{"id":119510,"date":"2026-10-29T21:56:46","date_gmt":"2026-10-29T13:56:46","guid":{"rendered":"https:\/\/www.wsisp.com\/helps\/119510.html"},"modified":"2026-10-29T21:56:46","modified_gmt":"2026-10-29T13:56:46","slug":"rag-%e9%87%8d%e6%8e%92%e5%80%99%e9%80%89%e5%8f%96%e5%a4%9a%e5%b0%91%e6%9d%a1%ef%bc%9fk-%e4%bb%8e-10-%e5%8a%a0%e5%88%b0-800%ef%bc%8cprecision10-%e7%94%b1-0-29-0-38-%e5%8d%87%e5%88%b0-0-97","status":"publish","type":"post","link":"https:\/\/www.wsisp.com\/helps\/119510.html","title":{"rendered":"RAG \u91cd\u6392\u5019\u9009\u53d6\u591a\u5c11\u6761\uff1fK \u4ece 10 \u52a0\u5230 800\uff0cprecision@10 \u7531 0.29\u20130.38 \u5347\u5230 0.97\u20130.99\uff083 \u8f6e\u5b9e\u6d4b\uff09"},"content":{"rendered":"<h3>\u6458\u8981<\/h3>\n<p>3 \u4e07\u6761\u5408\u6210\u5411\u91cf\u3001100 \u6761\u67e5\u8be2\u30013 \u4e2a\u79cd\u5b50&#xff1a;\u4e0d\u91cd\u6392\u65f6 precision&#064;10 \u53ea\u6709 0.293\u20130.381&#xff1b;\u91cd\u6392\u6df1\u5ea6 K&#061;100 \u65f6 0.775\u20130.820&#xff0c;K&#061;200 \u65f6 0.879\u20130.909&#xff0c;K&#061;800 \u624d\u5230 0.972\u20130.990\u3002\u6bcf\u7ffb\u4e00\u500d K \u7684\u589e\u91cf\u4ece &#043;0.17\u20130.19 \u6389\u5230 &#043;0.03\u20130.05&#xff0c;\u800c\u5019\u9009\u91cd\u7b97\u8017\u65f6\u4ece 0.006\u20130.013 ms \u6da8\u5230 0.044\u20130.046 ms&#xff0c;\u62d0\u70b9\u5728 100\u2013200\u3002<\/p>\n<h3>\u4e00\u3001K \u51b3\u5b9a\u7684\u662f&#034;\u91cd\u6392\u80fd\u770b\u5230\u4ec0\u4e48&#034;<\/h3>\n<p>RAG \u7684\u68c0\u7d22\u4e00\u822c\u662f\u4e24\u6bb5&#xff1a;\u5411\u91cf\u7d22\u5f15\u6216\u53ec\u56de\u6a21\u578b\u5148\u7ed9\u51fa K \u6761\u5019\u9009&#xff0c;\u91cd\u6392\u6a21\u578b&#xff08;cross-encoder&#xff0c;\u6216\u5e26\u4e1a\u52a1\u7ea6\u675f\u7684\u6253\u5206\u5668&#xff09;\u518d\u4ece\u8fd9 K \u6761\u91cc\u6311\u51fa\u6700\u7ec8 top-N\u3002K \u53d6\u591a\u5c11&#xff0c;\u7f51\u4e0a\u5e38\u89c1 50\u3001100\u3001200 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\u7684\u66f2\u7ebf&#xff0c;\u5e76\u7ed9\u51fa\u5b9a K \u7684\u6b65\u9aa4\u3002<\/p>\n<h3>\u4e8c\u3001\u5b9e\u9a8c\u8bbe\u7f6e&#xff1a;\u53ea\u52a8 K \u8fd9\u4e00\u4e2a\u53d8\u91cf<\/h3>\n<p>\u5408\u6210\u6570\u636e&#xff1a;3 \u4e07\u6761 64 \u7ef4\u6587\u6863\u5411\u91cf&#xff0c;200 \u4e2a\u4e3b\u9898\u3002\u6587\u6863\u5411\u91cf &#061; \u4e3b\u9898\u4e2d\u5fc3 &#043; \u6bcf\u7ef4 0.09 \u7684\u566a\u58f0 &#043; 0.35 \u00d7 aspect \u00d7 \u516c\u5171\u65b9\u5411\u3002\u6bcf\u4e2a\u6587\u6863\u5e26\u4e00\u4e2a\u4e8c\u5143\u5c5e\u6027 aspect&#xff0c;\u67e5\u8be2\u4e5f\u5e26\u76ee\u6807 aspect&#xff0c;\u76f8\u5173\u6587\u6863\u5b9a\u4e49\u4e3a&#034;\u540c\u4e3b\u9898\u4e14 aspect \u76f8\u540c&#034;&#xff0c;\u6bcf\u4e2a\u67e5\u8be2\u5e73\u5747 74.1\u201376.0 \u6761\u3002<\/p>\n<p>\u4e09\u4e2a\u9636\u6bb5&#xff1a;<\/p>\n<ul>\n<li>\u4e00\u9636\u6bb5&#xff1a;\u628a 64 \u7ef4\u968f\u673a\u6295\u5f71\u5230 16 \u7ef4&#xff0c;\u6a21\u62df\u7d22\u5f15\u91cc\u53ea\u5b58\u538b\u7f29\u6216\u4f4e\u7ef4\u5411\u91cf&#xff0c;\u6309\u8be5\u5206\u6570\u53d6 top-K&#xff1b;<\/li>\n<li>\u4e8c\u9636\u6bb5&#xff08;\u91cd\u6392\u66ff\u8eab&#xff09;&#xff1a;\u5148\u7cbe\u786e\u5339\u914d aspect&#xff0c;\u518d\u6309 64 \u7ef4\u5168\u7cbe\u5ea6\u4f59\u5f26\u6392\u5e8f&#xff0c;\u53d6\u524d 10\u3002\u5b83\u4e0d\u662f cross-encoder&#xff0c;\u53ea\u662f&#034;\u91cd\u6392\u5668\u80fd\u8bfb\u61c2\u7ed3\u6784\u5316\u7ea6\u675f &#043; \u5168\u7cbe\u5ea6\u6253\u5206&#034;\u7684\u6700\u5c0f\u66ff\u8eab&#xff1b;<\/li>\n<li>\u5bf9\u7167&#xff1a;\u4e0d\u505a\u91cd\u6392&#xff0c;\u76f4\u63a5\u53d6\u4e00\u9636\u6bb5 top-10\u3002<\/li>\n<\/ul>\n<p>\u4e3a\u4ec0\u4e48\u7528\u5408\u6210\u6570\u636e\u800c\u4e0d\u662f\u73b0\u6210\u8bed\u6599&#xff1f;\u56e0\u4e3a\u8981\u5355\u72ec\u52a8 K&#xff0c;\u5c31\u5fc5\u987b\u8ba9&#034;\u76f8\u5173\u6027&#034;\u6709\u786e\u5b9a\u7b54\u6848\u3002\u771f\u5b9e\u8bed\u6599\u91cc\u7684\u4eba\u5de5\u6807\u6ce8\u4f1a\u628a\u6807\u6ce8\u566a\u58f0\u4e00\u8d77\u5e26\u8fdb\u6765&#xff0c;K \u4ece 10 \u52a0\u5230 800 \u7684\u5dee\u5f02\u53ef\u80fd\u88ab\u566a\u58f0\u5403\u6389\u3002\u8fd9\u91cc\u7684 aspect \u5c5e\u6027\u5c31\u662f\u4e00\u4e2a\u4eba\u5de5\u53ef\u63a7\u7684&#034;\u7ed3\u6784\u5316\u7ea6\u675f&#034;&#xff0c;\u5b83\u540c\u65f6\u51fa\u73b0\u5728\u67e5\u8be2\u548c\u6587\u6863\u91cc&#xff0c;\u4e00\u9636\u6bb5\u7684\u538b\u7f29\u5411\u91cf\u53ea\u80fd\u90e8\u5206\u611f\u77e5&#xff0c;\u4e8c\u9636\u6bb5\u80fd\u7cbe\u786e\u8bfb\u53d6\u2014\u2014\u8fd9\u4e2a\u5dee\u5f02\u6b63\u662f\u91cd\u6392\u4ef7\u503c\u7684\u6765\u6e90\u3002<\/p>\n<p>3 \u4e2a\u968f\u673a\u79cd\u5b50\u5404\u8dd1\u4e00\u8f6e&#xff0c;\u6bcf\u8f6e\u72ec\u7acb\u8fdb\u7a0b&#xff0c;\u8868\u4e2d\u7ed9\u533a\u95f4\u3002\u73af\u5883\u662f Python 3.11.5 &#043; numpy 2.4.6&#xff0c;Windows \u4e0b\u9700\u8981 PYTHONIOENCODING&#061;utf-8 \u624d\u80fd\u6b63\u5e38\u8f93\u51fa\u4e2d\u6587\u3002<\/p>\n<p>\u5148\u8bf4\u8fb9\u754c&#xff1a;\u8fd9\u4e9b\u6570\u5b57\u8bc1\u660e\u7684\u662f\u6392\u5e8f\u673a\u5236\u7684\u8d70\u5411&#xff0c;\u4e0d\u4ee3\u8868\u4efb\u4f55\u5177\u4f53 embedding \u6a21\u578b\u6216\u5411\u91cf\u5e93\u7684\u6548\u679c&#xff1b;\u6beb\u79d2\u6570\u53ea\u4ee3\u8868\u672c\u673a numpy \u7684\u7b97\u529b\u3002\u4f60\u81ea\u5df1\u4e1a\u52a1\u7684 K&#xff0c;\u5fc5\u987b\u7528\u4f60\u7684\u6570\u636e\u91cd\u8dd1\u3002<\/p>\n<h3>\u4e09\u3001\u7cbe\u5ea6&#xff1a;100 \u662f\u660e\u663e\u7684\u62d0\u70b9<\/h3>\n<p>\u8868 1&#xff1a;\u91cd\u6392\u6df1\u5ea6\u4e0e precision&#064;10&#xff08;3 \u8f6e\u533a\u95f4&#xff09;<\/p>\n<table>\n<tr>Kprecision&#064;10\u5019\u9009\u91cc\u7684\u76f8\u5173\u6587\u6863\u6570&#xff08;\u5747\u503c&#xff09;<\/tr>\n<tbody>\n<tr>\n<td>\u4e0d\u91cd\u6392<\/td>\n<td>0.293\u20130.381<\/td>\n<td>2.9\u20133.8<\/td>\n<\/tr>\n<tr>\n<td>10<\/td>\n<td>0.293\u20130.381<\/td>\n<td>2.9\u20133.8<\/td>\n<\/tr>\n<tr>\n<td>20<\/td>\n<td>0.475\u20130.571<\/td>\n<td>5.5\u20137.2<\/td>\n<\/tr>\n<tr>\n<td>50<\/td>\n<td>0.663\u20130.739<\/td>\n<td>12.4\u201315.3<\/td>\n<\/tr>\n<tr>\n<td>100<\/td>\n<td>0.775\u20130.820<\/td>\n<td>20.1\u201324.4<\/td>\n<\/tr>\n<tr>\n<td>200<\/td>\n<td>0.879\u20130.909<\/td>\n<td>29.3\u201334.3<\/td>\n<\/tr>\n<tr>\n<td>400<\/td>\n<td>0.926\u20130.958<\/td>\n<td>40.1\u201344.1<\/td>\n<\/tr>\n<tr>\n<td>800<\/td>\n<td>0.972\u20130.990<\/td>\n<td>50.6\u201353.6<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>\u4e09\u70b9\u503c\u5f97\u6ce8\u610f&#xff1a;<\/p>\n<li>K&#061;10 \u7684\u91cd\u6392\u548c\u4e0d\u91cd\u6392\u5b8c\u5168\u4e00\u6837&#xff08;\u90fd\u662f 0.293\u20130.381&#xff09;\u3002\u56e0\u4e3a\u5019\u9009\u96c6\u5408\u5c31\u662f\u539f\u6765\u90a3 10 \u6761&#xff0c;\u91cd\u6392\u53ea\u80fd\u6362\u987a\u5e8f&#xff0c;\u6362\u4e0d\u51fa\u65b0\u6587\u6863\u3002K \u5fc5\u987b\u5927\u4e8e\u6700\u7ec8\u6761\u6570\u624d\u6709\u610f\u4e49\u3002<\/li>\n<li>\u6bcf\u7ffb\u4e00\u500d K \u7684\u589e\u91cf&#xff1a;20\u219250 \u662f &#043;0.17\u20130.19&#xff0c;50\u2192100 \u662f &#043;0.08\u20130.14&#xff0c;100\u2192200 \u662f &#043;0.06\u20130.11&#xff0c;200\u2192400 \u662f &#043;0.05\u20130.06&#xff0c;400\u2192800 \u53ea\u5269 &#043;0.03\u20130.05\u3002\u62d0\u70b9\u5728 100\u2013200 \u4e4b\u95f4\u3002<\/li>\n<li>800 \u6761\u5019\u9009\u4e5f\u5230\u4e0d\u4e86 1.0&#xff0c;\u56e0\u4e3a\u4e00\u9636\u6bb5\u5019\u9009\u672c\u8eab\u5c31\u4e0d\u5168\u3002\u7ee7\u7eed\u52a0 K \u662f\u5728\u903c\u8fd1\u4e00\u9636\u6bb5\u7684\u5929\u82b1\u677f&#xff0c;\u4e0d\u662f\u89e3\u51b3\u91cd\u6392\u7684\u95ee\u9898\u3002<\/li>\n<p>\u8868 1 \u6700\u540e\u4e00\u5217\u53ef\u4ee5\u76f4\u63a5\u89e3\u91ca\u7b2c 1 \u70b9&#xff1a;K&#061;10 \u65f6\u5019\u9009\u91cc\u5e73\u5747\u53ea\u6709 2.9\u20133.8 \u6761\u76f8\u5173\u6587\u6863&#xff0c;\u6240\u4ee5 precision&#064;10 \u6700\u591a\u4e5f\u5c31\u662f 0.29\u20130.38&#xff1b;K&#061;100 \u65f6\u8fd9\u4e2a\u6570\u662f 20.1\u201324.4&#xff0c;\u5df2\u7ecf\u591f\u586b\u6ee1 10 \u4e2a\u4f4d\u7f6e&#xff0c;\u7cbe\u5ea6\u5c31\u7531\u91cd\u6392\u672c\u8eab\u51b3\u5b9a\u3002\u6362\u53e5\u8bdd\u8bf4&#xff0c;\u7cbe\u5ea6 &#061; min(1, \u5019\u9009\u91cc\u7684\u76f8\u5173\u6570 \/ 10) \u00d7 \u91cd\u6392\u6392\u5e8f\u8d28\u91cf&#xff0c;K \u53ea\u5f71\u54cd\u524d\u4e00\u9879\u3002\u8fd9\u4e5f\u610f\u5473\u7740&#xff0c;\u5f53\u5019\u9009\u91cc\u7684\u76f8\u5173\u6570\u5df2\u7ecf\u8d85\u8fc7 10 \u4e4b\u540e&#xff0c;\u518d\u52a0\u6df1 K \u7684\u6536\u76ca\u4f1a\u660e\u663e\u53d8\u7f13\u3002<\/p>\n<h3>\u56db\u3001\u5ef6\u8fdf&#xff1a;\u91cd\u7b97\u8017\u65f6\u968f K \u7ebf\u6027\u6da8<\/h3>\n<p>\u8868 2&#xff1a;\u6bcf\u67e5\u8be2\u8017\u65f6&#xff08;\u6beb\u79d2&#xff0c;3 \u8f6e\u533a\u95f4&#xff09;<\/p>\n<table>\n<tr>K\u91cd\u6392\u8017\u65f6\u603b\u8017\u65f6&#xff08;\u542b\u4e00\u9636\u6bb5\u626b\u63cf&#xff09;<\/tr>\n<tbody>\n<tr>\n<td>10<\/td>\n<td>0.006\u20130.013<\/td>\n<td>0.020\u20130.028<\/td>\n<\/tr>\n<tr>\n<td>100<\/td>\n<td>0.009\u20130.010<\/td>\n<td>0.023\u20130.026<\/td>\n<\/tr>\n<tr>\n<td>400<\/td>\n<td>0.023\u20130.025<\/td>\n<td>0.037\u20130.041<\/td>\n<\/tr>\n<tr>\n<td>800<\/td>\n<td>0.044\u20130.046<\/td>\n<td>0.058\u20130.062<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>\u4e00\u9636\u6bb5\u626b\u63cf\u56fa\u5b9a\u5728 0.014\u20130.016 ms\u3002\u8fd9\u91cc\u5fc5\u987b\u5f3a\u8c03&#xff1a;\u6211\u6d4b\u5230\u7684\u53ea\u662f numpy \u7684\u5019\u9009\u91cd\u7b97\u5f00\u9500\u3002\u751f\u4ea7\u91cc\u7684 cross-encoder \u662f\u6bcf\u4e2a\u5019\u9009\u4e00\u6b21\u6a21\u578b\u524d\u5411&#xff0c;\u5355\u4ef7\u53ef\u80fd\u662f\u8fd9\u91cc\u7684\u51e0\u767e\u4e0a\u5343\u500d&#xff0c;\u6240\u4ee5&#034;K \u4ece 100 \u52a0\u5230 400&#034;\u7684\u771f\u5b9e\u4ee3\u4ef7\u8981\u7528\u4f60\u7684\u91cd\u6392\u5355\u4ef7\u53bb\u4e58&#xff0c;\u4e0d\u80fd\u62ff\u8fd9\u5f20\u8868\u5f53\u6210\u672c\u7ed3\u8bba\u3002\u8fd9\u5f20\u8868\u80fd\u8bf4\u660e\u7684\u53ea\u6709\u4e00\u4ef6\u4e8b&#xff1a;\u91cd\u6392\u662f O(K) \u7684&#xff0c;K \u7ffb 8 \u500d&#xff0c;\u91cd\u6392\u8017\u65f6\u4e5f\u4ece 0.006\u20130.013 ms \u6da8\u5230 0.044\u20130.046 ms\u3002<\/p>\n<p>#mermaid-svg-QiHU3kahHuUdlQGO{font-family:\\&#8221;trebuchet ms\\&#8221;,verdana,arial,sans-serif;font-size:16px;fill:#333;}@keyframes edge-animation-frame{from{stroke-dashoffset:0;}}@keyframes dash{to{stroke-dashoffset:0;}}#mermaid-svg-QiHU3kahHuUdlQGO .edge-animation-slow{stroke-dasharray:9,5!important;stroke-dashoffset:900;animation:dash 50s linear 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.label{text-anchor:middle;}#mermaid-svg-QiHU3kahHuUdlQGO .node .katex path{fill:#000;stroke:#000;stroke-width:1px;}#mermaid-svg-QiHU3kahHuUdlQGO .rough-node .label,#mermaid-svg-QiHU3kahHuUdlQGO .node .label,#mermaid-svg-QiHU3kahHuUdlQGO .image-shape .label,#mermaid-svg-QiHU3kahHuUdlQGO .icon-shape .label{text-align:center;}#mermaid-svg-QiHU3kahHuUdlQGO .node.clickable{cursor:pointer;}#mermaid-svg-QiHU3kahHuUdlQGO .root .anchor path{fill:#333333!important;stroke-width:0;stroke:#333333;}#mermaid-svg-QiHU3kahHuUdlQGO .arrowheadPath{fill:#333333;}#mermaid-svg-QiHU3kahHuUdlQGO .edgePath .path{stroke:#333333;stroke-width:2.0px;}#mermaid-svg-QiHU3kahHuUdlQGO .flowchart-link{stroke:#333333;fill:none;}#mermaid-svg-QiHU3kahHuUdlQGO .edgeLabel{background-color:rgba(232,232,232, 0.8);text-align:center;}#mermaid-svg-QiHU3kahHuUdlQGO .edgeLabel p{background-color:rgba(232,232,232, 0.8);}#mermaid-svg-QiHU3kahHuUdlQGO .edgeLabel rect{opacity:0.5;background-color:rgba(232,232,232, 0.8);fill:rgba(232,232,232, 0.8);}#mermaid-svg-QiHU3kahHuUdlQGO .labelBkg{background-color:rgba(232, 232, 232, 0.5);}#mermaid-svg-QiHU3kahHuUdlQGO .cluster rect{fill:#ffffde;stroke:#aaaa33;stroke-width:1px;}#mermaid-svg-QiHU3kahHuUdlQGO .cluster text{fill:#333;}#mermaid-svg-QiHU3kahHuUdlQGO .cluster span{color:#333;}#mermaid-svg-QiHU3kahHuUdlQGO div.mermaidTooltip{position:absolute;text-align:center;max-width:200px;padding:2px;font-family:\\&#8221;trebuchet ms\\&#8221;,verdana,arial,sans-serif;font-size:12px;background:hsl(80, 100%, 96.2745098039%);border:1px solid #aaaa33;border-radius:2px;pointer-events:none;z-index:100;}#mermaid-svg-QiHU3kahHuUdlQGO .flowchartTitleText{text-anchor:middle;font-size:18px;fill:#333;}#mermaid-svg-QiHU3kahHuUdlQGO rect.text{fill:none;stroke-width:0;}#mermaid-svg-QiHU3kahHuUdlQGO .icon-shape,#mermaid-svg-QiHU3kahHuUdlQGO .image-shape{background-color:rgba(232,232,232, 0.8);text-align:center;}#mermaid-svg-QiHU3kahHuUdlQGO .icon-shape p,#mermaid-svg-QiHU3kahHuUdlQGO .image-shape p{background-color:rgba(232,232,232, 0.8);padding:2px;}#mermaid-svg-QiHU3kahHuUdlQGO .icon-shape .label rect,#mermaid-svg-QiHU3kahHuUdlQGO .image-shape .label rect{opacity:0.5;background-color:rgba(232,232,232, 0.8);fill:rgba(232,232,232, 0.8);}#mermaid-svg-QiHU3kahHuUdlQGO .label-icon{display:inline-block;height:1em;overflow:visible;vertical-align:-0.125em;}#mermaid-svg-QiHU3kahHuUdlQGO .node .label-icon path{fill:currentColor;stroke:revert;stroke-width:revert;}#mermaid-svg-QiHU3kahHuUdlQGO :root{&#8211;mermaid-font-family:\\&#8221;trebuchet ms\\&#8221;,verdana,arial,sans-serif;}<span class=\"edgeLabel\"><\/span><span class=\"edgeLabel\"><\/span><span class=\"edgeLabel\"><\/p>\n<p>\u592a\u5c0f<\/p>\n<p><\/span><span class=\"edgeLabel\"><\/p>\n<p>\u5408\u9002<\/p>\n<p><\/span><span class=\"edgeLabel\"><\/span><span class=\"edgeLabel\"><\/p>\n<p>\u8fc7\u5927<\/p>\n<p><\/span><span class=\"nodeLabel\"><\/p>\n<p>\u67e5\u8be2<\/p>\n<p><\/span><span class=\"nodeLabel\"><\/p>\n<p>\u4e00\u9636\u6bb5&#xff1a;\u538b\u7f29\u5411\u91cf\u53d6 top-K<\/p>\n<p><\/span><span class=\"nodeLabel\"><\/p>\n<p>K \u53d6\u591a\u5927<\/p>\n<p><\/span><span class=\"nodeLabel\"><\/p>\n<p>\u76f8\u5173\u6587\u6863\u6ca1\u8fdb\u5019\u9009\u91cd\u6392\u65e0\u6cd5\u8865\u6551<\/p>\n<p><\/span><span class=\"nodeLabel\"><\/p>\n<p>\u4e8c\u9636\u6bb5&#xff1a;\u7ea6\u675f\u5339\u914d &#043; \u5168\u7cbe\u5ea6\u91cd\u6392<\/p>\n<p><\/span><span class=\"nodeLabel\"><\/p>\n<p>\u6700\u7ec8 top-10<\/p>\n<p><\/span><span class=\"nodeLabel\"><\/p>\n<p>\u6bcf\u4e2a\u5019\u9009\u4e00\u6b21\u524d\u5411\u6210\u672c\u7ebf\u6027\u4e0a\u6da8<\/p>\n<p><\/span><\/p>\n<h3>\u4e94\u3001\u5b9a K \u7684\u53ef\u6267\u884c\u6b65\u9aa4<\/h3>\n<li>\u5148\u91cf\u4e00\u9636\u6bb5\u7684\u4e0a\u9650&#xff1a;\u7528\u6807\u6ce8\u96c6\u7b97&#034;\u771f\u76f8\u5173\u6587\u6863\u843d\u5728 top-K \u91cc\u7684\u6bd4\u4f8b&#034;&#xff0c;\u8fd9\u5c31\u662f\u91cd\u6392\u80fd\u8fbe\u5230\u7684\u6781\u9650\u3002K \u52a0\u5230\u8fd9\u4e2a\u6bd4\u4f8b\u4e0d\u518d\u6da8&#xff0c;\u518d\u52a0\u5c31\u662f\u7eaf\u6d6a\u8d39\u3002<\/li>\n<li>\u5b9a\u7cbe\u5ea6\u76ee\u6807&#xff0c;\u518d\u9009\u6700\u5c0f K&#xff1a;\u672c\u5b9e\u9a8c\u91cc\u8981\u5230 0.90 \u5de6\u53f3&#xff0c;K \u53d6 200&#xff08;0.879\u20130.909&#xff09;&#xff1b;\u8981\u5230 0.80&#xff0c;K&#061;100 \u5c31\u591f&#xff08;0.775\u20130.820&#xff09;\u3002<\/li>\n<li>\u4e58\u91cd\u6392\u5355\u4ef7\u505a\u9884\u7b97&#xff1a;\u6210\u672c\u7ea6\u7b49\u4e8e \u67e5\u8be2\u91cf \u00d7 K \u00d7 \u5355\u5019\u9009\u524d\u5411\u6210\u672c\u3002\u5148\u7ed9\u4e00\u4e2a\u5ef6\u8fdf\u4e0a\u9650&#xff08;\u6bd4\u5982 P99 \u53ea\u8bb8\u589e\u52a0 30 ms&#xff09;&#xff0c;\u518d\u53cd\u63a8 K\u3002<\/li>\n<li>K \u5df2\u7ecf\u5f88\u5927\u7cbe\u5ea6\u8fd8\u4f4e&#xff0c;\u5148\u53bb\u67e5\u4e00\u9636\u6bb5&#xff1a;\u672c\u5b9e\u9a8c 800 \u6761\u5019\u9009\u4e5f\u53ea\u6709 0.972\u20130.990&#xff0c;\u5269\u4e0b\u7684\u7f3a\u53e3\u6765\u81ea\u53ec\u56de&#xff0c;\u4e0d\u6765\u81ea\u91cd\u6392\u3002<\/li>\n<li>\u7ebf\u4e0a\u7528&#034;\u91cd\u6392\u540e top-10 \u4e0e\u4eba\u5de5\u6807\u6ce8\u7684\u91cd\u5408\u6570&#034;\u505a\u56de\u5f52&#xff0c;\u4e0d\u8981\u53ea\u770b\u79bb\u7ebf recall\u2014\u2014\u76f8\u5173\u96c6\u5927\u65f6 recall \u5929\u7136\u5f88\u4f4e&#xff0c;\u672c\u5b9e\u9a8c\u6bcf\u6761\u67e5\u8be2\u7ea6 75 \u6761\u76f8\u5173\u6587\u6863&#xff0c;recall&#064;10 \u7684\u7406\u8bba\u4e0a\u9650\u53ea\u6709 10\/75\u3002<\/li>\n<p>\u53e6\u5916&#xff0c;K \u7684\u53d6\u503c\u5efa\u8bae\u8ddf\u7740\u67e5\u8be2\u7c7b\u578b\u8d70&#xff0c;\u800c\u4e0d\u662f\u5168\u5c40\u56fa\u5b9a\u3002\u95f2\u804a\u7c7b\u67e5\u8be2\u7684\u76f8\u5173\u6587\u6863\u591a&#xff0c;K&#061;50 \u5c31\u591f&#xff1b;\u5e26\u7ea6\u675f\u7684\u67e5\u8be2&#xff08;\u65f6\u95f4\u3001\u73af\u5883\u3001\u6743\u9650&#xff09;\u76f8\u5173\u6587\u6863\u5c11&#xff0c;\u4e00\u9636\u6bb5\u66f4\u5bb9\u6613\u6f0f&#xff0c;K \u53cd\u800c\u8981\u52a0\u5927\u5230 200 \u4ee5\u4e0a\u3002\u672c\u5b9e\u9a8c\u4e4b\u6240\u4ee5\u5728 100\u2013200 \u51fa\u73b0\u62d0\u70b9&#xff0c;\u5c31\u662f\u56e0\u4e3a\u5728\u8fd9\u4e2a\u566a\u58f0\u548c\u7ef4\u5ea6\u4e0b&#xff0c;\u5019\u9009\u91cc\u7684\u76f8\u5173\u6570\u5927\u7ea6\u5728\u8fd9\u4e2a\u6df1\u5ea6\u624d\u7a33\u5b9a\u8d85\u8fc7 10\u3002<\/p>\n<h3>\u516d\u3001\u6838\u5fc3\u4ee3\u7801<\/h3>\n<p>\u53d6\u5019\u9009\u4e0e\u91cd\u6392\u7684\u5173\u952e\u903b\u8f91&#xff08;\u5b8c\u6574\u811a\u672c\u89c1\u6587\u672b\u8bf4\u660e&#xff09;&#xff1a;<\/p>\n<p><span class=\"token keyword\">def<\/span> <span class=\"token function\">topk_idx<\/span><span class=\"token punctuation\">(<\/span>scores<span class=\"token punctuation\">,<\/span> k<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">:<\/span><br \/>\n    <span class=\"token triple-quoted-string string\">&#034;&#034;&#034;\u53d6\u5206\u6570\u6700\u9ad8\u7684 k \u4e2a\u4e0b\u6807&#xff0c;\u6309\u5206\u6570\u964d\u5e8f\u3002&#034;&#034;&#034;<\/span><br \/>\n    <span class=\"token keyword\">if<\/span> k <span class=\"token operator\">&gt;&#061;<\/span> scores<span class=\"token punctuation\">.<\/span>shape<span class=\"token punctuation\">[<\/span><span class=\"token number\">0<\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">:<\/span><br \/>\n        <span class=\"token keyword\">return<\/span> np<span class=\"token punctuation\">.<\/span>argsort<span class=\"token punctuation\">(<\/span><span class=\"token operator\">&#8211;<\/span>scores<span class=\"token punctuation\">)<\/span><br \/>\n    part <span class=\"token operator\">&#061;<\/span> np<span class=\"token punctuation\">.<\/span>argpartition<span class=\"token punctuation\">(<\/span><span class=\"token operator\">&#8211;<\/span>scores<span class=\"token punctuation\">,<\/span> k<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">[<\/span><span class=\"token punctuation\">:<\/span>k<span class=\"token punctuation\">]<\/span><br \/>\n    <span class=\"token keyword\">return<\/span> part<span class=\"token punctuation\">[<\/span>np<span class=\"token punctuation\">.<\/span>argsort<span class=\"token punctuation\">(<\/span><span class=\"token operator\">&#8211;<\/span>scores<span class=\"token punctuation\">[<\/span>part<span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">]<\/span><\/p>\n<p>        <span class=\"token keyword\">for<\/span> i <span class=\"token keyword\">in<\/span> <span class=\"token builtin\">range<\/span><span class=\"token punctuation\">(<\/span>N_QUERIES<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">:<\/span><br \/>\n            cand <span class=\"token operator\">&#061;<\/span> topk_idx<span class=\"token punctuation\">(<\/span>stage1<span class=\"token punctuation\">[<\/span><span class=\"token punctuation\">:<\/span><span class=\"token punctuation\">,<\/span> i<span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">,<\/span> k<span class=\"token punctuation\">)<\/span><br \/>\n            cand_gold <span class=\"token operator\">&#043;&#061;<\/span> <span class=\"token builtin\">len<\/span><span class=\"token punctuation\">(<\/span><span class=\"token builtin\">set<\/span><span class=\"token punctuation\">(<\/span>cand<span class=\"token punctuation\">.<\/span>tolist<span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">&amp;<\/span> <span class=\"token builtin\">set<\/span><span class=\"token punctuation\">(<\/span>gold<span class=\"token punctuation\">[<\/span>i<span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">.<\/span>tolist<span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><\/p>\n<p>            t1 <span class=\"token operator\">&#061;<\/span> time<span class=\"token punctuation\">.<\/span>perf_counter<span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><br \/>\n            sc <span class=\"token operator\">&#061;<\/span> exact<span class=\"token punctuation\">[<\/span>cand<span class=\"token punctuation\">,<\/span> i<span class=\"token punctuation\">]<\/span><br \/>\n            matched <span class=\"token operator\">&#061;<\/span> <span class=\"token punctuation\">(<\/span>aspect<span class=\"token punctuation\">[<\/span>cand<span class=\"token punctuation\">]<\/span> <span class=\"token operator\">&#061;&#061;<\/span> q_aspect<span class=\"token punctuation\">[<\/span>i<span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">)<\/span><br \/>\n            <span class=\"token comment\"># \u6392\u5e8f\u4e3b\u952e&#xff1a;aspect \u662f\u5426\u5339\u914d&#xff1b;\u6b21\u952e&#xff1a;\u5168\u7cbe\u5ea6\u4f59\u5f26<\/span><br \/>\n            order <span class=\"token operator\">&#061;<\/span> np<span class=\"token punctuation\">.<\/span>lexsort<span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">(<\/span><span class=\"token operator\">&#8211;<\/span>sc<span class=\"token punctuation\">,<\/span> <span class=\"token operator\">&#8211;<\/span>matched<span class=\"token punctuation\">.<\/span>astype<span class=\"token punctuation\">(<\/span>np<span class=\"token punctuation\">.<\/span>int8<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><br \/>\n            picked <span class=\"token operator\">&#061;<\/span> <span class=\"token builtin\">set<\/span><span class=\"token punctuation\">(<\/span>cand<span class=\"token punctuation\">[<\/span>order<span class=\"token punctuation\">[<\/span><span class=\"token punctuation\">:<\/span>TOP_N<span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">.<\/span>tolist<span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><br \/>\n            rerank_times<span class=\"token punctuation\">.<\/span>append<span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">(<\/span>time<span class=\"token punctuation\">.<\/span>perf_counter<span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">&#8211;<\/span> t1<span class=\"token punctuation\">)<\/span> <span class=\"token operator\">*<\/span> <span class=\"token number\">1000<\/span><span class=\"token punctuation\">)<\/span><br \/>\n            hits <span class=\"token operator\">&#043;&#061;<\/span> <span class=\"token builtin\">len<\/span><span class=\"token punctuation\">(<\/span>picked <span class=\"token operator\">&amp;<\/span> <span class=\"token builtin\">set<\/span><span class=\"token punctuation\">(<\/span>gold<span class=\"token punctuation\">[<\/span>i<span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">.<\/span>tolist<span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><\/p>\n<p>np.lexsort \u7684\u6700\u540e\u4e00\u4e2a\u952e\u662f\u4e3b\u952e&#xff0c;\u6240\u4ee5 (-sc, -matched) \u8868\u793a&#034;\u5148\u6309 aspect 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