{"id":58988,"date":"2025-08-16T19:25:27","date_gmt":"2025-08-16T11:25:27","guid":{"rendered":"https:\/\/www.wsisp.com\/helps\/58988.html"},"modified":"2025-08-16T19:25:27","modified_gmt":"2025-08-16T11:25:27","slug":"%e7%a8%a0%e5%af%86%e6%a3%80%e7%b4%a2%ef%bc%9a%e5%9f%ba%e4%ba%8e%e7%a5%9e%e7%bb%8f%e5%b5%8c%e5%85%a5%e7%9a%84%e9%ab%98%e6%95%88%e8%af%ad%e4%b9%89%e6%90%9c%e7%b4%a2%e8%8c%83%e5%bc%8f","status":"publish","type":"post","link":"https:\/\/www.wsisp.com\/helps\/58988.html","title":{"rendered":"\u7a20\u5bc6\u68c0\u7d22\uff1a\u57fa\u4e8e\u795e\u7ecf\u5d4c\u5165\u7684\u9ad8\u6548\u8bed\u4e49\u641c\u7d22\u8303\u5f0f"},"content":{"rendered":"<p>\u672c\u6587\u7531\u300c\u5927\u5343AI\u52a9\u624b\u300d\u539f\u521b\u53d1\u5e03&#xff0c;\u4e13\u6ce8\u7528\u771f\u8bdd\u8bb2AI&#xff0c;\u56de\u5f52\u6280\u672f\u672c\u8d28\u3002\u62d2\u7edd\u795e\u8bdd\u6216\u5996\u9b54\u5316\u3002\u641c\u7d22\u300c\u5927\u5343AI\u52a9\u624b\u300d\u5173\u6ce8\u6211&#xff0c;\u4e00\u8d77\u6495\u6389\u8fc7\u5ea6\u5305\u88c5&#xff0c;\u5b66\u4e60\u771f\u5b9e\u7684AI\u6280\u672f&#xff01;<\/p>\n<h5>1. \u80cc\u666f\u4e0e\u5b9a\u4e49<\/h5>\n<p>\u7a20\u5bc6\u68c0\u7d22&#xff08;Dense Retrieval&#xff09;\u662f\u4e00\u79cd\u57fa\u4e8e\u6df1\u5ea6\u5b66\u4e60\u7684\u8bed\u4e49\u641c\u7d22\u6280\u672f&#xff0c;\u5176\u6838\u5fc3\u662f\u901a\u8fc7\u795e\u7ecf\u7f51\u7edc\u5c06\u6587\u672c\u6620\u5c04\u4e3a\u4f4e\u7ef4\u7a20\u5bc6\u5411\u91cf&#xff08;\u901a\u5e38128-768\u7ef4&#xff09;&#xff0c;\u5e76\u5229\u7528\u5411\u91cf\u76f8\u4f3c\u5ea6&#xff08;\u5982\u4f59\u5f26\u76f8\u4f3c\u5ea6&#xff09;\u5b9e\u73b0\u8bed\u4e49\u5339\u914d\u3002\u76f8\u8f83\u4e8e\u4f20\u7edf\u7a00\u758f\u68c0\u7d22&#xff08;\u5982BM25\u3001TF-IDF&#xff09;&#xff0c;\u5176\u7a81\u7834\u6027\u5728\u4e8e&#xff1a;<\/p>\n<ul>\n<li>\u8bed\u4e49\u6cdb\u5316\u80fd\u529b&#xff1a;\u7406\u89e3\u540c\u4e49\u8bcd&#xff08;\u201c\u6c7d\u8f66\u201d\u2194\u201c\u8f7f\u8f66\u201d&#xff09;\u3001\u62bd\u8c61\u6982\u5ff5&#xff08;\u201c\u9ad8\u6548\u7b97\u6cd5\u201d\u2194\u201c\u4f4e\u65f6\u95f4\u590d\u6742\u5ea6\u65b9\u6cd5\u201d&#xff09;&#xff1b;<\/li>\n<li>\u7aef\u5230\u7aef\u4f18\u5316&#xff1a;\u901a\u8fc7\u76d1\u7763\u4fe1\u53f7\u76f4\u63a5\u5b66\u4e60\u67e5\u8be2\u4e0e\u6587\u6863\u7684\u5339\u914d\u5173\u7cfb&#xff0c;\u907f\u514d\u4eba\u5de5\u7279\u5f81\u5de5\u7a0b\u3002<\/li>\n<\/ul>\n<p>\u5173\u952e\u516c\u5f0f&#xff1a; \u67e5\u8be2\u5411\u91cf <span class=\"katex--inline\"><span class=\"katex\"><span class=\"katex-mathml\"><\/p>\n<p>         q<\/p>\n<p>         &#061;<\/p>\n<p>          f<\/p>\n<p>          \u03b8<\/p>\n<p>         (<\/p>\n<p>         Q<\/p>\n<p>         )<\/p>\n<p>        q &#061; f_{\\\\theta}(Q)<\/p>\n<p>     <\/span><span class=\"katex-html\"><span class=\"base\"><span class=\"strut\" style=\"height: 0.625em;vertical-align: -0.1944em\"><\/span><span class=\"mord mathnormal\" style=\"margin-right: 0.0359em\">q<\/span><span class=\"mspace\" style=\"margin-right: 0.2778em\"><\/span><span class=\"mrel\">&#061;<\/span><span class=\"mspace\" style=\"margin-right: 0.2778em\"><\/span><\/span><span class=\"base\"><span class=\"strut\" style=\"height: 1em;vertical-align: -0.25em\"><\/span><span class=\"mord\"><span class=\"mord mathnormal\" style=\"margin-right: 0.1076em\">f<\/span><span class=\"msupsub\"><span class=\"vlist-t vlist-t2\"><span class=\"vlist-r\"><span class=\"vlist\" style=\"height: 0.3361em\"><span class=\"\" style=\"top: -2.55em;margin-left: -0.1076em;margin-right: 0.05em\"><span class=\"pstrut\" style=\"height: 2.7em\"><\/span><span class=\"sizing reset-size6 size3 mtight\"><span class=\"mord mtight\"><span class=\"mord mathnormal mtight\" style=\"margin-right: 0.0278em\">\u03b8<\/span><\/span><\/span><\/span><\/span><span class=\"vlist-s\">\u200b<\/span><\/span><span class=\"vlist-r\"><span class=\"vlist\" style=\"height: 0.15em\"><span class=\"\"><\/span><\/span><\/span><\/span><\/span><\/span><span class=\"mopen\">(<\/span><span class=\"mord mathnormal\">Q<\/span><span class=\"mclose\">)<\/span><\/span><\/span><\/span><\/span>&#xff0c;\u6587\u6863\u5411\u91cf <span class=\"katex--inline\"><span class=\"katex\"><span class=\"katex-mathml\"><\/p>\n<p>         d<\/p>\n<p>         &#061;<\/p>\n<p>          g<\/p>\n<p>          \u03d5<\/p>\n<p>         (<\/p>\n<p>         D<\/p>\n<p>         )<\/p>\n<p>        d &#061; g_{\\\\phi}(D)<\/p>\n<p>     <\/span><span class=\"katex-html\"><span class=\"base\"><span class=\"strut\" style=\"height: 0.6944em\"><\/span><span class=\"mord mathnormal\">d<\/span><span class=\"mspace\" style=\"margin-right: 0.2778em\"><\/span><span class=\"mrel\">&#061;<\/span><span class=\"mspace\" style=\"margin-right: 0.2778em\"><\/span><\/span><span class=\"base\"><span class=\"strut\" style=\"height: 1.0361em;vertical-align: -0.2861em\"><\/span><span class=\"mord\"><span class=\"mord mathnormal\" style=\"margin-right: 0.0359em\">g<\/span><span class=\"msupsub\"><span class=\"vlist-t vlist-t2\"><span class=\"vlist-r\"><span class=\"vlist\" style=\"height: 0.3361em\"><span class=\"\" style=\"top: -2.55em;margin-left: -0.0359em;margin-right: 0.05em\"><span class=\"pstrut\" style=\"height: 2.7em\"><\/span><span class=\"sizing reset-size6 size3 mtight\"><span class=\"mord mtight\"><span class=\"mord mathnormal mtight\">\u03d5<\/span><\/span><\/span><\/span><\/span><span class=\"vlist-s\">\u200b<\/span><\/span><span class=\"vlist-r\"><span class=\"vlist\" style=\"height: 0.2861em\"><span class=\"\"><\/span><\/span><\/span><\/span><\/span><\/span><span class=\"mopen\">(<\/span><span class=\"mord mathnormal\" style=\"margin-right: 0.0278em\">D<\/span><span class=\"mclose\">)<\/span><\/span><\/span><\/span><\/span>&#xff0c;\u76f8\u5173\u6027\u5f97\u5206 <span class=\"katex--inline\"><span class=\"katex\"><span class=\"katex-mathml\"><\/p>\n<p>         s<\/p>\n<p>         (<\/p>\n<p>         q<\/p>\n<p>         ,<\/p>\n<p>         d<\/p>\n<p>         )<\/p>\n<p>         &#061;<\/p>\n<p>          q<\/p>\n<p>          T<\/p>\n<p>         d<\/p>\n<p>         \/<\/p>\n<p>         \u2225<\/p>\n<p>         q<\/p>\n<p>         \u2225<\/p>\n<p>         \u2225<\/p>\n<p>         d<\/p>\n<p>         \u2225<\/p>\n<p>        s(q,d) &#061; q^T d \/ \\\\|q\\\\|\\\\|d\\\\|<\/p>\n<p>     <\/span><span class=\"katex-html\"><span class=\"base\"><span class=\"strut\" style=\"height: 1em;vertical-align: -0.25em\"><\/span><span class=\"mord mathnormal\">s<\/span><span class=\"mopen\">(<\/span><span class=\"mord mathnormal\" style=\"margin-right: 0.0359em\">q<\/span><span class=\"mpunct\">,<\/span><span class=\"mspace\" style=\"margin-right: 0.1667em\"><\/span><span class=\"mord mathnormal\">d<\/span><span class=\"mclose\">)<\/span><span class=\"mspace\" style=\"margin-right: 0.2778em\"><\/span><span class=\"mrel\">&#061;<\/span><span class=\"mspace\" style=\"margin-right: 0.2778em\"><\/span><\/span><span class=\"base\"><span class=\"strut\" style=\"height: 1.0913em;vertical-align: -0.25em\"><\/span><span class=\"mord\"><span class=\"mord mathnormal\" style=\"margin-right: 0.0359em\">q<\/span><span class=\"msupsub\"><span class=\"vlist-t\"><span class=\"vlist-r\"><span class=\"vlist\" style=\"height: 0.8413em\"><span class=\"\" style=\"top: -3.063em;margin-right: 0.05em\"><span class=\"pstrut\" style=\"height: 2.7em\"><\/span><span class=\"sizing reset-size6 size3 mtight\"><span class=\"mord mathnormal mtight\" style=\"margin-right: 0.1389em\">T<\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><span class=\"mord mathnormal\">d<\/span><span class=\"mord\">\/\u2225<\/span><span class=\"mord mathnormal\" style=\"margin-right: 0.0359em\">q<\/span><span class=\"mord\">\u2225\u2225<\/span><span class=\"mord mathnormal\">d<\/span><span class=\"mord\">\u2225<\/span><\/span><\/span><\/span><\/span><\/p>\n<p>\u672c\u6587\u7531\u300c\u5927\u5343AI\u52a9\u624b\u300d\u539f\u521b\u53d1\u5e03&#xff0c;\u4e13\u6ce8\u7528\u771f\u8bdd\u8bb2AI&#xff0c;\u56de\u5f52\u6280\u672f\u672c\u8d28\u3002\u62d2\u7edd\u795e\u8bdd\u6216\u5996\u9b54\u5316\u3002\u641c\u7d22\u300c\u5927\u5343AI\u52a9\u624b\u300d\u5173\u6ce8\u6211&#xff0c;\u4e00\u8d77\u6495\u6389\u8fc7\u5ea6\u5305\u88c5&#xff0c;\u5b66\u4e60\u771f\u5b9e\u7684AI\u6280\u672f&#xff01;<\/p>\n<p>\u5f80\u671f\u6587\u7ae0\u63a8\u8350:<\/p>\n<ul>\n<li>20.CodePlan&#xff1a;\u57fa\u4e8e\u4ee3\u7801\u5f62\u5f0f\u89c4\u5212\u7684\u5927\u6a21\u578b\u7ed3\u6784\u5316\u63a8\u7406\u65b0\u8303\u5f0f<\/li>\n<li>19.CodeGen&#xff1a;\u9762\u5411\u591a\u8f6e\u7a0b\u5e8f\u5408\u6210\u7684\u5f00\u6e90\u4ee3\u7801\u5927\u8bed\u8a00\u6a21\u578b<\/li>\n<li>18.\u675f\u641c\u7d22&#xff08;Beam Search&#xff09;&#xff1a;\u539f\u7406\u3001\u6f14\u8fdb\u4e0e\u6311\u6218<\/li>\n<li>17.RAGFoundry&#xff1a;\u9762\u5411\u68c0\u7d22\u589e\u5f3a\u751f\u6210\u7684\u6a21\u5757\u5316\u589e\u5f3a\u6846\u67b6<\/li>\n<li>16.TyDi QA&#xff1a;\u9762\u5411\u8bed\u8a00\u7c7b\u578b\u591a\u6837\u6027\u7684\u4fe1\u606f\u68c0\u7d22\u95ee\u7b54\u57fa\u51c6<\/li>\n<li>15.BBH\u8be6\u89e3:\u9762\u5411\u5927\u6a21\u578b\u7684\u9ad8\u9636\u63a8\u7406\u8bc4\u4f30\u57fa\u51c6\u4e0e\u6570\u636e\u96c6\u5206\u6790<\/li>\n<li>14.RepoCoder&#xff1a;\u4ed3\u5e93\u7ea7\u4ee3\u7801\u8865\u5168\u7684\u8fed\u4ee3\u68c0\u7d22\u751f\u6210\u6846\u67b6\u89e3\u6790\u4e0e\u5e94\u7528\u524d\u6cbf<\/li>\n<li>13.RAGAS&#xff1a;\u68c0\u7d22\u589e\u5f3a\u751f\u6210\u7cfb\u7edf\u7684\u65e0\u53c2\u8003\u8bc4\u4f30\u6846\u67b6\u4e0e\u6280\u672f\u89e3\u6790<\/li>\n<li>12.Self-RAG&#xff1a;\u57fa\u4e8e\u81ea\u6211\u53cd\u601d\u7684\u68c0\u7d22\u589e\u5f3a\u751f\u6210\u6846\u67b6\u6280\u672f\u89e3\u6790<\/li>\n<li>11.DocBench&#xff1a;\u9762\u5411\u5927\u6a21\u578b\u6587\u6863\u9605\u8bfb\u7cfb\u7edf\u7684\u8bc4\u4f30\u57fa\u51c6\u4e0e\u6570\u636e\u96c6\u5206\u6790<\/li>\n<li>10.\u54f2\u5b66\u4e2d\u7684\u4e3b\u4f53\u6027&#xff1a;\u5386\u53f2\u6f14\u8fdb\u3001\u7406\u8bba\u8303\u5f0f\u4e0e\u5f53\u4ee3\u91cd\u6784<\/li>\n<li>9.FLAN-T5&#xff1a;\u5927\u89c4\u6a21\u6307\u4ee4\u5fae\u8c03\u7684\u7edf\u4e00\u8bed\u8a00\u6a21\u578b\u6846\u67b6<\/li>\n<li>8.Do-Calculus&#xff1a;\u56e0\u679c\u63a8\u65ad\u7684\u6f14\u7b97\u57fa\u7840\u4e0e\u8de8\u9886\u57df\u5e94\u7528<\/li>\n<li>7.\u540c\u8d28\u65e0\u5411\u52a0\u6743\u56fe&#xff1a;\u7406\u8bba\u57fa\u7840\u3001\u7b97\u6cd5\u6f14\u8fdb\u4e0e\u5e94\u7528\u524d\u6cbf<\/li>\n<li>6.\u5927\u6a21\u578b\u667a\u80fd\u4f53(Agent)\u6280\u672f\u5168\u666f&#xff1a;\u67b6\u6784\u6f14\u8fdb\u3001\u534f\u4f5c\u8303\u5f0f\u4e0e\u5e94\u7528\u524d\u6cbf<\/li>\n<li>5.GraphRAG&#xff1a;\u57fa\u4e8e\u77e5\u8bc6\u56fe\u8c31\u7684\u68c0\u7d22\u589e\u5f3a\u751f\u6210\u6280\u672f\u89e3\u6790<\/li>\n<li>4.\u673a\u5668\u5b66\u4e60\u6d88\u878d\u5b9e\u9a8c&#xff1a;\u65b9\u6cd5\u8bba\u6f14\u8fdb\u3001\u8de8\u9886\u57df\u5e94\u7528\u4e0e\u524d\u6cbf\u8d8b\u52bf<\/li>\n<li>3.Agentic RAG&#xff1a;\u81ea\u4e3b\u68c0\u7d22\u589e\u5f3a\u751f\u6210\u7684\u8303\u5f0f\u6f14\u8fdb\u4e0e\u6280\u672f\u7a81\u7834<\/li>\n<li>2.FEVER\u6570\u636e\u96c6&#xff1a;\u4e8b\u5b9e\u9a8c\u8bc1\u4efb\u52a1\u7684\u5927\u89c4\u6a21\u57fa\u51c6\u4e0e\u8bc4\u4f30\u6846\u67b6<\/li>\n<li>1.\u566a\u58f0\u5bf9\u6bd4\u4f30\u8ba1&#xff08;NCE&#xff09;&#xff1a;\u539f\u7406\u3001\u6f14\u8fdb\u4e0e\u8de8\u9886\u57df\u5e94\u7528<\/li>\n<\/ul>\n<h5>2. \u6280\u672f\u6f14\u8fdb\u91cc\u7a0b\u7891<\/h5>\n<h6>2.1 \u5960\u57fa\u5de5\u4f5c&#xff1a;DPR&#xff08;2019&#xff09;<\/h6>\n<ul>\n<li>\u6838\u5fc3\u521b\u65b0&#xff1a;\u53cc\u5854\u67b6\u6784&#xff08;Dual-Encoder&#xff09;\n<ul>\n<li>\u67e5\u8be2\u7f16\u7801\u5668 <span class=\"katex--inline\"><span class=\"katex\"><span class=\"katex-mathml\">\n<p>            f<\/p>\n<p>            \u03b8<\/p>\n<p>          f_{\\\\theta}<\/p>\n<p>       <\/span><span class=\"katex-html\"><span class=\"base\"><span class=\"strut\" style=\"height: 0.8889em;vertical-align: -0.1944em\"><\/span><span class=\"mord\"><span class=\"mord mathnormal\" style=\"margin-right: 0.1076em\">f<\/span><span class=\"msupsub\"><span class=\"vlist-t vlist-t2\"><span class=\"vlist-r\"><span class=\"vlist\" style=\"height: 0.3361em\"><span class=\"\" style=\"top: -2.55em;margin-left: -0.1076em;margin-right: 0.05em\"><span class=\"pstrut\" style=\"height: 2.7em\"><\/span><span class=\"sizing reset-size6 size3 mtight\"><span class=\"mord mtight\"><span class=\"mord mathnormal mtight\" style=\"margin-right: 0.0278em\">\u03b8<\/span><\/span><\/span><\/span><\/span><span class=\"vlist-s\">\u200b<\/span><\/span><span class=\"vlist-r\"><span class=\"vlist\" style=\"height: 0.15em\"><span class=\"\"><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span> \u4e0e \u6587\u6863\u7f16\u7801\u5668 <span class=\"katex--inline\"><span class=\"katex\"><span class=\"katex-mathml\"><\/p>\n<p>            g<\/p>\n<p>            \u03d5<\/p>\n<p>          g_{\\\\phi}<\/p>\n<p>       <\/span><span class=\"katex-html\"><span class=\"base\"><span class=\"strut\" style=\"height: 0.7167em;vertical-align: -0.2861em\"><\/span><span class=\"mord\"><span class=\"mord mathnormal\" style=\"margin-right: 0.0359em\">g<\/span><span class=\"msupsub\"><span class=\"vlist-t vlist-t2\"><span class=\"vlist-r\"><span class=\"vlist\" style=\"height: 0.3361em\"><span class=\"\" style=\"top: -2.55em;margin-left: -0.0359em;margin-right: 0.05em\"><span class=\"pstrut\" style=\"height: 2.7em\"><\/span><span class=\"sizing reset-size6 size3 mtight\"><span class=\"mord mtight\"><span class=\"mord mathnormal mtight\">\u03d5<\/span><\/span><\/span><\/span><\/span><span class=\"vlist-s\">\u200b<\/span><\/span><span class=\"vlist-r\"><span class=\"vlist\" style=\"height: 0.2861em\"><span class=\"\"><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span> \u72ec\u7acb\u53c2\u6570\u5316&#xff1b;<\/li>\n<li>\u8bad\u7ec3\u76ee\u6807&#xff1a;\u6b63\u6837\u672c <span class=\"katex--inline\"><span class=\"katex\"><span class=\"katex-mathml\">\n<p>           (<\/p>\n<p>           q<\/p>\n<p>           ,<\/p>\n<p>            d<\/p>\n<p>            &#043;<\/p>\n<p>           )<\/p>\n<p>          (q,d^&#043;)<\/p>\n<p>       <\/span><span class=\"katex-html\"><span class=\"base\"><span class=\"strut\" style=\"height: 1.0213em;vertical-align: -0.25em\"><\/span><span class=\"mopen\">(<\/span><span class=\"mord mathnormal\" style=\"margin-right: 0.0359em\">q<\/span><span class=\"mpunct\">,<\/span><span class=\"mspace\" style=\"margin-right: 0.1667em\"><\/span><span class=\"mord\"><span class=\"mord mathnormal\">d<\/span><span class=\"msupsub\"><span class=\"vlist-t\"><span class=\"vlist-r\"><span class=\"vlist\" style=\"height: 0.7713em\"><span class=\"\" style=\"top: -3.063em;margin-right: 0.05em\"><span class=\"pstrut\" style=\"height: 2.7em\"><\/span><span class=\"sizing reset-size6 size3 mtight\"><span class=\"mbin mtight\">&#043;<\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><span class=\"mclose\">)<\/span><\/span><\/span><\/span><\/span> \u5f97\u5206 &gt; \u8d1f\u6837\u672c <span class=\"katex--inline\"><span class=\"katex\"><span class=\"katex-mathml\"><\/p>\n<p>           (<\/p>\n<p>           q<\/p>\n<p>           ,<\/p>\n<p>            d<\/p>\n<p>            \u2212<\/p>\n<p>           )<\/p>\n<p>          (q,d^-)<\/p>\n<p>       <\/span><span class=\"katex-html\"><span class=\"base\"><span class=\"strut\" style=\"height: 1.0213em;vertical-align: -0.25em\"><\/span><span class=\"mopen\">(<\/span><span class=\"mord mathnormal\" style=\"margin-right: 0.0359em\">q<\/span><span class=\"mpunct\">,<\/span><span class=\"mspace\" style=\"margin-right: 0.1667em\"><\/span><span class=\"mord\"><span class=\"mord mathnormal\">d<\/span><span class=\"msupsub\"><span class=\"vlist-t\"><span class=\"vlist-r\"><span class=\"vlist\" style=\"height: 0.7713em\"><span class=\"\" style=\"top: -3.063em;margin-right: 0.05em\"><span class=\"pstrut\" style=\"height: 2.7em\"><\/span><span class=\"sizing reset-size6 size3 mtight\"><span class=\"mbin mtight\">\u2212<\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><span class=\"mclose\">)<\/span><\/span><\/span><\/span><\/span> \u5f97\u5206 &#043; \u95f4\u9694 <span class=\"katex--inline\"><span class=\"katex\"><span class=\"katex-mathml\"><\/p>\n<p>           m<\/p>\n<p>          m<\/p>\n<p>       <\/span><span class=\"katex-html\"><span class=\"base\"><span class=\"strut\" style=\"height: 0.4306em\"><\/span><span class=\"mord mathnormal\">m<\/span><\/span><\/span><\/span><\/span>&#xff08;\u95f4\u9694\u635f\u5931\u51fd\u6570&#xff09;\u3002<\/li>\n<\/ul>\n<\/li>\n<li>\u8bad\u7ec3\u6570\u636e&#xff1a;\u57fa\u4e8e\u95ee\u7b54\u4efb\u52a1&#xff08;\u5982Natural Questions&#xff09;\u6784\u5efa\u4e09\u5143\u7ec4 <span class=\"katex--inline\"><span class=\"katex\"><span class=\"katex-mathml\">\n<p>         \u27e8<\/p>\n<p>         q<\/p>\n<p>         ,<\/p>\n<p>          d<\/p>\n<p>          &#043;<\/p>\n<p>         ,<\/p>\n<p>          d<\/p>\n<p>          \u2212<\/p>\n<p>         \u27e9<\/p>\n<p>        \\\\langle q, d^&#043;, d^- \\\\rangle<\/p>\n<p>     <\/span><span class=\"katex-html\"><span class=\"base\"><span class=\"strut\" style=\"height: 1.0213em;vertical-align: -0.25em\"><\/span><span class=\"mopen\">\u27e8<\/span><span class=\"mord mathnormal\" style=\"margin-right: 0.0359em\">q<\/span><span class=\"mpunct\">,<\/span><span class=\"mspace\" style=\"margin-right: 0.1667em\"><\/span><span class=\"mord\"><span class=\"mord mathnormal\">d<\/span><span class=\"msupsub\"><span class=\"vlist-t\"><span class=\"vlist-r\"><span class=\"vlist\" style=\"height: 0.7713em\"><span class=\"\" style=\"top: -3.063em;margin-right: 0.05em\"><span class=\"pstrut\" style=\"height: 2.7em\"><\/span><span class=\"sizing reset-size6 size3 mtight\"><span class=\"mbin mtight\">&#043;<\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><span class=\"mpunct\">,<\/span><span class=\"mspace\" style=\"margin-right: 0.1667em\"><\/span><span class=\"mord\"><span class=\"mord mathnormal\">d<\/span><span class=\"msupsub\"><span class=\"vlist-t\"><span class=\"vlist-r\"><span class=\"vlist\" style=\"height: 0.7713em\"><span class=\"\" style=\"top: -3.063em;margin-right: 0.05em\"><span class=\"pstrut\" style=\"height: 2.7em\"><\/span><span class=\"sizing reset-size6 size3 mtight\"><span class=\"mbin mtight\">\u2212<\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><span class=\"mclose\">\u27e9<\/span><\/span><\/span><\/span><\/span>\u3002<\/li>\n<li>\u6027\u80fd\u7a81\u7834&#xff1a;\u5728NQ\u6570\u636e\u96c6\u4e0aTop-20\u51c6\u786e\u738778.9%&#xff0c;\u663e\u8457\u8d85\u8d8aBM25&#xff08;59.1%&#xff09;\u3002<\/li>\n<\/ul>\n<h6>2.2 \u8bad\u7ec3\u7b56\u7565\u4f18\u5316&#xff1a;ANCE&#xff08;2020&#xff09;<\/h6>\n<ul>\n<li>\u95ee\u9898&#xff1a;\u9759\u6001\u8d1f\u6837\u672c&#xff08;\u968f\u673a\u6216BM25\u91c7\u6837&#xff09;\u65e0\u6cd5\u63d0\u4f9b\u8db3\u591f\u6311\u6218\u6027&#xff1b;<\/li>\n<li>\u89e3\u51b3\u65b9\u6848&#xff1a;\u5f02\u6b65\u6e10\u8fdb\u5f0f\u8d1f\u91c7\u6837&#xff08;Asynchronous Negative Cache&#xff09;&#xff1a;\n<ul>\n<li>\u8bad\u7ec3\u4e2d\u52a8\u6001\u5237\u65b0\u8d1f\u6837\u672c\u6c60&#xff0c;\u9009\u62e9\u5f53\u524d\u6a21\u578b\u6700\u96be\u533a\u5206\u7684\u8d1f\u6587\u6863&#xff08;\u9ad8\u76f8\u4f3c\u5ea6\u4f46\u9519\u8bef&#xff09;&#xff1b;<\/li>\n<\/ul>\n<\/li>\n<li>\u6548\u679c&#xff1a;MS MARCO \u6570\u636e\u96c6\u4e0a MRR&#064;10 39.2% \u2192 42.3%\u3002<\/li>\n<\/ul>\n<h6>2.3 \u4ea4\u4e92\u5f0f\u7a20\u5bc6\u68c0\u7d22&#xff1a;ColBERT&#xff08;2020&#xff09;<\/h6>\n<ul>\n<li>\u67b6\u6784\u521b\u65b0&#xff1a;\u8fdf\u4ea4\u4e92&#xff08;Late Interaction&#xff09;\n<ul>\n<li>\u6587\u6863\/\u67e5\u8be2\u7f16\u7801\u4e3atoken\u7ea7\u5411\u91cf&#xff0c;\u76f8\u4f3c\u5ea6\u8ba1\u7b97 <span class=\"katex--inline\"><span class=\"katex\"><span class=\"katex-mathml\">\n<p>           s<\/p>\n<p>           (<\/p>\n<p>           q<\/p>\n<p>           ,<\/p>\n<p>           d<\/p>\n<p>           )<\/p>\n<p>           &#061;<\/p>\n<p>            \u2211<\/p>\n<p>            i<\/p>\n<p>             max<\/p>\n<p>             \u2061<\/p>\n<p>            j<\/p>\n<p>            q<\/p>\n<p>            i<\/p>\n<p>            T<\/p>\n<p>            d<\/p>\n<p>            j<\/p>\n<p>          s(q,d) &#061; \\\\sum_{i} \\\\max_{j} q_i^T d_j<\/p>\n<p>       <\/span><span class=\"katex-html\"><span class=\"base\"><span class=\"strut\" style=\"height: 1em;vertical-align: -0.25em\"><\/span><span class=\"mord mathnormal\">s<\/span><span class=\"mopen\">(<\/span><span class=\"mord mathnormal\" style=\"margin-right: 0.0359em\">q<\/span><span class=\"mpunct\">,<\/span><span class=\"mspace\" style=\"margin-right: 0.1667em\"><\/span><span class=\"mord mathnormal\">d<\/span><span class=\"mclose\">)<\/span><span class=\"mspace\" style=\"margin-right: 0.2778em\"><\/span><span class=\"mrel\">&#061;<\/span><span class=\"mspace\" style=\"margin-right: 0.2778em\"><\/span><\/span><span class=\"base\"><span class=\"strut\" style=\"height: 1.141em;vertical-align: -0.2997em\"><\/span><span class=\"mop\"><span class=\"mop op-symbol small-op\" style=\"position: relative;top: 0em\">\u2211<\/span><span class=\"msupsub\"><span class=\"vlist-t vlist-t2\"><span class=\"vlist-r\"><span class=\"vlist\" style=\"height: 0.162em\"><span class=\"\" style=\"top: -2.4003em;margin-left: 0em;margin-right: 0.05em\"><span class=\"pstrut\" style=\"height: 2.7em\"><\/span><span class=\"sizing reset-size6 size3 mtight\"><span class=\"mord mtight\"><span class=\"mord mathnormal mtight\">i<\/span><\/span><\/span><\/span><\/span><span class=\"vlist-s\">\u200b<\/span><\/span><span class=\"vlist-r\"><span class=\"vlist\" style=\"height: 0.2997em\"><span class=\"\"><\/span><\/span><\/span><\/span><\/span><\/span><span class=\"mspace\" style=\"margin-right: 0.1667em\"><\/span><span class=\"mop\"><span class=\"mop\">max<\/span><span class=\"msupsub\"><span class=\"vlist-t vlist-t2\"><span class=\"vlist-r\"><span class=\"vlist\" style=\"height: 0.3117em\"><span class=\"\" style=\"top: -2.55em;margin-right: 0.05em\"><span class=\"pstrut\" style=\"height: 2.7em\"><\/span><span class=\"sizing reset-size6 size3 mtight\"><span class=\"mord mtight\"><span class=\"mord mathnormal mtight\" style=\"margin-right: 0.0572em\">j<\/span><\/span><\/span><\/span><\/span><span class=\"vlist-s\">\u200b<\/span><\/span><span class=\"vlist-r\"><span class=\"vlist\" style=\"height: 0.2861em\"><span class=\"\"><\/span><\/span><\/span><\/span><\/span><\/span><span class=\"mspace\" style=\"margin-right: 0.1667em\"><\/span><span class=\"mord\"><span class=\"mord mathnormal\" style=\"margin-right: 0.0359em\">q<\/span><span class=\"msupsub\"><span class=\"vlist-t vlist-t2\"><span class=\"vlist-r\"><span class=\"vlist\" style=\"height: 0.8413em\"><span class=\"\" style=\"top: -2.4413em;margin-left: -0.0359em;margin-right: 0.05em\"><span class=\"pstrut\" style=\"height: 2.7em\"><\/span><span class=\"sizing reset-size6 size3 mtight\"><span class=\"mord mathnormal mtight\">i<\/span><\/span><\/span><span class=\"\" style=\"top: -3.063em;margin-right: 0.05em\"><span class=\"pstrut\" style=\"height: 2.7em\"><\/span><span class=\"sizing reset-size6 size3 mtight\"><span class=\"mord mathnormal mtight\" style=\"margin-right: 0.1389em\">T<\/span><\/span><\/span><\/span><span class=\"vlist-s\">\u200b<\/span><\/span><span class=\"vlist-r\"><span class=\"vlist\" style=\"height: 0.2587em\"><span class=\"\"><\/span><\/span><\/span><\/span><\/span><\/span><span class=\"mord\"><span class=\"mord mathnormal\">d<\/span><span class=\"msupsub\"><span class=\"vlist-t vlist-t2\"><span class=\"vlist-r\"><span class=\"vlist\" style=\"height: 0.3117em\"><span class=\"\" style=\"top: -2.55em;margin-left: 0em;margin-right: 0.05em\"><span class=\"pstrut\" style=\"height: 2.7em\"><\/span><span class=\"sizing reset-size6 size3 mtight\"><span class=\"mord mathnormal mtight\" style=\"margin-right: 0.0572em\">j<\/span><\/span><\/span><\/span><span class=\"vlist-s\">\u200b<\/span><\/span><span class=\"vlist-r\"><span class=\"vlist\" style=\"height: 0.2861em\"><span class=\"\"><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span>&#xff1b;<\/li>\n<\/ul>\n<\/li>\n<li>\u4f18\u52bf&#xff1a;\n<ul>\n<li>\u4fdd\u7559\u7ec6\u7c92\u5ea6\u5339\u914d\u4fe1\u53f7&#xff08;\u5982\u5c40\u90e8\u672f\u8bed\u5bf9\u9f50&#xff09;&#xff1b;<\/li>\n<li>\u652f\u6301\u9884\u8ba1\u7b97\u6587\u6863\u5411\u91cf&#xff0c;\u4ec5\u5b9e\u65f6\u7f16\u7801\u67e5\u8be2&#xff1b;<\/li>\n<\/ul>\n<\/li>\n<li>\u6027\u80fd&#xff1a;MS MARCO \u4e0a MRR&#064;10 40.5%&#xff08;\u5e73\u8861\u6548\u7387\u4e0e\u7cbe\u5ea6&#xff09;\u3002<\/li>\n<\/ul>\n<h6>2.4 \u5927\u89c4\u6a21\u5411\u91cf\u538b\u7f29&#xff1a;BGE&#xff08;2023&#xff09;<\/h6>\n<ul>\n<li>\u6838\u5fc3\u8d21\u732e&#xff1a;\u6307\u4ee4\u611f\u77e5\u5d4c\u5165&#xff08;Instruction-aware Embedding&#xff09;\n<ul>\n<li>\u5728\u67e5\u8be2\u7aef\u6ce8\u5165\u4efb\u52a1\u6307\u4ee4&#xff08;\u5982\u201c\u4e3a\u4ee5\u4e0b\u95ee\u9898\u67e5\u627e\u76f8\u5173\u6587\u6863&#xff1a;\u201d&#xff09;&#xff0c;\u63d0\u5347\u591a\u4efb\u52a1\u6cdb\u5316\u6027&#xff1b;<\/li>\n<\/ul>\n<\/li>\n<li>\u5f00\u6e90\u6a21\u578b&#xff1a;BGE-M3\u652f\u6301\u7a20\u5bc6\u68c0\u7d22\u3001\u7a00\u758f\u68c0\u7d22\u4e0e\u591a\u5411\u91cf\u4ea4\u4e92\u4e09\u6a21\u6001\u878d\u5408&#xff1b;<\/li>\n<li>SOTA\u6027\u80fd&#xff1a;MTEB\u57fa\u51c6\u4e2d\u5e73\u5747\u5f97\u520664.8&#xff0c;\u8d85\u8d8aOpenAI text-embedding-3-large&#xff08;63.5&#xff09;\u3002<\/li>\n<\/ul>\n<hr \/>\n<h5>3. \u5173\u952e\u6280\u672f\u7ec4\u4ef6<\/h5>\n<h6>3.1 \u6a21\u578b\u67b6\u6784\u5bf9\u6bd4<\/h6>\n<table>\n<tr>\u67b6\u6784\u4ee3\u8868\u6a21\u578b\u8ba1\u7b97\u590d\u6742\u5ea6\u9002\u7528\u573a\u666f<\/tr>\n<tbody>\n<tr>\n<td>\u53cc\u5854&#xff08;Dual-Tower&#xff09;<\/td>\n<td>DPR\u3001ANCE<\/td>\n<td><span class=\"katex--inline\"><span class=\"katex\"><span class=\"katex-mathml\"><\/p>\n<p>           O<\/p>\n<p>           (<\/p>\n<p>           n<\/p>\n<p>           &#043;<\/p>\n<p>           m<\/p>\n<p>           )<\/p>\n<p>          O(n&#043;m)<\/p>\n<p>       <\/span><span class=\"katex-html\"><span class=\"base\"><span class=\"strut\" style=\"height: 1em;vertical-align: -0.25em\"><\/span><span class=\"mord mathnormal\" style=\"margin-right: 0.0278em\">O<\/span><span class=\"mopen\">(<\/span><span class=\"mord mathnormal\">n<\/span><span class=\"mspace\" style=\"margin-right: 0.2222em\"><\/span><span class=\"mbin\">&#043;<\/span><span class=\"mspace\" style=\"margin-right: 0.2222em\"><\/span><\/span><span class=\"base\"><span class=\"strut\" style=\"height: 1em;vertical-align: -0.25em\"><\/span><span class=\"mord mathnormal\">m<\/span><span class=\"mclose\">)<\/span><\/span><\/span><\/span><\/span><\/td>\n<td>\u5927\u89c4\u6a21\u6587\u6863\u5e93<\/td>\n<\/tr>\n<tr>\n<td>\u4ea4\u4e92\u5f0f&#xff08;Interaction&#xff09;<\/td>\n<td>ColBERT<\/td>\n<td><span class=\"katex--inline\"><span class=\"katex\"><span class=\"katex-mathml\"><\/p>\n<p>           O<\/p>\n<p>           (<\/p>\n<p>           n<\/p>\n<p>           \u00d7<\/p>\n<p>           m<\/p>\n<p>           )<\/p>\n<p>          O(n \\\\times m)<\/p>\n<p>       <\/span><span class=\"katex-html\"><span class=\"base\"><span class=\"strut\" style=\"height: 1em;vertical-align: -0.25em\"><\/span><span class=\"mord mathnormal\" style=\"margin-right: 0.0278em\">O<\/span><span class=\"mopen\">(<\/span><span class=\"mord mathnormal\">n<\/span><span class=\"mspace\" style=\"margin-right: 0.2222em\"><\/span><span class=\"mbin\">\u00d7<\/span><span class=\"mspace\" style=\"margin-right: 0.2222em\"><\/span><\/span><span class=\"base\"><span class=\"strut\" style=\"height: 1em;vertical-align: -0.25em\"><\/span><span class=\"mord mathnormal\">m<\/span><span class=\"mclose\">)<\/span><\/span><\/span><\/span><\/span><\/td>\n<td>\u9ad8\u7cbe\u5ea6\u77ed\u6587\u672c\u5339\u914d<\/td>\n<\/tr>\n<tr>\n<td>\u591a\u6a21\u6001\u878d\u5408<\/td>\n<td>BGE-M3<\/td>\n<td><span class=\"katex--inline\"><span class=\"katex\"><span class=\"katex-mathml\"><\/p>\n<p>           O<\/p>\n<p>           (<\/p>\n<p>           n<\/p>\n<p>           &#043;<\/p>\n<p>           m<\/p>\n<p>           &#043;<\/p>\n<p>           k<\/p>\n<p>           )<\/p>\n<p>          O(n&#043;m&#043;k)<\/p>\n<p>       <\/span><span class=\"katex-html\"><span class=\"base\"><span class=\"strut\" style=\"height: 1em;vertical-align: -0.25em\"><\/span><span class=\"mord mathnormal\" style=\"margin-right: 0.0278em\">O<\/span><span class=\"mopen\">(<\/span><span class=\"mord mathnormal\">n<\/span><span class=\"mspace\" style=\"margin-right: 0.2222em\"><\/span><span class=\"mbin\">&#043;<\/span><span class=\"mspace\" style=\"margin-right: 0.2222em\"><\/span><\/span><span class=\"base\"><span class=\"strut\" style=\"height: 0.6667em;vertical-align: -0.0833em\"><\/span><span class=\"mord mathnormal\">m<\/span><span class=\"mspace\" style=\"margin-right: 0.2222em\"><\/span><span class=\"mbin\">&#043;<\/span><span class=\"mspace\" style=\"margin-right: 0.2222em\"><\/span><\/span><span class=\"base\"><span class=\"strut\" style=\"height: 1em;vertical-align: -0.25em\"><\/span><span class=\"mord mathnormal\" style=\"margin-right: 0.0315em\">k<\/span><span class=\"mclose\">)<\/span><\/span><\/span><\/span><\/span><\/td>\n<td>\u591a\u4efb\u52a1\u6df7\u5408\u68c0\u7d22<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h6>3.2 \u8d1f\u6837\u672c\u91c7\u6837\u7b56\u7565<\/h6>\n<table>\n<tr>\u7b56\u7565\u539f\u7406\u4f18\u52bf<\/tr>\n<tbody>\n<tr>\n<td>\u968f\u673a\u91c7\u6837<\/td>\n<td>\u968f\u673a\u9009\u62e9\u975e\u76f8\u5173\u6587\u6863<\/td>\n<td>\u5b9e\u73b0\u7b80\u5355<\/td>\n<\/tr>\n<tr>\n<td>BM25\u786c\u8d1f\u4f8b<\/td>\n<td>\u9009\u62e9BM25\u9ad8\u5206\u4f46\u975e\u7b54\u6848\u7684\u6587\u6863<\/td>\n<td>\u63d0\u5347\u533a\u5206\u56f0\u96be\u6837\u672c\u80fd\u529b<\/td>\n<\/tr>\n<tr>\n<td>\u52a8\u6001\u8d1f\u91c7\u6837&#xff08;ANCE&#xff09;<\/td>\n<td>\u8bad\u7ec3\u4e2d\u5b9e\u65f6\u66f4\u65b0\u96be\u8d1f\u4f8b<\/td>\n<td>\u6700\u5927\u5316\u8bad\u7ec3\u4fe1\u53f7\u5f3a\u5ea6<\/td>\n<\/tr>\n<tr>\n<td>\u5bf9\u6297\u8d1f\u91c7\u6837<\/td>\n<td>\u751f\u6210\u5668\u7f51\u7edc\u5408\u6210\u5bf9\u6297\u6837\u672c<\/td>\n<td>\u589e\u5f3a\u6a21\u578b\u9c81\u68d2\u6027<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<hr \/>\n<h5>4. \u6027\u80fd\u8bc4\u4f30\u4e0e\u6743\u5a01\u57fa\u51c6<\/h5>\n<h6>4.1 \u4e3b\u6d41\u8bc4\u6d4b\u96c6\u8868\u73b0<\/h6>\n<table>\n<tr>\u6a21\u578bMS MARCO (MRR&#064;10)NQ (Top-20 Acc)MTEB\u5e73\u5747\u5206<\/tr>\n<tbody>\n<tr>\n<td>BM25<\/td>\n<td>26.8%<\/td>\n<td>59.1%<\/td>\n<td>&#8211;<\/td>\n<\/tr>\n<tr>\n<td>DPR<\/td>\n<td>33.3%<\/td>\n<td>78.9%<\/td>\n<td>&#8211;<\/td>\n<\/tr>\n<tr>\n<td>ANCE<\/td>\n<td>42.3%<\/td>\n<td>82.1%<\/td>\n<td>&#8211;<\/td>\n<\/tr>\n<tr>\n<td>ColBERT<\/td>\n<td>40.5%<\/td>\n<td>81.7%<\/td>\n<td>&#8211;<\/td>\n<\/tr>\n<tr>\n<td>BGE-M3<\/td>\n<td>46.1%<\/td>\n<td>85.3%<\/td>\n<td>64.8<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h6>4.2 \u6548\u7387\u5bf9\u6bd4&#xff08;MS MARCO 100\u4e07\u6587\u6863&#xff09;<\/h6>\n<table>\n<tr>\u6a21\u578b\u7d22\u5f15\u4f53\u79ef\u67e5\u8be2\u5ef6\u8fdf&#xff08;P99&#xff09;\u53ec\u56de\u7387&#064;100<\/tr>\n<tbody>\n<tr>\n<td>BM25<\/td>\n<td>2.1 GB<\/td>\n<td>45 ms<\/td>\n<td>82.3%<\/td>\n<\/tr>\n<tr>\n<td>DPR<\/td>\n<td>2.9 GB<\/td>\n<td>38 ms<\/td>\n<td>85.7%<\/td>\n<\/tr>\n<tr>\n<td>ColBERT<\/td>\n<td>48 GB<\/td>\n<td>120 ms<\/td>\n<td>87.2%<\/td>\n<\/tr>\n<tr>\n<td>BGE-M3<\/td>\n<td>3.5 GB<\/td>\n<td>42 ms<\/td>\n<td>89.6%<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<hr \/>\n<h5>5. \u5e94\u7528\u573a\u666f\u4e0e\u5f00\u6e90\u5de5\u5177<\/h5>\n<h6>5.1 \u5178\u578b\u5e94\u7528<\/h6>\n<ul>\n<li>\u641c\u7d22\u5f15\u64ce&#xff1a;Bing\u3001Google \u4f7f\u7528\u7a20\u5bc6\u68c0\u7d22\u589e\u5f3a\u8bed\u4e49\u53ec\u56de&#xff1b;<\/li>\n<li>RAG\u7cfb\u7edf&#xff1a;\u4e3aLLMs\u63d0\u4f9b\u7cbe\u51c6\u77e5\u8bc6\u68c0\u7d22&#xff08;\u5982ChatGPT\u7684\u201c\u7528\u5fc5\u5e94\u641c\u7d22\u201d\u529f\u80fd&#xff09;&#xff1b;<\/li>\n<li>\u63a8\u8350\u7cfb\u7edf&#xff1a;\u7528\u6237\u5386\u53f2\u884c\u4e3a\u5411\u91cf\u5316\u5339\u914d\u5019\u9009\u5185\u5bb9\u3002<\/li>\n<\/ul>\n<h6>5.2 \u5feb\u901f\u5b9e\u8df5\u793a\u4f8b<\/h6>\n<p><span class=\"token comment\"># \u4f7f\u7528Sentence Transformers\u52a0\u8f7dBGE\u6a21\u578b<\/span><br \/>\n<span class=\"token keyword\">from<\/span> sentence_transformers <span class=\"token keyword\">import<\/span> SentenceTransformer<\/p>\n<p>model <span class=\"token operator\">&#061;<\/span> SentenceTransformer<span class=\"token punctuation\">(<\/span><span class=\"token string\">&#039;BAAI\/bge-m3&#039;<\/span><span class=\"token punctuation\">)<\/span><br \/>\nquery <span class=\"token operator\">&#061;<\/span> <span class=\"token string\">&#034;\u5982\u4f55\u7f13\u89e3\u6c14\u5019\u53d8\u5316&#xff1f;&#034;<\/span><br \/>\ndocs <span class=\"token operator\">&#061;<\/span> <span class=\"token punctuation\">[<\/span><span class=\"token string\">&#034;\u690d\u6811\u9020\u6797\u53ef\u589e\u52a0\u78b3\u6c47&#034;<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token string\">&#034;\u63a8\u5e7f\u7535\u52a8\u6c7d\u8f66\u51cf\u5c11\u5c3e\u6c14&#034;<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token string\">&#034;\u98df\u8c31\u5927\u5168.pdf&#034;<\/span><span class=\"token punctuation\">]<\/span><\/p>\n<p><span class=\"token comment\"># \u751f\u6210\u7a20\u5bc6\u5411\u91cf<\/span><br \/>\nq_vec <span class=\"token operator\">&#061;<\/span> model<span class=\"token punctuation\">.<\/span>encode<span class=\"token punctuation\">(<\/span>query<span class=\"token punctuation\">,<\/span> instruction<span class=\"token operator\">&#061;<\/span><span class=\"token string\">&#034;\u4e3a\u4ee5\u4e0b\u95ee\u9898\u67e5\u627e\u76f8\u5173\u6587\u6863&#xff1a;&#034;<\/span><span class=\"token punctuation\">)<\/span><br \/>\nd_vecs <span class=\"token operator\">&#061;<\/span> model<span class=\"token punctuation\">.<\/span>encode<span class=\"token punctuation\">(<\/span>docs<span class=\"token punctuation\">)<\/span><\/p>\n<p><span class=\"token comment\"># \u8ba1\u7b97\u76f8\u4f3c\u5ea6<\/span><br \/>\n<span class=\"token keyword\">from<\/span> sklearn<span class=\"token punctuation\">.<\/span>metrics<span class=\"token punctuation\">.<\/span>pairwise <span class=\"token keyword\">import<\/span> cosine_similarity<br \/>\nscores <span class=\"token operator\">&#061;<\/span> cosine_similarity<span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">[<\/span>q_vec<span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">,<\/span> d_vecs<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">[<\/span><span class=\"token number\">0<\/span><span class=\"token punctuation\">]<\/span><br \/>\n<span class=\"token keyword\">print<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;\u6700\u76f8\u5173\u6587\u6863:&#034;<\/span><span class=\"token punctuation\">,<\/span> docs<span class=\"token punctuation\">[<\/span>scores<span class=\"token punctuation\">.<\/span>argmax<span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">)<\/span>  <span class=\"token comment\"># \u8f93\u51fa&#xff1a;\u690d\u6811\u9020\u6797\u53ef\u589e\u52a0\u78b3\u6c47<\/span><\/p>\n<h5>&#x1f48e; \u603b\u7ed3<\/h5>\n<p>\u7a20\u5bc6\u68c0\u7d22\u901a\u8fc7\u795e\u7ecf\u8bed\u4e49\u7f16\u7801\u5f7b\u5e95\u9769\u65b0\u4e86\u4fe1\u606f\u68c0\u7d22\u8303\u5f0f&#xff1a;<\/p>\n<li>\u6548\u679c\u8dc3\u8fc1&#xff1a;\u5728\u95ee\u7b54\u3001\u641c\u7d22\u7b49\u4efb\u52a1\u4e2d\u5168\u9762\u8d85\u8d8a\u7a00\u758f\u68c0\u7d22&#xff08;NQ\u51c6\u786e\u7387 &#043;26.2%&#xff09;&#xff1b;<\/li>\n<li>\u6548\u7387\u7a81\u7834&#xff1a;\u53cc\u5854\u67b6\u6784\u652f\u6301\u4ebf\u7ea7\u6587\u6863\u6beb\u79d2\u7ea7\u54cd\u5e94&#xff0c;\u63a8\u52a8\u5de5\u4e1a\u7ea7RAG\u843d\u5730&#xff1b;<\/li>\n<li>\u5f00\u6e90\u5f15\u9886&#xff1a;DPR\u3001BGE\u7b49\u5f00\u6e90\u6a21\u578b\u63a8\u52a8\u6280\u672f\u6c11\u4e3b\u5316&#xff0c;\u6210\u4e3a\u5927\u6a21\u578b\u65f6\u4ee3\u57fa\u7840\u8bbe\u65bd\u3002<\/li>\n<p>\u968f\u7740\u591a\u6a21\u6001\u5d4c\u5165&#xff08;\u5982BGE-M3&#xff09;\u3001\u6307\u4ee4\u5fae\u8c03\u7b49\u6280\u672f\u7684\u53d1\u5c55&#xff0c;\u7a20\u5bc6\u68c0\u7d22\u6b63\u4ece\u201c\u8bed\u4e49\u5339\u914d\u5de5\u5177\u201d\u8fdb\u5316\u4e3a\u201c\u4efb\u52a1\u81ea\u9002\u5e94\u7684\u77e5\u8bc6\u4e2d\u67a2\u201d&#xff0c;\u6301\u7eed\u8d4b\u80fdAGI\u7cfb\u7edf\u7684\u53ef\u9760\u77e5\u8bc6\u83b7\u53d6 &#x1f50d;\u3002<\/p>\n<p>\u672c\u6587\u7531\u300c\u5927\u5343AI\u52a9\u624b\u300d\u539f\u521b\u53d1\u5e03&#xff0c;\u4e13\u6ce8\u7528\u771f\u8bdd\u8bb2AI&#xff0c;\u56de\u5f52\u6280\u672f\u672c\u8d28\u3002\u62d2\u7edd\u795e\u8bdd\u6216\u5996\u9b54\u5316\u3002\u641c\u7d22\u300c\u5927\u5343AI\u52a9\u624b\u300d\u5173\u6ce8\u6211&#xff0c;\u4e00\u8d77\u6495\u6389\u8fc7\u5ea6\u5305\u88c5&#xff0c;\u5b66\u4e60\u771f\u5b9e\u7684AI\u6280\u672f&#xff01;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u6587\u7ae0\u6d4f\u89c8\u9605\u8bfb1.1k\u6b21\uff0c\u70b9\u8d5e28\u6b21\uff0c\u6536\u85cf25\u6b21\u3002\u7a20\u5bc6\u68c0\u7d22\uff08Dense Retrieval\uff09\u662f\u4e00\u79cd\u3002<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[5055,6236,81,6237,50,6238,132,86,6235],"topic":[],"class_list":["post-58988","post","type-post","status-publish","format-standard","hentry","category-server","tag-other","tag-dense-retrieval","tag-python","tag-retrieval","tag-50","tag-6238","tag-132","tag-86","tag-6235"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v20.3 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>\u7a20\u5bc6\u68c0\u7d22\uff1a\u57fa\u4e8e\u795e\u7ecf\u5d4c\u5165\u7684\u9ad8\u6548\u8bed\u4e49\u641c\u7d22\u8303\u5f0f - \u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" 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