{"id":165,"date":"2026-04-27T11:13:10","date_gmt":"2026-04-27T03:13:10","guid":{"rendered":"https:\/\/www.bojinhu.xyz\/index.php\/2026\/04\/27\/rag-knowledge-injection-retrieval-reranking\/"},"modified":"2026-04-27T11:13:10","modified_gmt":"2026-04-27T03:13:10","slug":"rag-knowledge-injection-retrieval-reranking","status":"publish","type":"post","link":"https:\/\/www.bojinhu.xyz\/index.php\/2026\/04\/27\/rag-knowledge-injection-retrieval-reranking\/","title":{"rendered":"RAG \u76f8\u5173\u6280\u672f\uff1a\u4ece\u68c0\u7d22\u589e\u5f3a\u5230\u53ef\u63a7\u77e5\u8bc6\u6ce8\u5165"},"content":{"rendered":"<h1>RAG \u76f8\u5173\u6280\u672f\uff1a\u4ece\u68c0\u7d22\u589e\u5f3a\u5230\u53ef\u63a7\u77e5\u8bc6\u6ce8\u5165<\/h1>\n<p>\u6700\u8fd1\u6574\u7406 AI \u5e94\u7528\u67b6\u6784\u65f6\uff0cRAG \u662f\u7ed5\u4e0d\u5f00\u7684\u4e00\u5757\u3002\u5b83\u770b\u8d77\u6765\u50cf\u4e00\u4e2a\u5f88\u6734\u7d20\u7684\u529e\u6cd5\uff1a\u7528\u6237\u63d0\u95ee\uff0c\u7cfb\u7edf\u53bb\u77e5\u8bc6\u5e93\u91cc\u627e\u51e0\u6bb5\u76f8\u5173\u6750\u6599\uff0c\u518d\u628a\u8fd9\u4e9b\u6750\u6599\u585e\u8fdb prompt\uff0c\u8ba9\u6a21\u578b\u57fa\u4e8e\u6750\u6599\u56de\u7b54\u3002<\/p>\n<p>\u4f46\u771f\u6b63\u505a\u5de5\u7a0b\u65f6\u4f1a\u53d1\u73b0\uff0cRAG \u7684\u96be\u70b9\u4e0d\u5728\u201c\u80fd\u4e0d\u80fd\u641c\u5230\u4e1c\u897f\u201d\uff0c\u800c\u5728\u201c\u80fd\u4e0d\u80fd\u7a33\u5b9a\u5730\u641c\u5230\u5bf9\u7684\u4e1c\u897f\uff0c\u5e76\u8ba9\u6a21\u578b\u53ea\u7528\u8fd9\u4e9b\u4e1c\u897f\u505a\u51fa\u53ef\u68c0\u67e5\u7684\u56de\u7b54\u201d\u3002\u8fd9\u7bc7\u7b14\u8bb0\u60f3\u628a\u6211\u5bf9 RAG \u76f8\u5173\u6280\u672f\u7684\u7406\u89e3\u6574\u7406\u6210\u4e00\u6761\u94fe\u8def\uff1a\u4ece\u77e5\u8bc6\u5982\u4f55\u88ab\u5207\u5206\u548c\u7d22\u5f15\uff0c\u5230\u68c0\u7d22\u7ed3\u679c\u5982\u4f55\u88ab\u7b5b\u9009\u3001\u91cd\u6392\u3001\u538b\u7f29\uff0c\u518d\u5230\u56de\u7b54\u5982\u4f55\u88ab\u7ea6\u675f\u548c\u8bc4\u4f30\u3002<\/p>\n<h2>RAG \u89e3\u51b3\u7684\u4e0d\u662f\u6a21\u578b\u8bb0\u5fc6\uff0c\u800c\u662f\u77e5\u8bc6\u5165\u53e3<\/h2>\n<p>\u6211\u4ee5\u524d\u5bb9\u6613\u628a RAG \u7406\u89e3\u6210\u201c\u7ed9\u6a21\u578b\u5916\u6302\u4e00\u4e2a\u77e5\u8bc6\u5e93\u201d\u3002\u8fd9\u4e2a\u8bf4\u6cd5\u6ca1\u9519\uff0c\u4f46\u6709\u70b9\u7c97\u3002<\/p>\n<p>\u66f4\u51c6\u786e\u5730\u8bf4\uff0cRAG \u662f\u7ed9\u6a21\u578b\u63d0\u4f9b\u4e00\u4e2a\u53ef\u63a7\u7684\u77e5\u8bc6\u5165\u53e3\u3002\u6a21\u578b\u672c\u8eab\u6709\u53c2\u6570\u5316\u77e5\u8bc6\uff0c\u4f46\u8fd9\u4e9b\u77e5\u8bc6\u6709\u4e09\u4e2a\u95ee\u9898\uff1a\u66f4\u65b0\u6162\u3001\u6765\u6e90\u4e0d\u53ef\u8ffd\u8e2a\u3001\u5bf9\u79c1\u6709\u4e1a\u52a1\u77e5\u8bc6\u4e0d\u4e86\u89e3\u3002RAG \u628a\u4e00\u90e8\u5206\u77e5\u8bc6\u4ece\u6a21\u578b\u53c2\u6570\u91cc\u62ff\u51fa\u6765\uff0c\u653e\u5230\u5916\u90e8\u7cfb\u7edf\u91cc\u7ba1\u7406\uff1a\u6587\u6863\u53ef\u4ee5\u66f4\u65b0\uff0c\u6765\u6e90\u53ef\u4ee5\u8ffd\u8e2a\uff0c\u53ec\u56de\u8fc7\u7a0b\u53ef\u4ee5\u8bb0\u5f55\uff0c\u56de\u7b54\u4e5f\u53ef\u4ee5\u56de\u5230\u8bc1\u636e\u4e0a\u68c0\u67e5\u3002<\/p>\n<p>\u6240\u4ee5 RAG \u7684\u6838\u5fc3\u4ef7\u503c\u4e0d\u662f\u8ba9\u6a21\u578b\u201c\u77e5\u9053\u66f4\u591a\u201d\uff0c\u800c\u662f\u8ba9\u6a21\u578b\u5728\u56de\u7b54\u67d0\u4e2a\u95ee\u9898\u65f6\uff0c\u53ef\u4ee5\u4e34\u65f6\u62ff\u5230\u4e00\u7ec4\u548c\u5f53\u524d\u95ee\u9898\u9ad8\u5ea6\u76f8\u5173\u3001\u6765\u6e90\u660e\u786e\u3001\u8303\u56f4\u53ef\u63a7\u7684\u6750\u6599\u3002<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.bojinhu.xyz\/wp-content\/uploads\/2026\/04\/concept-map.png\" alt=\"Concept Map\" \/><\/p>\n<h2>\u4e00\u4e2a\u57fa\u672c\u7684 RAG \u94fe\u8def<\/h2>\n<p>\u6211\u628a RAG \u94fe\u8def\u62c6\u6210\u4e24\u4e2a\u9636\u6bb5\uff1a\u79bb\u7ebf\u5efa\u5e93\u548c\u5728\u7ebf\u95ee\u7b54\u3002<\/p>\n<p>\u79bb\u7ebf\u9636\u6bb5\u901a\u5e38\u4ece\u6587\u6863\u5f00\u59cb\u3002\u7cfb\u7edf\u4f1a\u5148\u89e3\u6790 PDF\u3001\u7f51\u9875\u3001Markdown\u3001\u6570\u636e\u5e93\u8bb0\u5f55\u6216\u5185\u90e8\u77e5\u8bc6\u5e93\uff0c\u7136\u540e\u628a\u957f\u6587\u6863\u5207\u6210 chunk\u3002chunk \u7684\u5927\u5c0f\u3001\u91cd\u53e0\u6bd4\u4f8b\u3001\u6807\u9898\u548c\u5143\u6570\u636e\u4f1a\u5f71\u54cd\u540e\u9762\u7684\u53ec\u56de\u6548\u679c\u3002\u5207\u5f97\u592a\u5927\uff0c\u68c0\u7d22\u7ed3\u679c\u4e0d\u591f\u7cbe\u786e\uff1b\u5207\u5f97\u592a\u5c0f\uff0c\u7247\u6bb5\u4f1a\u4e22\u4e0a\u4e0b\u6587\u3002<\/p>\n<p>\u63a5\u4e0b\u6765\u662f\u5411\u91cf\u5316\u548c\u7d22\u5f15\u3002\u6bcf\u4e2a chunk \u4f1a\u901a\u8fc7 embedding \u6a21\u578b\u53d8\u6210\u5411\u91cf\uff0c\u518d\u5199\u5165\u5411\u91cf\u5e93\u6216\u6258\u7ba1\u7684 vector store\u3002\u4e3a\u4e86\u540e\u7eed\u8fc7\u6ee4\uff0c\u901a\u5e38\u8fd8\u4f1a\u4fdd\u5b58\u6587\u6863\u6765\u6e90\u3001\u65f6\u95f4\u3001\u90e8\u95e8\u3001\u6743\u9650\u3001\u6807\u9898\u3001\u7248\u672c\u53f7\u7b49 metadata\u3002\u8fd9\u6837\u7ebf\u4e0a\u68c0\u7d22\u65f6\u5c31\u4e0d\u53ea\u662f\u201c\u8bed\u4e49\u76f8\u4f3c\u201d\uff0c\u8fd8\u53ef\u4ee5\u5e26\u4e0a\u4e1a\u52a1\u7ea6\u675f\u3002<\/p>\n<p>\u5728\u7ebf\u9636\u6bb5\u4ece\u7528\u6237\u95ee\u9898\u5f00\u59cb\u3002\u7cfb\u7edf\u5148\u628a\u95ee\u9898\u6539\u5199\u6216\u6269\u5c55\u6210\u9002\u5408\u68c0\u7d22\u7684 query\uff0c\u7136\u540e\u6267\u884c\u53ec\u56de\u3002\u53ec\u56de\u53ef\u4ee5\u662f\u5411\u91cf\u68c0\u7d22\uff0c\u4e5f\u53ef\u4ee5\u6df7\u5408 BM25 \u8fd9\u7c7b\u5173\u952e\u8bcd\u68c0\u7d22\u3002\u62ff\u5230\u5019\u9009 chunk \u4e4b\u540e\uff0c\u5e38\u89c1\u505a\u6cd5\u4e0d\u662f\u76f4\u63a5\u585e\u7ed9\u6a21\u578b\uff0c\u800c\u662f\u7ecf\u8fc7 reranking\u3001\u53bb\u91cd\u3001\u538b\u7f29\u548c\u5f15\u7528\u6574\u7406\uff0c\u6700\u540e\u518d\u4ea4\u7ed9\u751f\u6210\u6a21\u578b\u3002<\/p>\n<p>\u8fd9\u4e2a\u8fc7\u7a0b\u770b\u8d77\u6765\u957f\uff0c\u4f46\u6bcf\u4e00\u5c42\u90fd\u6709\u660e\u786e\u76ee\u7684\uff1a\u53ec\u56de\u8d1f\u8d23\u4e0d\u6f0f\uff0c\u91cd\u6392\u8d1f\u8d23\u6392\u5e8f\uff0c\u538b\u7f29\u8d1f\u8d23\u63a7\u5236\u4e0a\u4e0b\u6587\u6210\u672c\uff0c\u751f\u6210\u7ea6\u675f\u8d1f\u8d23\u51cf\u5c11\u5e7b\u89c9\u3002<\/p>\n<h2>\u68c0\u7d22\u4e0d\u53ea\u662f\u5411\u91cf\u76f8\u4f3c\u5ea6<\/h2>\n<p>\u5411\u91cf\u68c0\u7d22\u662f RAG \u7684\u6807\u5fd7\u6027\u6280\u672f\uff0c\u4f46\u5b83\u4e0d\u662f\u5168\u90e8\u3002<\/p>\n<p>embedding \u64c5\u957f\u6355\u6349\u8bed\u4e49\u76f8\u4f3c\u3002\u6bd4\u5982\u7528\u6237\u95ee\u201c\u9000\u6b3e\u591a\u4e45\u80fd\u5230\u8d26\u201d\uff0c\u7cfb\u7edf\u53ef\u80fd\u53ec\u56de\u201c\u9000\u8d27\u6d41\u7a0b\u5b8c\u6210\u540e 5 \u4e2a\u5de5\u4f5c\u65e5\u5185\u539f\u8def\u8fd4\u56de\u201d\u8fd9\u6837\u7684\u7247\u6bb5\uff0c\u5373\u4f7f\u4e24\u53e5\u8bdd\u6ca1\u6709\u592a\u591a\u76f8\u540c\u8bcd\u3002\u8fd9\u662f\u4f20\u7edf\u5173\u952e\u8bcd\u68c0\u7d22\u4e0d\u5bb9\u6613\u505a\u5230\u7684\u3002<\/p>\n<p>\u4f46\u5173\u952e\u8bcd\u68c0\u7d22\u4e5f\u6709\u81ea\u5df1\u7684\u4ef7\u503c\u3002\u4ea7\u54c1\u578b\u53f7\u3001\u9519\u8bef\u7801\u3001\u4eba\u540d\u3001\u6cd5\u89c4\u6761\u6b3e\u3001\u63a5\u53e3\u5b57\u6bb5\u540d\uff0c\u5f88\u591a\u65f6\u5019\u9700\u8981\u7cbe\u786e\u5339\u914d\u3002\u7eaf\u5411\u91cf\u68c0\u7d22\u53ef\u80fd\u4f1a\u627e\u5230\u201c\u8bed\u4e49\u4e0a\u50cf\u201d\u7684\u5185\u5bb9\uff0c\u5374\u9519\u8fc7\u771f\u6b63\u5305\u542b\u5173\u952e\u5b57\u7684\u6587\u6863\u3002\u56e0\u6b64\u66f4\u7a33\u7684 RAG \u5f80\u5f80\u662f hybrid retrieval\uff1a\u5411\u91cf\u53ec\u56de\u8d1f\u8d23\u8bed\u4e49\uff0cBM25 \u6216\u5012\u6392\u7d22\u5f15\u8d1f\u8d23\u7cbe\u786e\u8bcd\uff0c\u6700\u540e\u7528 rank fusion \u6216 reranker \u5408\u5e76\u7ed3\u679c\u3002<\/p>\n<p>Anthropic \u63d0\u5230\u7684 Contextual Retrieval \u4e5f\u6307\u5411\u540c\u4e00\u4e2a\u95ee\u9898\uff1achunk \u88ab\u5207\u51fa\u6765\u4e4b\u540e\uff0c\u53ef\u80fd\u4e22\u6389\u6587\u6863\u7ea7\u4e0a\u4e0b\u6587\u3002\u4e00\u4e2a\u7247\u6bb5\u91cc\u5199\u7740\u201c\u6536\u5165\u589e\u957f 3%\u201d\uff0c\u4f46\u6ca1\u6709\u516c\u53f8\u540d\u548c\u5b63\u5ea6\u4fe1\u606f\uff0c\u68c0\u7d22\u548c\u751f\u6210\u90fd\u4f1a\u53d8\u5f97\u5371\u9669\u3002\u89e3\u51b3\u601d\u8def\u662f\u5728 chunk \u524d\u8865\u5145\u7531\u6587\u6863\u4e0a\u4e0b\u6587\u751f\u6210\u7684\u77ed\u8bf4\u660e\uff0c\u8ba9\u5b83\u5728 embedding \u548c\u5173\u952e\u8bcd\u7d22\u5f15\u91cc\u90fd\u5e26\u4e0a\u5fc5\u8981\u80cc\u666f\u3002<\/p>\n<h2>Reranking \u662f RAG \u7684\u7b2c\u4e8c\u9053\u95f8<\/h2>\n<p>\u53ec\u56de\u9636\u6bb5\u901a\u5e38\u5b81\u53ef\u591a\u62ff\u4e00\u70b9\u5019\u9009\u7ed3\u679c\uff0c\u56e0\u4e3a\u6f0f\u6389\u5173\u952e\u8bc1\u636e\u6bd4\u591a\u62ff\u51e0\u4e2a\u566a\u58f0\u66f4\u9ebb\u70e6\u3002\u4f46\u8fd9\u4e9b\u5019\u9009\u7ed3\u679c\u4e0d\u80fd\u539f\u6837\u4ea4\u7ed9\u6a21\u578b\uff0c\u5426\u5219\u4e0a\u4e0b\u6587\u4f1a\u53d8\u957f\uff0c\u566a\u58f0\u4f1a\u53d8\u591a\uff0c\u56de\u7b54\u4e5f\u66f4\u5bb9\u6613\u88ab\u65e0\u5173\u7247\u6bb5\u5e26\u504f\u3002<\/p>\n<p>reranking \u7684\u4f5c\u7528\u5c31\u662f\u7b2c\u4e8c\u9053\u95f8\u3002\u5b83\u4e0d\u8d1f\u8d23\u4ece\u5168\u5e93\u91cc\u627e\u4e1c\u897f\uff0c\u800c\u662f\u5728\u5019\u9009\u96c6\u91cc\u91cd\u65b0\u5224\u65ad\u201c\u54ea\u4e9b\u7247\u6bb5\u5bf9\u5f53\u524d\u95ee\u9898\u6700\u6709\u5e2e\u52a9\u201d\u3002\u8fd9\u4e2a\u5224\u65ad\u53ef\u4ee5\u7528 cross-encoder\u3001\u4e13\u95e8\u7684 reranker \u6a21\u578b\uff0c\u4e5f\u53ef\u4ee5\u7528\u8f7b\u91cf\u89c4\u5219\u548c LLM \u8bc4\u5206\u7ec4\u5408\u5b8c\u6210\u3002<\/p>\n<p>\u6211\u89c9\u5f97 reranking \u7684\u4ef7\u503c\u6709\u4e09\u70b9\uff1a<\/p>\n<ul>\n<li>\u628a\u771f\u6b63\u80fd\u56de\u7b54\u95ee\u9898\u7684 chunk \u6392\u5230\u524d\u9762\u3002<\/li>\n<li>\u964d\u4f4e\u76f8\u4f3c\u4f46\u65e0\u7528\u7684\u6750\u6599\u8fdb\u5165 prompt \u7684\u6982\u7387\u3002<\/li>\n<li>\u8ba9 top-k \u7684\u9009\u62e9\u66f4\u6709\u5f39\u6027\uff0c\u800c\u4e0d\u662f\u56fa\u5b9a\u62ff\u524d 5 \u6bb5\u6216\u524d 10 \u6bb5\u3002<\/li>\n<\/ul>\n<p>\u8fd1\u4e00\u5e74\u5f88\u591a RAG \u8ba8\u8bba\u90fd\u56f4\u7ed5\u52a8\u6001\u91cd\u6392\u3001\u4e0a\u4e0b\u6587\u538b\u7f29\u548c\u81ea\u9002\u5e94 top-k \u5c55\u5f00\uff0c\u672c\u8d28\u4e0a\u90fd\u662f\u5728\u89e3\u51b3\u540c\u4e00\u4e2a\u77db\u76fe\uff1a\u6750\u6599\u592a\u5c11\u4f1a\u6f0f\u8bc1\u636e\uff0c\u6750\u6599\u592a\u591a\u4f1a\u5f15\u5165\u566a\u58f0\u548c\u6210\u672c\u3002<\/p>\n<h2>\u751f\u6210\u9636\u6bb5\u8981\u6709\u8fb9\u754c<\/h2>\n<p>RAG \u6700\u540e\u4e00\u6b65\u662f\u751f\u6210\uff0c\u4f46\u751f\u6210\u4e0d\u662f\u7b80\u5355\u5730\u628a\u68c0\u7d22\u7ed3\u679c\u62fc\u5230 prompt \u91cc\u3002<\/p>\n<p>\u4e00\u4e2a\u53ef\u63a7\u7684 RAG prompt \u81f3\u5c11\u8981\u544a\u8bc9\u6a21\u578b\u51e0\u4ef6\u4e8b\uff1a\u54ea\u4e9b\u5185\u5bb9\u662f\u53ef\u7528\u8bc1\u636e\uff0c\u7528\u6237\u95ee\u9898\u662f\u4ec0\u4e48\uff0c\u56de\u7b54\u5e94\u8be5\u9075\u5b88\u4ec0\u4e48\u683c\u5f0f\uff0c\u9047\u5230\u8bc1\u636e\u4e0d\u8db3\u65f6\u5e94\u8be5\u600e\u4e48\u8bf4\uff0c\u662f\u5426\u9700\u8981\u5f15\u7528\u6765\u6e90\uff0c\u662f\u5426\u5141\u8bb8\u6839\u636e\u5e38\u8bc6\u8865\u5145\u3002<\/p>\n<p>\u8fd9\u91cc\u6700\u5bb9\u6613\u51fa\u9519\u7684\u662f\u201c\u68c0\u7d22\u5230\u4e86\u6750\u6599\uff0c\u6240\u4ee5\u56de\u7b54\u4e00\u5b9a\u53ef\u9760\u201d\u3002\u5176\u5b9e\u4e0d\u4e00\u5b9a\u3002\u68c0\u7d22\u7ed3\u679c\u53ef\u80fd\u4e0d\u5b8c\u6574\uff0c\u53ef\u80fd\u8fc7\u671f\uff0c\u53ef\u80fd\u4e92\u76f8\u51b2\u7a81\uff0c\u4e5f\u53ef\u80fd\u53ea\u56de\u7b54\u4e86\u95ee\u9898\u7684\u4e00\u534a\u3002\u597d\u7684 RAG \u7cfb\u7edf\u5e94\u8be5\u5141\u8bb8\u6a21\u578b\u8bf4\u201c\u73b0\u6709\u8d44\u6599\u4e0d\u8db3\u4ee5\u5224\u65ad\u201d\uff0c\u800c\u4e0d\u662f\u5f3a\u884c\u7f16\u4e00\u4e2a\u5b8c\u6574\u7b54\u6848\u3002<\/p>\n<p>\u8fd9\u4e5f\u662f\u6211\u7406\u89e3\u7684 RAG \u548c\u666e\u901a prompt engineering \u7684\u533a\u522b\uff1aRAG \u4e0d\u53ea\u662f prompt \u91cc\u591a\u4e86\u4e00\u6bb5 context\uff0c\u800c\u662f\u628a\u201c\u8bc1\u636e\u4ece\u54ea\u91cc\u6765\u3001\u8bc1\u636e\u662f\u5426\u8db3\u591f\u3001\u56de\u7b54\u662f\u5426\u5fe0\u4e8e\u8bc1\u636e\u201d\u53d8\u6210\u7cfb\u7edf\u7684\u4e00\u90e8\u5206\u3002<\/p>\n<h2>Agentic RAG\uff1a\u8ba9\u68c0\u7d22\u53d8\u6210\u591a\u6b65\u52a8\u4f5c<\/h2>\n<p>\u4f20\u7edf RAG \u5f80\u5f80\u662f\u4e00\u95ee\u4e00\u641c\u4e00\u7b54\u3002Agentic RAG \u5219\u66f4\u50cf\u4e00\u4e2a\u5c0f\u578b\u8c03\u67e5\u6d41\u7a0b\uff1a\u6a21\u578b\u53ef\u4ee5\u5148\u5206\u6790\u95ee\u9898\uff0c\u518d\u51b3\u5b9a\u67e5\u54ea\u4e9b\u7d22\u5f15\u3001\u7528\u54ea\u4e9b\u8fc7\u6ee4\u6761\u4ef6\u3001\u662f\u5426\u9700\u8981\u6539\u5199 query\u3001\u662f\u5426\u9700\u8981\u4e8c\u6b21\u68c0\u7d22\uff0c\u6700\u540e\u518d\u7efc\u5408\u56de\u7b54\u3002<\/p>\n<p>\u8fd9\u79cd\u65b9\u5f0f\u9002\u5408\u590d\u6742\u95ee\u9898\u3002\u6bd4\u5982\u7528\u6237\u95ee\u201c\u8fc7\u53bb\u4e24\u7248\u4ea7\u54c1\u6587\u6863\u91cc\uff0c\u6743\u9650\u6a21\u578b\u53d8\u5316\u5bf9\u4f01\u4e1a\u5ba2\u6237\u6709\u4ec0\u4e48\u5f71\u54cd\u201d\uff0c\u5355\u6b21\u68c0\u7d22\u5f88\u53ef\u80fd\u4e0d\u591f\u3002\u7cfb\u7edf\u53ef\u80fd\u9700\u8981\u5148\u627e\u7248\u672c\u8bf4\u660e\uff0c\u518d\u627e\u6743\u9650\u6587\u6863\uff0c\u518d\u627e\u4f01\u4e1a\u914d\u7f6e\u793a\u4f8b\uff0c\u6700\u540e\u6bd4\u8f83\u5dee\u5f02\u3002<\/p>\n<p>\u4f46 Agentic RAG \u4e5f\u66f4\u9700\u8981\u7ea6\u675f\u3002\u68c0\u7d22\u6b65\u9aa4\u8d8a\u591a\uff0c\u8d8a\u8981\u8bb0\u5f55\u6bcf\u4e00\u6b65 query\u3001\u547d\u4e2d\u7684\u6587\u6863\u3001\u9009\u62e9\u6216\u4e22\u5f03\u7684\u539f\u56e0\u3002\u5426\u5219\u5b83\u4f1a\u53d8\u6210\u53e6\u4e00\u4e2a\u9ed1\u7bb1\uff1a\u770b\u8d77\u6765\u505a\u4e86\u5f88\u591a\u641c\u7d22\uff0c\u4f46\u6700\u540e\u4ecd\u7136\u4e0d\u77e5\u9053\u7b54\u6848\u4e3a\u4ec0\u4e48\u53ef\u4fe1\u3002<\/p>\n<h2>RAG \u7684\u8bc4\u4f30\u4e0d\u80fd\u53ea\u770b\u6700\u7ec8\u56de\u7b54<\/h2>\n<p>\u8bc4\u4f30 RAG \u65f6\uff0c\u53ea\u770b\u6700\u7ec8\u7b54\u6848\u662f\u4e0d\u591f\u7684\u3002\u56e0\u4e3a\u9519\u8bef\u53ef\u80fd\u53d1\u751f\u5728\u4efb\u4f55\u4e00\u5c42\u3002<\/p>\n<p>\u5982\u679c\u6ca1\u6709\u53ec\u56de\u6b63\u786e\u6587\u6863\uff0c\u662f retrieval \u95ee\u9898\uff1b\u5982\u679c\u53ec\u56de\u4e86\u4f46\u6392\u5728\u540e\u9762\u6ca1\u8fdb\u4e0a\u4e0b\u6587\uff0c\u662f reranking \u6216 top-k \u95ee\u9898\uff1b\u5982\u679c\u6750\u6599\u8fdb\u4e86\u4e0a\u4e0b\u6587\u4f46\u6a21\u578b\u6ca1\u6709\u7528\uff0c\u662f\u751f\u6210\u7ea6\u675f\u95ee\u9898\uff1b\u5982\u679c\u6750\u6599\u672c\u8eab\u8fc7\u671f\u6216\u51b2\u7a81\uff0c\u662f\u77e5\u8bc6\u5e93\u6cbb\u7406\u95ee\u9898\u3002<\/p>\n<p>\u6240\u4ee5\u6211\u66f4\u503e\u5411\u4e8e\u628a RAG \u8bc4\u4f30\u62c6\u6210\u51e0\u7c7b\u6307\u6807\uff1a<\/p>\n<ul>\n<li>\u53ec\u56de\u6307\u6807\uff1a\u6b63\u786e\u8bc1\u636e\u662f\u5426\u8fdb\u5165\u5019\u9009\u96c6\u3002<\/li>\n<li>\u6392\u5e8f\u6307\u6807\uff1a\u6b63\u786e\u8bc1\u636e\u662f\u5426\u8fdb\u5165\u6700\u7ec8\u4e0a\u4e0b\u6587\u3002<\/li>\n<li>\u5fe0\u5b9e\u5ea6\u6307\u6807\uff1a\u56de\u7b54\u662f\u5426\u88ab\u8bc1\u636e\u652f\u6301\u3002<\/li>\n<li>\u53ef\u7528\u6027\u6307\u6807\uff1a\u56de\u7b54\u662f\u5426\u89e3\u51b3\u7528\u6237\u95ee\u9898\u3002<\/li>\n<li>\u6210\u672c\u6307\u6807\uff1a\u68c0\u7d22\u3001\u91cd\u6392\u3001\u4e0a\u4e0b\u6587\u957f\u5ea6\u548c\u5ef6\u8fdf\u662f\u5426\u53ef\u63a5\u53d7\u3002<\/li>\n<\/ul>\n<p>\u8fd9\u4e9b\u6307\u6807\u4e0d\u4e00\u5b9a\u90fd\u8981\u81ea\u52a8\u5316\uff0c\u4f46\u81f3\u5c11\u5e94\u8be5\u5728\u65e5\u5fd7\u91cc\u4fdd\u7559\u8db3\u591f\u4fe1\u606f\uff0c\u8ba9\u5931\u8d25\u53ef\u4ee5\u590d\u76d8\u3002<\/p>\n<h2>\u6211\u5bf9 RAG \u5de5\u7a0b\u5316\u7684\u7406\u89e3<\/h2>\n<p>RAG \u7684\u5de5\u7a0b\u91cd\u70b9\u4e0d\u662f\u201c\u63a5\u4e00\u4e2a\u5411\u91cf\u6570\u636e\u5e93\u201d\uff0c\u800c\u662f\u628a\u77e5\u8bc6\u6d41\u8f6c\u8fc7\u7a0b\u505a\u6210\u4e00\u6761\u53ef\u89c2\u5bdf\u7684\u94fe\u8def\u3002<\/p>\n<p>\u6587\u6863\u8fdb\u5165\u7cfb\u7edf\u65f6\uff0c\u8981\u77e5\u9053\u5b83\u4ece\u54ea\u91cc\u6765\u3001\u5c5e\u4e8e\u8c01\u3001\u4ec0\u4e48\u65f6\u5019\u66f4\u65b0\u3001\u8c01\u80fd\u8bbf\u95ee\u3002\u6587\u6863\u88ab\u5207\u6210 chunk \u65f6\uff0c\u8981\u5c3d\u91cf\u4fdd\u7559\u6807\u9898\u3001\u7ae0\u8282\u3001\u4e0a\u4e0b\u6587\u548c\u5143\u6570\u636e\u3002\u68c0\u7d22\u65f6\uff0c\u8981\u540c\u65f6\u8003\u8651\u8bed\u4e49\u76f8\u4f3c\u3001\u5173\u952e\u8bcd\u7cbe\u786e\u5339\u914d\u548c\u6743\u9650\u8fc7\u6ee4\u3002\u91cd\u6392\u65f6\uff0c\u8981\u63a7\u5236\u566a\u58f0\u8fdb\u5165 prompt\u3002\u751f\u6210\u65f6\uff0c\u8981\u660e\u786e\u8bc1\u636e\u8fb9\u754c\u3002\u53d1\u5e03\u6216\u843d\u5730\u65f6\uff0c\u8981\u80fd\u89e3\u91ca\u7b54\u6848\u6765\u81ea\u54ea\u4e9b\u6750\u6599\u3002<\/p>\n<p>\u8fd9\u6837\u770b\uff0cRAG \u66f4\u50cf\u77e5\u8bc6\u7cfb\u7edf\u548c\u751f\u6210\u6a21\u578b\u4e4b\u95f4\u7684\u4e00\u5c42\u534f\u8bae\u3002\u5b83\u65e2\u4e0d\u5b8c\u5168\u5c5e\u4e8e\u641c\u7d22\uff0c\u4e5f\u4e0d\u5b8c\u5168\u5c5e\u4e8e\u5927\u6a21\u578b\uff0c\u800c\u662f\u5728\u4e24\u8005\u4e4b\u95f4\u8d1f\u8d23\u628a\u201c\u5916\u90e8\u77e5\u8bc6\u201d\u53d8\u6210\u201c\u6a21\u578b\u53ef\u7528\u3001\u7528\u6237\u53ef\u4fe1\u3001\u7cfb\u7edf\u53ef\u63a7\u201d\u7684\u4e0a\u4e0b\u6587\u3002<\/p>\n<h2>\u5c0f\u7ed3<\/h2>\n<p>\u6211\u4f1a\u7528\u4e94\u53e5\u8bdd\u603b\u7ed3\u8fd9\u6b21\u5bf9 RAG \u7684\u7406\u89e3\uff1a<\/p>\n<ul>\n<li>RAG \u662f\u53ef\u63a7\u77e5\u8bc6\u5165\u53e3\uff0c\u4e0d\u662f\u7b80\u5355\u5916\u6302\u8bb0\u5fc6\u3002<\/li>\n<li>chunk \u8bbe\u8ba1\u51b3\u5b9a\u4e86\u77e5\u8bc6\u80fd\u4e0d\u80fd\u88ab\u6b63\u786e\u53ec\u56de\u3002<\/li>\n<li>hybrid retrieval \u548c reranking \u662f\u63d0\u5347\u7a33\u5b9a\u6027\u7684\u5173\u952e\u3002<\/li>\n<li>\u751f\u6210\u9636\u6bb5\u5fc5\u987b\u6709\u8bc1\u636e\u8fb9\u754c\u548c\u4e0d\u8db3\u65f6\u7684\u9000\u8def\u3002<\/li>\n<li>\u771f\u6b63\u53ef\u9760\u7684 RAG \u8981\u8bc4\u4f30\u6574\u6761\u94fe\u8def\uff0c\u800c\u4e0d\u662f\u53ea\u8bc4\u4f30\u6700\u7ec8\u56de\u7b54\u3002<\/li>\n<\/ul>\n<p>\u5982\u679c\u8bf4\u5927\u6a21\u578b\u63d0\u4f9b\u7684\u662f\u8bed\u8a00\u548c\u63a8\u7406\u80fd\u529b\uff0c\u90a3\u4e48 RAG \u63d0\u4f9b\u7684\u5c31\u662f\u53ef\u66f4\u65b0\u3001\u53ef\u8ffd\u8e2a\u3001\u53ef\u6cbb\u7406\u7684\u77e5\u8bc6\u901a\u9053\u3002\u4e24\u8005\u7ed3\u5408\u5f97\u597d\uff0cAI \u5e94\u7528\u624d\u66f4\u63a5\u8fd1\u53ef\u7ef4\u62a4\u7684\u8f6f\u4ef6\u7cfb\u7edf\uff0c\u800c\u4e0d\u662f\u4e00\u6b21\u6027\u7684\u95ee\u7b54\u754c\u9762\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u4e00\u7bc7\u5173\u4e8e RAG \u7684\u5b66\u4e60\u7b14\u8bb0\uff1aRAG \u4e0d\u662f\u628a\u5411\u91cf\u6570\u636e\u5e93\u63a5\u5230\u6a21\u578b\u524d\u9762\u90a3\u4e48\u7b80\u5355\uff0c\u800c\u662f\u4e00\u6761\u4ece\u77e5\u8bc6\u7ec4\u7ec7\u3001\u53ec\u56de\u3001\u91cd\u6392\u3001\u538b\u7f29\u5230\u751f\u6210\u7ea6\u675f\u7684\u5de5\u7a0b\u94fe\u8def\u3002<\/p>\n","protected":false},"author":2,"featured_media":164,"comment_status":"","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[8],"tags":[37,60,63,61,62],"class_list":["post-165","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-mtsb","tag-llm","tag-rag","tag-reranking","tag-retrieval","tag-vector-search"],"_links":{"self":[{"href":"https:\/\/www.bojinhu.xyz\/index.php\/wp-json\/wp\/v2\/posts\/165","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.bojinhu.xyz\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.bojinhu.xyz\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.bojinhu.xyz\/index.php\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.bojinhu.xyz\/index.php\/wp-json\/wp\/v2\/comments?post=165"}],"version-history":[{"count":0,"href":"https:\/\/www.bojinhu.xyz\/index.php\/wp-json\/wp\/v2\/posts\/165\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.bojinhu.xyz\/index.php\/wp-json\/wp\/v2\/media\/164"}],"wp:attachment":[{"href":"https:\/\/www.bojinhu.xyz\/index.php\/wp-json\/wp\/v2\/media?parent=165"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.bojinhu.xyz\/index.php\/wp-json\/wp\/v2\/categories?post=165"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.bojinhu.xyz\/index.php\/wp-json\/wp\/v2\/tags?post=165"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}