \u6216 Top-5 \u7684\u6392\u5e8f\u662f\u5426\u6b63\u786e\u3002\u5982\u679c Top-1 \u662f\u4e0d\u76f8\u5173\u7684 chunk\uff0cLLM \u5f88\u53ef\u80fd\u88ab\u8bef\u5bfc\uff0c\u751f\u6210\u9519\u8bef\u7684\u7b54\u6848\u3002\u91cd\u6392\u5e8f\u5c31\u662f\u89e3\u51b3\u8fd9\u4e00\u6b65\u2014\u2014\u7528\u66f4\u5f3a\u7684\u6a21\u578b\u5bf9\u5019\u9009\u96c6\u91cd\u65b0\u6253\u5206\uff0c\u628a\u6700\u76f8\u5173\u7684\u7ed3\u679c\u6392\u5230\u6700\u524d\u9762\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"2\">2. \u91cd\u6392\u5e8f\u7684\u5de5\u4f5c\u539f\u7406<\/h3>\n\n\n\n<p>\u91cd\u6392\u5e8f\u7684\u57fa\u672c\u6d41\u7a0b\u662f\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>1.\u521d\u68c0\u9636\u6bb5\uff08\u5411\u91cf\u68c0\u7d22 \/ \u6df7\u5408\u68c0\u7d22\uff09\u4ece100w\u6587\u6863\u91cc\u9762\u5feb\u901f\u53ec\u56de\u5019\u9009\u96c6\uff0c\u6bd4\u5982 Top-20 \u6216 Top-50<\/li>\n\n\n\n<li>2.\u91cd\u6392\u5e8f\u6a21\u578b\u9010\u4e2a\u8bc4\u4f30\u8fd9\u4e2a chunk \u548c\u7528\u6237\u95ee\u9898\u5230\u5e95\u6709\u591a\u76f8\u5173\uff0c\u7ed9\u6bcf\u4e2a\u5019\u9009\u6253\u5206\u8fdb\u884c\u7cbe\u6392<\/li>\n\n\n\n<li>3.\u6309\u91cd\u6392\u5e8f\u5206\u6570\u91cd\u65b0\u6392\u5e8f\uff0c\u53d6 Top-K\uff08\u6bd4\u5982 Top-5\uff09\u4f5c\u4e3a\u6700\u7ec8\u7ed3\u679c<\/li>\n<\/ol>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"2-1-bi-encoder-vs-cross-encoder\">2.1 Bi-Encoder vs Cross-Encoder<\/h4>\n\n\n\n<p>\u8fd9\u91cc\u9700\u8981\u7406\u89e3\u4e24\u79cd\u7f16\u7801\u5668\u7684\u533a\u522b\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Bi-Encoder\uff08\u53cc\u7f16\u7801\u5668\uff09\uff1aquery \u548c chunk \u5206\u522b\u7f16\u7801\u6210\u5411\u91cf\uff0c\u7136\u540e\u8ba1\u7b97\u5411\u91cf\u76f8\u4f3c\u5ea6\u3002\u8fd9\u5c31\u662f Embedding \u6a21\u578b\u7684\u5de5\u4f5c\u65b9\u5f0f\u3002\u4f18\u70b9\u662f\u901f\u5ea6\u5feb\uff0c\u53ef\u4ee5\u63d0\u524d\u628a\u6240\u6709 chunk \u7f16\u7801\u597d\u5b58\u8d77\u6765\uff0c\u67e5\u8be2\u65f6\u53ea\u9700\u8981\u7f16\u7801 query\uff1b\u7f3a\u70b9\u662f\u7cbe\u5ea6\u6709\u9650\uff0c\u56e0\u4e3a query \u548c chunk \u662f\u72ec\u7acb\u7f16\u7801\u7684\uff0c\u65e0\u6cd5\u6355\u6349\u5b83\u4eec\u4e4b\u95f4\u7684\u7ec6\u7c92\u5ea6\u4ea4\u4e92\u5173\u7cfb\u3002<\/li>\n\n\n\n<li>Cross-Encoder\uff08\u4ea4\u53c9\u7f16\u7801\u5668\uff09\uff1a\u628a query \u548c chunk \u62fc\u63a5\u5728\u4e00\u8d77\uff08\u6bd4\u5982 <code>[CLS] query [SEP] chunk [SEP]<\/code>\uff09\uff0c\u4e00\u8d77\u8f93\u5165\u6a21\u578b\uff0c\u6a21\u578b\u80fd\u770b\u5230 query \u548c chunk \u7684\u5b8c\u6574\u4ea4\u4e92\uff0c\u8f93\u51fa\u4e00\u4e2a\u76f8\u5173\u6027\u5206\u6570\u3002\u4f18\u70b9\u662f\u7cbe\u5ea6\u66f4\u9ad8\uff0c\u80fd\u6355\u6349\u66f4\u7ec6\u7c92\u5ea6\u7684\u8bed\u4e49\u5173\u7cfb\uff1b\u7f3a\u70b9\u662f\u901f\u5ea6\u6162\uff0c\u6bcf\u4e2a (query, chunk) \u5bf9\u90fd\u8981\u8fc7\u4e00\u904d\u6a21\u578b\u3002<\/li>\n<\/ul>\n\n\n\n<p>\u91cd\u6392\u5e8f\u901a\u5e38\u7528 Cross-Encoder\uff0c\u56e0\u4e3a\u5019\u9009\u96c6\u5df2\u7ecf\u5f88\u5c0f\u4e86\uff08\u6bd4\u5982 20~50 \u4e2a\uff09\uff0c\u53ef\u4ee5\u63a5\u53d7\u6162\u4e00\u70b9\u7684\u901f\u5ea6\uff0c\u6362\u53d6\u66f4\u9ad8\u7684\u7cbe\u5ea6\u3002<\/p>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"2-2-cross-encoder\">2.2 \u4e3a\u4ec0\u4e48\u4e0d\u76f4\u63a5\u7528 Cross-Encoder \u505a\u68c0\u7d22<\/h4>\n\n\n\n<p>\u4f60\u53ef\u80fd\u4f1a\u95ee\uff1a\u65e2\u7136 Cross-Encoder \u7cbe\u5ea6\u66f4\u9ad8\uff0c\u4e3a\u4ec0\u4e48\u4e0d\u76f4\u63a5\u7528\u5b83\u505a\u68c0\u7d22\uff0c\u8fd8\u8981\u641e\u4e24\u9636\u6bb5\uff1f<\/p>\n\n\n\n<p>\u56e0\u4e3a\u592a\u6162\u4e86\u3002\u5047\u8bbe\u4f60\u7684\u77e5\u8bc6\u5e93\u6709 100 \u4e07\u4e2a chunk\uff0c\u7528\u6237\u63d0\u95ee\u65f6\uff0c\u4f60\u9700\u8981\u628a\u8fd9 100 \u4e07\u4e2a chunk \u9010\u4e2a\u548c query \u62fc\u63a5\u8d77\u6765\u8fc7 Cross-Encoder\uff0c\u8fd9\u9700\u8981 100 \u4e07\u6b21\u6a21\u578b\u63a8\u7406\uff0c\u5ef6\u8fdf\u548c\u6210\u672c\u90fd\u4e0d\u53ef\u63a5\u53d7\u3002<\/p>\n\n\n\n<p>\u6240\u4ee5\u5de5\u7a0b\u4e0a\u4e00\u5b9a\u662f\u4e24\u9636\u6bb5\u7b56\u7565\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>1.\u7c97\u68c0\u7d22\uff08Bi-Encoder\uff09\uff1a\u5feb\u901f\u4ece 100 \u4e07\u4e2a chunk \u4e2d\u53ec\u56de Top-20 \u6216 Top-50\uff0c\u5ef6\u8fdf\u4f4e\uff0c\u8986\u76d6\u9762\u5e7f<\/li>\n\n\n\n<li>2.\u7cbe\u6392\u5e8f\uff08Cross-Encoder\uff09\uff1a\u5bf9\u8fd9 20~50 \u4e2a\u5019\u9009\u9010\u4e2a\u6253\u5206\uff0c\u5ef6\u8fdf\u53ef\u63a5\u53d7\uff0c\u7cbe\u5ea6\u9ad8<\/li>\n<\/ol>\n\n\n\n<p>\u8fd9\u5c31\u662f\u5feb\u53ec\u56de + \u6162\u7cbe\u6392\u7684\u6838\u5fc3\u601d\u60f3\u3002<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<p><\/p>\n\n\n\n<p>\u8fd9\u6bb5\u5185\u5bb9\u975e\u5e38\u786c\u6838\u4e14\u8d34\u8fd1\u5b9e\u9645\u5de5\u7a0b\uff0c\u5b83\u5b8c\u6574\u5730\u5c55\u793a\u4e86\u6784\u5efa\u4e00\u4e2a<strong>\u751f\u4ea7\u7ea7 RAG\uff08\u68c0\u7d22\u589e\u5f3a\u751f\u6210\uff09\u7cfb\u7edf<\/strong>\u4e2d\u6781\u5176\u5173\u952e\u7684\u201c\u68c0\u7d22\u4e0e\u91cd\u6392\uff08Retrieve &amp; Rerank\uff09\u201d\u94fe\u8def\u3002<\/p>\n\n\n\n<p>\u4e3a\u4e86\u8ba9\u4f60\u66f4\u900f\u5f7b\u5730\u7406\u89e3\uff0c\u6211\u5c06\u4ece<strong>\u5e95\u5c42\u539f\u7406\u3001\u4ee3\u7801\u903b\u8f91\u3001\u67b6\u6784\u9009\u578b\u3001\u53c2\u6570\u8c03\u4f18<\/strong>\u56db\u4e2a\u7ef4\u5ea6\uff0c\u5bf9\u4f60\u63d0\u4f9b\u7684\u8fd9\u6bb5\u5185\u5bb9\u8fdb\u884c\u8be6\u7ec6\u62c6\u89e3\u548c\u6df1\u5ea6\u5ef6\u5c55\u3002<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">\u4e00\u3001 \u6df1\u5ea6\u62c6\u89e3\uff1a\u4e3a\u4ec0\u4e48\u9700\u8981 Reranker\uff08\u91cd\u6392\u5e8f\uff09\uff1f<\/h3>\n\n\n\n<p>\u5728 RAG \u6d41\u7a0b\u4e2d\uff0c\u68c0\u7d22\u901a\u5e38\u5206\u4e3a\u4e24\u9636\u6bb5\uff1a<strong>\u7c97\u6392\uff08\u53ec\u56de\uff09<\/strong> \u548c <strong>\u7cbe\u6392\uff08\u91cd\u6392\u5e8f\uff09<\/strong>\u3002<\/p>\n\n\n\n<h4 class=\"wp-block-heading\">1. \u6838\u5fc3\u6982\u5ff5\u5bf9\u6bd4<\/h4>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u5411\u91cf\u68c0\u7d22\/BM25\uff08\u7c97\u6392\uff09\uff1a<\/strong> \u5c31\u50cf\u662f\u201c\u6d77\u9009\u201d\u3002\u9762\u5bf9\u6d77\u91cf\u6570\u636e\u5e93\uff08\u51e0\u5341\u4e07\u3001\u4e0a\u767e\u4e07\u6761\u6587\u6863\uff09\uff0c\u5b83\u4eec\u80fd\u7528\u6781\u4f4e\u7684\u5ef6\u8fdf\uff08\u51e0\u5341\u6beb\u79d2\uff09\u635e\u51fa\u6700\u76f8\u5173\u7684\u51e0\u5341\u6761\u3002\u4f46\u5b83\u4eec\u6bd4\u8f83\u201c\u7c97\u5fc3\u201d\uff0c\u5bb9\u6613\u88ab\u8868\u9762\u7684\u8bcd\u6c47\u6216\u76f8\u4f3c\u7684\u53e5\u5f0f\u8ff7\u60d1\u3002<\/li>\n\n\n\n<li><strong>Reranker\uff08\u7cbe\u6392\uff09\uff1a<\/strong> \u5c31\u50cf\u662f\u201c\u7ec8\u9762\u201d\u3002\u5b83\u8ba1\u7b97\u91cf\u5927\u3001\u901f\u5ea6\u6162\uff0c\u6240\u4ee5\u4e0d\u80fd\u7528\u6765\u626b\u5168\u5e93\uff0c\u53ea\u80fd\u5904\u7406\u7c97\u6392\u9001\u8fc7\u6765\u7684\u8fd9\u51e0\u5341\u4e2a\u5019\u9009\u8005\u3002Reranker \u5e95\u5c42\u901a\u5e38\u662f<strong>Cross-Encoder\uff08\u4ea4\u53c9\u7f16\u7801\u5668\uff09<\/strong>\uff0c\u5b83\u4f1a\u628a\u7528\u6237\u7684 Query \u548c\u6bcf\u4e00\u4e2a\u6587\u6863\u62fc\u5728\u4e00\u8d77\uff0c\u8fdb\u884c\u9010\u5b57\u9010\u53e5\u7684\u6df1\u5ea6\u8bed\u4e49\u4ea4\u4e92\u8ba1\u7b97\uff0c\u56e0\u6b64\u6253\u5206\u6781\u5176\u7cbe\u51c6\u3002<\/li>\n<\/ul>\n\n\n\n<h4 class=\"wp-block-heading\">2. \u4ee3\u7801\u89e3\u6790\u4e0e\u4eae\u70b9\uff08Java \u5b9e\u73b0\uff09<\/h4>\n\n\n\n<p>\u8fd9\u6bb5 Java \u4ee3\u7801\u975e\u5e38\u6807\u51c6\uff0c\u6709\u51e0\u4e2a\u5de5\u7a0b\u4e0a\u7684\u4eae\u70b9\u503c\u5f97\u6ce8\u610f\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u8f7b\u91cf\u7ea7 HTTP \u5ba2\u6237\u7aef\uff1a<\/strong> \u4f7f\u7528 OkHttp \u548c Gson \u76f4\u63a5\u8c03\u7528 API\uff0c\u6ca1\u6709\u5f15\u5165\u6c89\u91cd\u7684\u7b2c\u4e09\u65b9 SDK\uff0c\u8fd9\u5728\u5b9e\u9645\u4e1a\u52a1\u4e2d\u975e\u5e38\u5229\u4e8e\u7ef4\u62a4\u3002<\/li>\n\n\n\n<li><strong>\u5bb9\u9519\u5904\u7406\uff1a<\/strong> if (!response.isSuccessful()) \u505a\u4e86\u57fa\u672c\u7684\u9519\u8bef\u62e6\u622a\uff0c\u5b9e\u9645\u751f\u4ea7\u4e2d\u8fd9\u91cc\u8fd8\u9700\u8981\u52a0\u4e0a\u91cd\u8bd5\u673a\u5236\uff08Retry\uff09\u548c\u964d\u7ea7\u7b56\u7565\uff08\u6bd4\u5982 API \u6302\u4e86\uff0c\u76f4\u63a5\u8fd4\u56de\u7c97\u6392\u7ed3\u679c\uff09\u3002<\/li>\n\n\n\n<li><strong>\u9762\u5411\u5bf9\u8c61\u7684\u5c01\u88c5\uff1a<\/strong> \u5b9a\u4e49\u4e86 RerankItem \u7c7b\uff0c\u4fdd\u7559\u4e86\u539f\u59cb\u6587\u6863\u7684 index\uff08\u7d22\u5f15\uff09\u3001score\uff08\u5206\u6570\uff09\u548c text\uff08\u6587\u672c\uff09\uff0c\u6700\u540e\u5229\u7528 Java \u7684 Comparator \u6839\u636e score \u8fdb\u884c\u5012\u5e8f\u6392\u5217\u3002<\/li>\n<\/ul>\n\n\n\n<h4 class=\"wp-block-heading\">3. Qwen3-Reranker \u7684\u201c\u6740\u624b\u950f\u201d\uff1aInstruction\uff08\u6307\u4ee4\uff09<\/h4>\n\n\n\n<p>\u666e\u901a Reranker \u53ea\u80fd\u5224\u65ad\u201c\u8fd9\u4e24\u6bb5\u6587\u672c\u76f8\u4f3c\u5ea6\u591a\u9ad8\u201d\u3002\u4f46 Qwen \u5f15\u5165\u7684 instruction \u53c2\u6570\u6539\u53d8\u4e86\u6e38\u620f\u89c4\u5219\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u75db\u70b9\uff1a<\/strong> \u6709\u65f6\u5019\u76f8\u5173\u6027\u9ad8\u7684\u6587\u6863\uff0c\u5e76\u4e0d\u662f\u4e1a\u52a1\u60f3\u8981\u7684\u6587\u6863\u3002\u6bd4\u5982\u7528\u6237\u67e5\u8ba2\u5355\uff0c\u53ef\u80fd\u6709\u5f88\u591a\u76f8\u4f3c\u7684\u5386\u53f2\u8ba2\u5355\u6587\u672c\u3002<\/li>\n\n\n\n<li><strong>\u7834\u5c40\uff1a<\/strong> \u4f20\u5165 \"\u4f18\u5148\u6392\u5e8f\u5305\u542b\u8ba2\u5355\u53f7\u4e0e\u65f6\u95f4\u72b6\u6001\u7684\u6587\u6863\"\uff0cReranker \u5c31\u5177\u5907\u4e86\u201c\u4e1a\u52a1\u903b\u8f91\u7684\u504f\u597d\u201d\uff0c\u5b83\u4f1a\u523b\u610f\u628a\u5e26\u6709\u65f6\u95f4\u6233\u548c\u8ba2\u5355\u72b6\u6001\u7684\u6587\u6863\u63a8\u5230\u6700\u524d\u9762\u3002\u8fd9\u662f\u5927\u6a21\u578b\u65f6\u4ee3\u5e26\u6765\u7684\u7075\u6d3b\u6027\u3002<\/li>\n<\/ul>\n\n\n\n<h4 class=\"wp-block-heading\">4. iPhone 16 \u6848\u4f8b\u8bf4\u660e\u4e86\u4ec0\u4e48\uff1f<\/h4>\n\n\n\n<p>Query: iPhone 16 Pro Max \u62c6\u5c01\u540e\u8fd8\u80fd\u9000\u5417<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u7c97\u6392\u53ef\u80fd\u56e0\u4e3a \"iPhone 16 Pro Max\" \u8fd9\u4e2a\u8bcd\u9891\u6781\u9ad8\uff0c\u628a\u300a\u4e03\u5929\u65e0\u7406\u7531\u9000\u8d27\u8bf4\u660e\u300b\uff08\u53ef\u80fd\u672a\u76f4\u63a5\u5199\u660e\u62c6\u5c01\u6761\u4ef6\uff09\u6392\u5230\u4e86\u7b2c\u4e00\u3002<\/li>\n\n\n\n<li>\u91cd\u6392\u901a\u8fc7\u6df1\u5ea6\u8bed\u4e49\u7406\u89e3\uff0c\u6355\u6349\u5230\u4e86\u6838\u5fc3\u75db\u70b9\u8bcd <strong>\"\u62c6\u5c01\"<\/strong>\u3002\u5b83\u51c6\u786e\u5730\u5c06\u300a\u62c6\u5c01\u5546\u54c1\u9000\u8d27\u89c4\u5219\u300b\u63d0\u4e0a\u6765\uff0c\u628a\u6cdb\u6cdb\u800c\u8c08\u7684\u300a\u4e03\u5929\u65e0\u7406\u7531\u9000\u8d27\u8bf4\u660e\u300b\u964d\u4e0b\u53bb\u3002<\/li>\n\n\n\n<li><strong>\u7ed3\u8bba\uff1a<\/strong> Rerank \u4e0d\u751f\u4ea7\u65b0\u6587\u6863\uff0c\u5b83\u53ea\u662f\u201c\u597d\u94a2\u7528\u5728\u5200\u5203\u4e0a\u201d\uff0c\u628a\u6700\u7cbe\u534e\u7684\u77e5\u8bc6\u585e\u8fdb\u5927\u6a21\u578b\u6709\u9650\u7684\u4e0a\u4e0b\u6587\u7a97\u53e3\u91cc\u3002<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">\u4e8c\u3001 \u67b6\u6784\u9009\u578b\uff1a\u56db\u79cd\u68c0\u7d22\u7b56\u7565\u600e\u4e48\u9009\uff1f<\/h3>\n\n\n\n<p>\u6587\u4e2d\u7ed9\u51fa\u7684\u51b3\u7b56\u8868\u975e\u5e38\u7ecf\u5178\uff0c\u8fd9\u91cc\u8865\u5145\u5176\u80cc\u540e\u7684\u5de5\u7a0b\u8003\u91cf\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u7eaf\u5411\u91cf\u68c0\u7d22 (Dense Retrieval)<\/strong>\n<ul class=\"wp-block-list\">\n<li><strong>\u539f\u7406\uff1a<\/strong> \u628a\u6587\u5b57\u53d8\u6210\u591a\u7ef4\u5411\u91cf\u7a7a\u95f4\u91cc\u7684\u5750\u6807\uff0c\u7b97\u8ddd\u79bb\u3002<\/li>\n\n\n\n<li><strong>\u7f3a\u70b9\uff1a<\/strong> \u5bf9\u4e13\u6709\u540d\u8bcd\u3001\u6570\u5b57\u6781\u5176\u4e0d\u654f\u611f\u3002\u641c\u201c\u8ba2\u5355\u53f7 2026012345\u201d\uff0c\u5411\u91cf\u53ef\u80fd\u4f1a\u7ed9\u4f60\u8fd4\u56de\u201c\u8ba2\u5355\u53f7 2026012346\u201d\uff08\u56e0\u4e3a\u5b83\u4eec\u5728\u8bed\u4e49\u7a7a\u95f4\u91cc\u957f\u5f97\u592a\u50cf\u4e86\uff09\u3002<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>\u7eaf BM25 (Sparse Retrieval)<\/strong>\n<ul class=\"wp-block-list\">\n<li><strong>\u539f\u7406\uff1a<\/strong> \u4f20\u7edf\u7684\u5173\u952e\u8bcd\u8bcd\u9891\u7edf\u8ba1\uff08TF-IDF \u7684\u5347\u7ea7\u7248\uff09\u3002<\/li>\n\n\n\n<li><strong>\u7f3a\u70b9\uff1a<\/strong> \u4e0d\u61c2\u540c\u4e49\u8bcd\u3002\u641c\u201c\u756a\u8304\u201d\uff0c\u5b83\u7edd\u5bf9\u627e\u4e0d\u5230\u53ea\u5199\u4e86\u201c\u897f\u7ea2\u67ff\u201d\u7684\u6587\u6863\u3002<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>\u6df7\u5408\u68c0\u7d22 (Hybrid: Vector + BM25)<\/strong>\n<ul class=\"wp-block-list\">\n<li><strong>\u9ec4\u91d1\u642d\u6863\uff1a<\/strong> \u5411\u91cf\u89e3\u51b3\u201c\u540c\u4e49\u8bcd\u548c\u81ea\u7136\u8bed\u8a00\u8bed\u4e49\u201d\u95ee\u9898\uff0cBM25 \u89e3\u51b3\u201c\u4e13\u6709\u540d\u8bcd\u3001\u7f16\u53f7\u3001\u578b\u53f7\u7684\u7cbe\u51c6\u5339\u914d\u201d\u95ee\u9898\u3002\u901a\u8fc7 RRF\uff08Reciprocal Rank Fusion\uff0c\u5012\u6570\u6392\u540d\u878d\u5408\uff09\u7b97\u6cd5\u5c06\u4e24\u8def\u7ed3\u679c\u5408\u5e76\u3002<\/li>\n\n\n\n<li><strong>\u9002\u7528\uff1a<\/strong> 90% \u7684\u4f01\u4e1a\u7ea7 RAG \u8d77\u6b65\u9996\u9009\u3002<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>\u6df7\u5408\u68c0\u7d22 + Rerank (Pipeline \u7684\u7ec8\u6781\u5f62\u6001)<\/strong>\n<ul class=\"wp-block-list\">\n<li><strong>\u4ee3\u4ef7\uff1a<\/strong> \u589e\u52a0\u4e86\u4e00\u6b21\u5927\u6a21\u578b API \u8c03\u7528\uff0c\u5ef6\u8fdf\u4f1a\u589e\u52a0 200-500ms\uff0c\u4e14\u6709 token \u6210\u672c\u3002<\/li>\n\n\n\n<li><strong>\u6536\u76ca\uff1a<\/strong> \u89e3\u51b3 RAG \u6700\u5934\u75bc\u7684\u201c\u7b54\u975e\u6240\u95ee\u201d\u95ee\u9898\uff0c\u5bf9\u6700\u7ec8\u7b54\u6848\u7684\u51c6\u786e\u7387\u63d0\u5347\u5de8\u5927\u3002<\/li>\n<\/ul>\n<\/li>\n<\/ol>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">\u4e09\u3001 \u8c03\u4f18\u79d8\u7c4d\uff1a\u90a3\u4e9b\u7528\u94b1\u548c\u8e29\u5751\u6362\u6765\u7684\u7ecf\u9a8c<\/h3>\n\n\n\n<p>\u6587\u4e2d\u7684\u7b2c 3 \u8282\u201c\u68c0\u7d22\u53c2\u6570\u8c03\u4f18\u201d\u662f\u6574\u7bc7\u7684\u7cbe\u534e\u6240\u5728\uff0c\u8fd9\u91cc\u6211\u4e3a\u4f60\u7ffb\u8bd1\u6210\u66f4\u901a\u4fd7\u7684\u201c\u5927\u767d\u8bdd\u201d\uff1a<\/p>\n\n\n\n<h4 class=\"wp-block-heading\">1. \u6f0f\u6597\u6a21\u578b\u53c2\u6570 (The Funnel)<\/h4>\n\n\n\n<p>\u60f3\u8c61\u4e00\u4e2a\u6f0f\u6597\uff0c\u6570\u636e\u91cf\u5c42\u5c42\u9012\u51cf\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u5168\u5e93 (Millions)<\/strong> -><\/li>\n\n\n\n<li><strong>Dense Top 20 &amp; Sparse Top 20<\/strong>\uff08\u5206\u522b\u635e 20 \u4e2a\uff09 -><\/li>\n\n\n\n<li><strong>RRF \u878d\u5408\u6c60 (\u6700\u591a 40 \u4e2a)<\/strong> -><\/li>\n\n\n\n<li><strong>Rerank \u5019\u9009\u6570 (Top 30)<\/strong>\uff08\u6311\u51fa\u524d 30 \u9001\u53bb\u7cbe\u6392\uff0c\u9001\u591a\u4e86 API \u8d39\u94b1\u4e14\u6162\uff0c\u9001\u5c11\u4e86\u6015\u6f0f\uff09 -><\/li>\n\n\n\n<li><strong>\u6700\u7ec8\u8fd4\u56de K (Top 5)<\/strong>\uff08\u6700\u7ec8\u5582\u7ed9 ChatGPT\/Claude \u7b49\u5927\u6a21\u578b\u7684\u53ea\u6709\u524d 5 \u4e2a\uff0c\u56e0\u4e3a\u7ed9\u592a\u591a\u5927\u6a21\u578b\u4f1a\u201c\u6ce8\u610f\u529b\u6da3\u6563\u201d\uff09\u3002<\/li>\n<\/ul>\n\n\n\n<h4 class=\"wp-block-heading\">2. \u6700\u5bb9\u6613\u72af\u7684\u9519\uff1a\u672c\u672b\u5012\u7f6e\u7684\u8c03\u4f18\u987a\u5e8f<\/h4>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p><em>\u6587\u4e2d\u8bf4\uff1a\u201c\u5f88\u591a\u56e2\u961f\u4e00\u4e0a\u6765\u5c31\u8c03 Reranker\uff0c\u7ed3\u679c\u5176\u5b9e\u662f\u53ec\u56de\u9636\u6bb5\u5df2\u7ecf\u6f0f\u6389\u4e86\u5173\u952e chunk...\u201d<\/em><\/p>\n<\/blockquote>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u6bd4\u55bb\uff1a<\/strong> \u8b66\u5bdf\u6293\u5c0f\u5077\u3002<strong>\u53ec\u56de\u9636\u6bb5<\/strong>\u662f\u5728\u5168\u57ce\u5708\u5b9a 100 \u4e2a\u5acc\u7591\u4eba\uff0c<strong>\u91cd\u6392\u9636\u6bb5<\/strong>\u662f\u6d4b\u8c0e\u4eea\u3002\u5982\u679c\u771f\u6b63\u7684\u7f6a\u72af\u6839\u672c\u6ca1\u88ab\u6293\u8fdb\u90a3 100 \u4e2a\u4eba\u91cc\uff08\u53ec\u56de\u5931\u8d25\uff09\uff0c\u6d4b\u8c0e\u4eea\u518d\u9ad8\u7ea7\u4e5f\u6ca1\u7528\u3002<\/li>\n\n\n\n<li><strong>\u6b63\u786e\u505a\u6cd5\uff1a<\/strong> \u5148\u4e0d\u7ba1\u6392\u5e8f\u7ed3\u679c\uff0c\u770b\u4f60\u60f3\u627e\u7684\u90a3\u6bb5\u6587\u672c\uff0c\u6709\u6ca1\u6709\u51fa\u73b0\u5728 Top 20 \u91cc\u9762\uff1f\u5982\u679c\u6ca1\u6709\uff0c\u4f60\u9700\u8981\u4f18\u5316\u5206\u5757\u7b56\u7565\uff08Chunking\uff09\u3001\u6362\u66f4\u597d\u7684 Embedding \u6a21\u578b\uff0c\u6216\u8005\u52a0\u5173\u952e\u5b57\u3002\u786e\u4fdd\u76ee\u6807\u5728 Top 20 \u91cc\u9762\u540e\uff0c\u518d\u53bb\u52a0 Reranker \u628a\u5b83\u63d0\u62d4\u5230 Top 1\u3002<\/li>\n<\/ul>\n\n\n\n<h4 class=\"wp-block-heading\">3. \u4e09\u5927\u6838\u5fc3\u6307\u6807\u626b\u76f2<\/h4>\n\n\n\n<p>\u4e3a\u4e86\u79d1\u5b66\u8bc4\u4f30\u7cfb\u7edf\uff0c\u4e1a\u754c\u901a\u5e38\u770b\u8fd9\u4e09\u4e2a\u6307\u6807\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Recall@20\uff08\u53ec\u56de\u7387\uff09\uff1a<\/strong>\n<ul class=\"wp-block-list\">\n<li><em>\u5927\u767d\u8bdd\uff1a<\/em> \u6570\u636e\u5e93\u91cc\u6709\u6b63\u786e\u7b54\u6848\uff0c\u5728\u524d 20 \u4e2a\u641c\u7d22\u7ed3\u679c\u4e2d\uff0c\u6b63\u786e\u7b54\u6848\u51fa\u73b0\u4e86\u5417\uff1f\u51fa\u73b0\u4e86\u5c31\u662f 1\uff0c\u6ca1\u51fa\u73b0\u5c31\u662f 0\u3002\u8d8a\u9ad8\u8d8a\u597d\uff0c\u8bf4\u660e\u201c\u6ca1\u6f0f\u6389\u201d\u3002<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>MRR (Mean Reciprocal Rank\uff0c\u5e73\u5747\u5012\u6570\u6392\u540d)\uff1a<\/strong>\n<ul class=\"wp-block-list\">\n<li><em>\u5927\u767d\u8bdd\uff1a<\/em> \u6b63\u786e\u7b54\u6848\u6392\u5728\u7b2c\u51e0\u540d\uff1f\u6392\u7b2c 1\uff0c\u5f97\u5206 1\/1 = 1\u3002\u6392\u7b2c 2\uff0c\u5f97\u5206 1\/2 = 0.5\u3002\u6392\u7b2c 5\uff0c\u5f97\u5206 1\/5 = 0.2\u3002\u8fd9\u4e2a\u6307\u6807\u60e9\u7f5a\u90a3\u4e9b\u628a\u6b63\u786e\u7b54\u6848\u6392\u5728\u540e\u9762\u7684\u7cfb\u7edf\u3002<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>nDCG@10 (\u5f52\u4e00\u5316\u6298\u635f\u7d2f\u79ef\u589e\u76ca)\uff1a<\/strong>\n<ul class=\"wp-block-list\">\n<li><em>\u5927\u767d\u8bdd\uff1a<\/em> \u6709\u4e9b\u67e5\u8be2\u6709\u591a\u4e2a\u597d\u7b54\u6848\uff0c\u6709\u4e9b\u7b54\u6848\u201c\u6781\u5176\u76f8\u5173\u201d\uff0c\u6709\u4e9b\u201c\u4e00\u822c\u76f8\u5173\u201d\u3002nDCG \u4f1a\u770b\u4f60\u662f\u4e0d\u662f\u628a\u201c\u6781\u5176\u76f8\u5173\u201d\u7684\u6392\u5728\u4e86\u6700\u4e0a\u9762\uff0c\u201c\u4e00\u822c\u76f8\u5173\u201d\u7684\u7d27\u968f\u5176\u540e\u3002\u6392\u5e8f\u8d8a\u5b8c\u7f8e\uff0c\u5f97\u5206\u8d8a\u63a5\u8fd1 1\u3002<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">\u603b\u7ed3<\/h3>\n\n\n\n<p>\u8fd9\u7bc7\u5185\u5bb9\u5b9e\u9645\u4e0a\u52fe\u52d2\u51fa\u4e86\u4e00\u5957<strong>\u6807\u51c6\u7684\u5de5\u4e1a\u7ea7 RAG \u68c0\u7d22\u67b6\u6784<\/strong>\uff1a<br>\u7528\u6237\u63d0\u95ee -&gt; \u5411\u91cf\u53ec\u56de (Milvus\/Faiss) + \u5173\u952e\u8bcd\u53ec\u56de (ES\/BM25) -&gt; RRF \u878d\u5408\u53bb\u91cd -&gt; Reranker \u6a21\u578b\u7cbe\u51c6\u91cd\u6392 -&gt; Top 3 \u5582\u7ed9 LLM \u751f\u6210\u7b54\u6848\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u7b2c9\u5c0f\u8282\uff1a\u5411\u91cf\u6570\u636e\u5e93\u7684\u539f\u7406\u4e0e\u9009\u578b mysql\u4f60\u5199\u6210json\u6587\u4ef6\uff0c\u68c0\u7d22\u7684\u65f6\u5019\uff0c\u4f60\u5fc5\u987b\u628a\u6240\u6709\u5411\u91cf\u90fd\u8bfb\u51fa\u6765\uff0c\u5728\u5185\u5b58\u91cc\u9010\u4e2a\u8ba1\u7b97\u76f8\u4f3c\u5ea6\u3002\u8fd9\u5c31 &#8230;<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"emotion":"","emotion_color":"","title_style":"","license":"","footnotes":""},"categories":[1],"tags":[],"class_list":["post-1875","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"_links":{"self":[{"href":"https:\/\/eve2333.top\/index.php?rest_route=\/wp\/v2\/posts\/1875","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/eve2333.top\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/eve2333.top\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/eve2333.top\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/eve2333.top\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=1875"}],"version-history":[{"count":4,"href":"https:\/\/eve2333.top\/index.php?rest_route=\/wp\/v2\/posts\/1875\/revisions"}],"predecessor-version":[{"id":1881,"href":"https:\/\/eve2333.top\/index.php?rest_route=\/wp\/v2\/posts\/1875\/revisions\/1881"}],"wp:attachment":[{"href":"https:\/\/eve2333.top\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1875"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/eve2333.top\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=1875"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/eve2333.top\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=1875"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}