{"id":20353,"date":"2026-02-24T09:51:42","date_gmt":"2026-02-24T01:51:42","guid":{"rendered":"https:\/\/92it.top\/?p=20353"},"modified":"2026-02-24T09:51:42","modified_gmt":"2026-02-24T01:51:42","slug":"langchain-%e5%90%91%e9%87%8f%e6%95%b0%e6%8d%ae%e5%ba%93%e6%80%8e%e4%b9%88%e9%80%89_%e7%b3%bb%e5%88%9713","status":"publish","type":"post","link":"https:\/\/92it.top\/?p=20353","title":{"rendered":"LangChain \u5411\u91cf\u6570\u636e\u5e93\u600e\u4e48\u9009_\u7cfb\u521713"},"content":{"rendered":"\n<p>\u8f6c\u8f7d\uff1a\u5c0f\u7ea2\u4e66 AI\u4ea7\u54c1\u8d75\u54e5<\/p>\n\n\n\n<p><strong>\u524d\u8a00\ud83d\udd16<\/strong><\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<p>\u4e0a\u4e00\u7bc7\u7b14\u8bb0\u6211\u4eec\u804a\u4e86 LangChain \u5728\u751f\u4ea7\u73af\u5883\u7684\u5751\uff0c\u5176\u4e2d\u6700\u5927\u7684\u4e00\u4e2a\u5751\u5c31\u662f RAG\uff08\u68c0\u7d22\u589e\u5f3a\u751f\u6210\uff09\u7684\u6548\u679c\u95ee\u9898\u3002\u800c RAG \u6700\u91cd\u8981\u7684\uff0c\u4e0d\u5c31\u662f\u5411\u91cf\u6570\u636e\u5e93\uff08Vector Database\uff09\u561b\u3002<\/p>\n\n\n\n<p>\u5f88\u591a\u4ea7\u54c1\u7ecf\u7406\u5728\u89c4\u5212 AI \u9879\u76ee\u65f6\uff0c\u542c\u5230\u5f00\u53d1\u8bf4 \u201c\u6211\u4eec\u8981\u9009\u578b\u5411\u91cf\u5e93\u201d\uff0c\u5f80\u5f80\u4e00\u8138\u61f5\uff1a<\/p>\n\n\n\n<ul>\n<li>\u6570\u636e\u5e93\u4e0d\u5c31\u662f MySQL\u3001PostgreSQL \u5417\uff1f<\/li>\n\n\n\n<li>\u4e3a\u4ec0\u4e48\u4e3a\u4e86 AI \u8981\u4e13\u95e8\u641e\u4e2a\u65b0\u7684\uff1f<\/li>\n\n\n\n<li>\u5e02\u9762\u4e0a\u7684 Chroma\u3001FAISS\u3001Milvus\u3001Pinecone \u5230\u5e95\u6709\u5565\u533a\u522b\uff1f<\/li>\n<\/ul>\n\n\n\n<p>\u4eca\u5929\uff0c\u6211\u4eec\u6765\u804a\u804a\u8fd9\u4e2a\u8bdd\u9898\uff1a\u5728 LangChain \u91cc\u600e\u4e48\u9009\u62e9\u5411\u91cf\u6570\u636e\u5e93\u3002\u51c6\u5907\u597d\u4e86\u5417\uff1f\u51fa\u53d1\uff01<\/p>\n\n\n\n<p>\u3000\u3000<\/p>\n\n\n\n<p><strong>\u4e00\u3001\u4e3a\u4ec0\u4e48\u8981\u7528\u5411\u91cf\u6570\u636e\u5e93\uff1f<\/strong><\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<p>\u5728\u4f20\u7edf\u8f6f\u4ef6\u5f00\u53d1\u4e2d\uff0c\u6211\u4eec\u7528 MySQL \u5b58\u7528\u6237\u8d44\u6599\uff0c\u7528 Redis \u5b58\u7f13\u5b58\uff0c\u7528 ElasticSearch \u505a\u5173\u952e\u8bcd\u641c\u7d22\u3002<\/p>\n\n\n\n<p>\u4f46\u5728 AI \u65f6\u4ee3\uff0c\u8fd9\u4e9b\u90fd\u4e0d\u591f\u7528\u4e86\u3002<\/p>\n\n\n\n<p><strong>\ud83d\udd391. \u8ba1\u7b97\u673a\u8bfb\u4e0d\u61c2 \u201c\u610f\u601d\u201d<\/strong><\/p>\n\n\n\n<p>\u4f20\u7edf\u7684\u641c\u7d22\u662f<strong>\u5173\u952e\u8bcd\u5339\u914d<\/strong>\u3002<\/p>\n\n\n\n<ul>\n<li>\u7528\u6237\u641c\uff1a\u201c\u82f9\u679c\u624b\u673a\u6ca1\u7535\u4e86\u600e\u4e48\u529e\uff1f\u201d<\/li>\n\n\n\n<li>\u6570\u636e\u5e93\u627e\uff1a\u201c\u82f9\u679c\u201d\u3001\u201c\u624b\u673a\u201d\u3001\u201c\u6ca1\u7535\u201d\u3002<\/li>\n\n\n\n<li>\u5982\u679c\u4f60\u6709\u4e00\u7bc7\u6587\u6863\u5199\u7684\u662f\uff1a\u201ciPhone \u7535\u6c60\u8017\u5c3d\u540e\u7684\u5904\u7406\u65b9\u6848\u201d\uff0c\u8fd9\u91cc\u6ca1\u6709 \u201c\u82f9\u679c\u201d \u4e5f\u6ca1\u6709 \u201c\u6ca1\u7535\u201d\uff0c\u4f20\u7edf\u6570\u636e\u5e93\u53ef\u80fd\u5c31\u641c\u4e0d\u5230\u3002<\/li>\n<\/ul>\n\n\n\n<p>\u3000\u3000<\/p>\n\n\n\n<p><strong>\ud83d\udd392. Vector\uff08\u5411\u91cf\uff09\u662f AI \u7684\u901a\u7528\u8bed\u8a00<\/strong><\/p>\n\n\n\n<p>\u5927\u6a21\u578b\uff08Embedding Model\uff09\u628a\u4e00\u6bb5\u6587\u5b57\u53d8\u6210\u4e00\u4e32\u6570\u5b57\uff08\u901a\u5e38\u662f 768 \u4e2a\u6216 1536 \u4e2a\u6d6e\u70b9\u6570\uff09\u3002\u8fd9\u4e32\u6570\u5b57\u5c31\u53eb <strong>\u5411\u91cf<\/strong>\u3002<\/p>\n\n\n\n<ul>\n<li>\u201c\u82f9\u679c\u624b\u673a\u201d \u53d8\u6210\u4e86 <code>[0.1, 0.5, -0.3, ...]<\/code><\/li>\n\n\n\n<li>\u201ciPhone\u201d \u53d8\u6210\u4e86 <code>[0.12, 0.48, -0.29, ...]<\/code><\/li>\n<\/ul>\n\n\n\n<p>\u8fd9\u4e24\u4e2a\u5411\u91cf\u5728\u6570\u5b66\u7a7a\u95f4\u91cc\u8ddd\u79bb\u975e\u5e38\u8fd1\u3002<strong>\u5411\u91cf\u6570\u636e\u5e93\u7684\u6838\u5fc3\u80fd\u529b\uff0c\u5c31\u662f\u7b97\u8ddd\u79bb<\/strong>\u3002\u5b83\u80fd\u5728\u6beb\u79d2\u7ea7\u7684\u65f6\u95f4\u5185\uff0c\u4ece\u51e0\u767e\u4e07\u4e2a\u5411\u91cf\u91cc\u627e\u5230\u8ddf\u7528\u6237\u95ee\u9898\u6700\u63a5\u8fd1\u7684\u90a3\u51e0\u4e2a\u3002<\/p>\n\n\n\n<p><strong>\u5173\u7cfb\u578b\u6570\u636e\u5e93\uff08MySQL\uff09\u5b58\u7684\u662f\u7cbe\u786e\u6570\u636e\uff0c\u5411\u91cf\u6570\u636e\u5e93\u5b58\u7684\u662f\u8bed\u4e49\u5173\u7cfb\u3002<\/strong> \u8981\u505a RAG\uff0c\u5411\u91cf\u6570\u636e\u5e93\u662f\u521a\u9700\u3002<\/p>\n\n\n\n<p>\u3000\u3000<\/p>\n\n\n\n<p><strong>\u4e8c\u3001\u4e0a\u624b\u4e09\u5251\u5ba2\uff1aFAISS\u3001Chroma\u3001Milvus<\/strong><\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<p>LangChain \u652f\u6301\u51e0\u5341\u79cd\u5411\u91cf\u5e93\uff0c\u4f46\u5bf9\u4e8e\u5927\u591a\u6570\u9879\u76ee\uff0c\u4f60\u53ea\u9700\u8981\u5173\u6ce8\u8fd9\u4e09\u4e2a\u4ee3\u8868\u6027\u7684\u9009\u624b\u3002\u5b83\u4eec\u5206\u522b\u4ee3\u8868\u4e86\u4e09\u79cd\u4e0d\u540c\u7684\u4ea7\u54c1\u5f62\u6001\u548c\u9002\u7528\u573a\u666f\u3002<\/p>\n\n\n\n<p><strong>\ud83d\udd391. FAISS\uff1a\u4e0d\u662f\u6570\u636e\u5e93\u7684\u6570\u636e\u5e93<\/strong><\/p>\n\n\n\n<p><strong>\u5b9a\u4f4d<\/strong>\uff1a\u8fd9\u662f\u4e00\u4e2a\u7531 Facebook \u5f00\u6e90\u7684\u7b97\u6cd5\u5e93\uff0c\u800c\u4e0d\u662f\u4e00\u4e2a\u72ec\u7acb\u7684\u670d\u52a1\u5668\u8f6f\u4ef6\u3002<\/p>\n\n\n\n<ul>\n<li><strong>\u7279\u70b9<\/strong>\uff1a\u5b83\u8f7b\u91cf\u3001\u6781\u5feb\uff0c\u901a\u5e38\u76f4\u63a5\u5d4c\u5165\u5728 Python \u4ee3\u7801\u91cc\u8fd0\u884c\u3002\u5b83\u6ca1\u6709\u72ec\u7acb\u7684\u8fdb\u7a0b\uff0c\u6570\u636e\u901a\u5e38\u5b58\u5728\u5185\u5b58\u91cc\uff08RAM\uff09\uff0c\u6216\u8005\u5b58\u6210\u672c\u5730\u6587\u4ef6\u3002<\/li>\n\n\n\n<li><strong>LangChain \u4e2d\u7684\u5730\u4f4d<\/strong>\uff1a\u5b83\u662f\u5f88\u591a\u5176\u4ed6\u5411\u91cf\u6570\u636e\u5e93\u7684\u5e95\u5c42\u5f15\u64ce\u3002<\/li>\n\n\n\n<li><strong>\u4f18\u70b9<\/strong>\uff1a\n<ul>\n<li>\u96f6\u90e8\u7f72\u6210\u672c\uff1a<code>pip install faiss-cpu<\/code> \u5c31\u80fd\u7528\uff0c\u4e0d\u9700\u8981\u5b89\u88c5 Docker\uff0c\u4e0d\u9700\u8981\u914d\u7f6e\u670d\u52a1\u5668\u3002<\/li>\n\n\n\n<li>\u901f\u5ea6\u6781\u5feb\uff1a\u5728\u767e\u4e07\u7ea7\u6570\u636e\u91cf\u4e0b\uff0c\u5b83\u7684\u641c\u7d22\u901f\u5ea6\u662f\u6beb\u79d2\u7ea7\u7684\u3002<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n\n\n\n<ul>\n<li><strong>\u7f3a\u70b9<\/strong>\uff1a\n<ul>\n<li>\u6613\u5931\u6027\uff1a\u5982\u679c\u4f60\u7684 Python \u7a0b\u5e8f\u6302\u4e86\uff0c\u5185\u5b58\u91cc\u7684\u6570\u636e\u5c31\u6ca1\u4e86\u3002\u867d\u7136\u53ef\u4ee5\u4fdd\u5b58\u6210\u6587\u4ef6\uff0c\u4f46\u4e0d\u652f\u6301\u5b9e\u65f6\u7684\u9ad8\u5e76\u53d1\u5199\u5165\u3002<\/li>\n\n\n\n<li>\u65e0\u6cd5\u6c34\u5e73\u6269\u5c55\uff1a\u4f60\u7684\u670d\u52a1\u5668\u5185\u5b58\u6709\u591a\u5927\uff0c\u5b83\u5c31\u80fd\u5b58\u591a\u5c11\u6570\u636e\u3002\u65e0\u6cd5\u50cf\u771f\u6b63\u7684\u6570\u636e\u5e93\u90a3\u6837\u641e\u96c6\u7fa4\u3002<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>\u9002\u7528\u573a\u666f<\/strong>\uff1a\n<ul>\n<li>\u672c\u5730 Demo \u6216 PoC\uff08\u6982\u5ff5\u9a8c\u8bc1\uff09\uff1a\u6bd4\u5982\u4f60\u5728\u81ea\u5df1\u7684\u7b14\u8bb0\u672c\u4e0a\u8dd1\u4e00\u4e2a\u6587\u6863\u95ee\u7b54\u673a\u5668\u4eba\u3002<\/li>\n\n\n\n<li>\u4e00\u6b21\u6027\u79bb\u7ebf\u4efb\u52a1\uff1a\u6bd4\u5982\u6bcf\u5929\u665a\u4e0a\u8dd1\u4e00\u6b21\u5168\u91cf\u6570\u636e\u7684\u805a\u7c7b\u5206\u6790\u3002<\/li>\n\n\n\n<li>\u8d85\u5c0f\u89c4\u6a21\u5e94\u7528\uff1a\u53ea\u6709\u51e0\u767e\u4e2a\u6587\u6863\uff0c\u4e0d\u9700\u8981\u6301\u4e45\u5316\u66f4\u65b0\u3002<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n\n\n\n<p>\u3000\u3000<\/p>\n\n\n\n<p><strong>\ud83d\udd392. Chroma\uff1aAI \u65f6\u4ee3\u7684 \u201cSQLite\u201d<\/strong><\/p>\n\n\n\n<p><strong>\u5b9a\u4f4d<\/strong>\uff1a\u4e00\u4e2a AI \u539f\u751f\u7684\u5f00\u6e90\u5411\u91cf\u6570\u636e\u5e93\uff0c\u4e3b\u6253\u6613\u7528\u6027\u548c\u5f00\u53d1\u8005\u4f53\u9a8c\u3002<\/p>\n\n\n\n<ul>\n<li><strong>\u7279\u70b9<\/strong>\uff1a\u5b83\u662f\u76ee\u524d LangChain \u751f\u6001\u4e2d\u6700\u53d7\u6b22\u8fce\u7684\u8f7b\u91cf\u7ea7\u6570\u636e\u5e93\u3002\u5b83\u53ef\u4ee5\u50cf FAISS \u4e00\u6837\u8fd0\u884c\u5728\u672c\u5730\uff08In-memory\uff09\uff0c\u4e5f\u53ef\u4ee5\u4f5c\u4e3a\u670d\u52a1\u7aef\u90e8\u7f72\u3002\u5b83\u6700\u5927\u7684\u5356\u70b9\u662f\u7b80\u5355\u3002<\/li>\n\n\n\n<li><strong>LangChain \u4e2d\u7684\u5730\u4f4d<\/strong>\uff1a\u5b98\u65b9\u6559\u7a0b\u548c\u5927\u91cf\u5f00\u6e90\u9879\u76ee\u7684\u9996\u9009\u9ed8\u8ba4\u914d\u7f6e\u3002<\/li>\n\n\n\n<li><strong>\u4f18\u70b9<\/strong>\uff1a\n<ul>\n<li>\u5f00\u7bb1\u5373\u7528\uff1a\u5b89\u88c5\u7b80\u5355\uff0cAPI \u8bbe\u8ba1\u975e\u5e38\u4eba\u6027\u5316\uff0c\u5b8c\u7f8e\u5951\u5408 Python \u5f00\u53d1\u8005\u7684\u4e60\u60ef\u3002<\/li>\n\n\n\n<li>\u529f\u80fd\u591f\u7528\uff1a\u652f\u6301\u5143\u6570\u636e\u8fc7\u6ee4\uff0c\u6bd4\u5982 \u201c\u53ea\u641c\u7d22 <code>category=finance<\/code> \u7684\u6587\u6863\u201d\uff0c\u8fd9\u70b9\u6bd4 FAISS \u5f3a\u3002<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n\n\n\n<ul>\n<li>\u6301\u4e45\u5316\uff1a\u5b83\u53ef\u4ee5\u628a\u6570\u636e\u5b58\u5728\u672c\u5730\u7684 SQLite \u6587\u4ef6\u91cc\uff0c\u7a0b\u5e8f\u91cd\u542f\u6570\u636e\u8fd8\u5728\u3002<\/li>\n\n\n\n<li><strong>\u7f3a\u70b9<\/strong>\uff1a\n<ul>\n<li>\u6027\u80fd\u74f6\u9888\uff1a\u5728\u6570\u636e\u91cf\u8fbe\u5230\u5343\u4e07\u7ea7\u65f6\uff0c\u6027\u80fd\u4e0d\u5982 Milvus \u7a33\u5b9a\u3002<\/li>\n\n\n\n<li>\u5206\u5e03\u5f0f\u80fd\u529b\u5f31\uff1a\u867d\u7136 Chroma \u6b63\u5728\u505a\u670d\u52a1\u7aef\u7248\u672c\uff0c\u4f46\u76ee\u524d\u4e3b\u8981\u8fd8\u662f\u5355\u673a\u4e3a\u4e3b\u3002<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>\u9002\u7528\u573a\u666f<\/strong>\uff1a\n<ul>\n<li>\u521d\u521b\u516c\u53f8\u7684 MVP\uff1a\u5feb\u901f\u4e0a\u7ebf\uff0c\u9a8c\u8bc1\u4e1a\u52a1\u3002<\/li>\n\n\n\n<li>\u4e2d\u5c0f\u578b\u5e94\u7528\uff1a\u6587\u6863\u6570\u91cf\u5728 10 \u4e07 &#8211; 100 \u4e07\u7ea7\u522b\u3002<\/li>\n\n\n\n<li>\u5185\u90e8\u5de5\u5177\uff1a\u7ed9\u516c\u53f8\u5185\u90e8\u7528\u7684\u77e5\u8bc6\u5e93\u5de5\u5177\u3002<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n\n\n\n<p>\u3000\u3000<\/p>\n\n\n\n<p><strong>\ud83d\udd393. Milvus\uff1a\u91cd\u88c5\u5766\u514b<\/strong><\/p>\n\n\n\n<p><strong>\u5b9a\u4f4d<\/strong>\uff1a\u4f01\u4e1a\u7ea7\u3001\u4e91\u539f\u751f\u3001\u5206\u5e03\u5f0f\u7684\u5411\u91cf\u6570\u636e\u5e93\u3002<\/p>\n\n\n\n<ul>\n<li><strong>\u7279\u70b9<\/strong>\uff1a\u7531 Zilliz \u516c\u53f8\u7ef4\u62a4\uff0c\u67b6\u6784\u975e\u5e38\u590d\u6742\uff0c\u57fa\u4e8e K8s\uff0c\u5b58\u7b97\u5206\u79bb\u3002\u5b83\u7684\u8bbe\u8ba1\u76ee\u6807\u5c31\u662f\u5927\u89c4\u6a21\u548c\u9ad8\u53ef\u9760\u3002<\/li>\n\n\n\n<li><strong>LangChain \u4e2d\u7684\u5730\u4f4d<\/strong>\uff1a\u751f\u4ea7\u73af\u5883\u3001\u7279\u522b\u662f\u5927\u5382\u548c\u91d1\u878d\u673a\u6784\u7684\u9996\u9009\u3002<\/li>\n\n\n\n<li><strong>\u4f18\u70b9<\/strong>\uff1a\n<ul>\n<li>\u6d77\u91cf\u5b58\u50a8\uff1a\u8f7b\u677e\u652f\u6301\u5341\u4ebf\u7ea7\u5411\u91cf\u3002\u4f60\u7684\u6570\u636e\u518d\u591a\u4e5f\u88c5\u5f97\u4e0b\u3002<\/li>\n\n\n\n<li>\u9ad8\u53ef\u7528\uff1a\u652f\u6301\u526f\u672c\u3001\u5206\u7247\u3001\u6545\u969c\u6062\u590d\u3002\u8fd9\u624d\u662f\u771f\u6b63\u7684 \u201c\u6570\u636e\u5e93\u201d\u3002<\/li>\n\n\n\n<li>\u9ad8\u6027\u80fd\uff1a\u5728\u6d77\u91cf\u6570\u636e\u4e0b\u4f9d\u7136\u80fd\u4fdd\u6301\u4f4e\u5ef6\u8fdf\u3002<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n\n\n\n<ul>\n<li><strong>\u7f3a\u70b9<\/strong>\uff1a\n<ul>\n<li>\u8fd0\u7ef4\u91cd\uff1a\u90e8\u7f72\u5b83\u9700\u8981 Docker\u3001K8s\u3001Etcd\u3001MinIO\u2026 \u8fd0\u7ef4\u4eba\u5458\u770b\u5230 docker-compose \u6587\u4ef6\u901a\u5e38\u4f1a\u76b1\u7709\u3002<\/li>\n\n\n\n<li>\u8d44\u6e90\u6d88\u8017\u5927\uff1a\u54ea\u6015\u6ca1\u6570\u636e\uff0c\u7a7a\u8dd1\u4e5f\u5360\u4e0d\u5c11\u5185\u5b58\u548c CPU\u3002<\/li>\n\n\n\n<li>\u5b66\u4e60\u66f2\u7ebf\u9661\u5ced\uff1a\u6982\u5ff5\u591a\uff08Collection, Partition, Segment\uff09\uff0c\u5f00\u53d1\u4e0a\u624b\u6162\u3002<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>\u9002\u7528\u573a\u666f<\/strong>\uff1a\n<ul>\n<li>\u4f01\u4e1a\u7ea7\u751f\u4ea7\u73af\u5883\uff1a\u7528\u6237\u91cf\u5927\uff0c\u5e76\u53d1\u9ad8\uff0c\u5bf9\u7a33\u5b9a\u6027\u8981\u6c42\u6781\u9ad8\u3002<\/li>\n\n\n\n<li>\u6d77\u91cf\u77e5\u8bc6\u5e93\uff1a\u6bd4\u5982\u8981\u628a\u5168\u7f51\u7684\u65b0\u95fb\u3001\u51e0\u5343\u4e07\u4efd\u6cd5\u5f8b\u6587\u4e66\u5b58\u8fdb\u53bb\u3002<\/li>\n\n\n\n<li>\u6df7\u5408\u68c0\u7d22\u9700\u6c42\uff1a\u9700\u8981\u7ed3\u5408\u590d\u6742\u7684\u6807\u91cf\u8fc7\u6ee4\u548c\u5411\u91cf\u641c\u7d22\u3002<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n\n\n\n<p>\u3000\u3000<\/p>\n\n\n\n<p><strong>\u4e09\u3001LangChain \u4ee3\u7801\u89c6\u89d2\uff1a\u5207\u6362\u6570\u636e\u5e93\u6709\u591a\u5bb9\u6613\uff1f<\/strong><\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<p>LangChain \u6700\u725b\u63b0\u7684\u5730\u65b9\u5728\u4e8e\u5b83\u5b9a\u4e49\u4e86\u4e00\u4e2a\u6807\u51c6\u63a5\u53e3\uff1a<code>VectorStore<\/code>\u3002\u8fd9\u610f\u5473\u7740\uff0c\u4f60\u53ef\u4ee5\u7528\u51e0\u4e4e\u540c\u6837\u7684\u4ee3\u7801\uff0c\u4ece Chroma \u5207\u6362\u5230 Milvus\u3002\u8fd9\u5bf9\u4ea7\u54c1\u8fed\u4ee3\u975e\u5e38\u53cb\u597d\u3002<\/p>\n\n\n\n<p>\u770b\u770b\u8fd9\u6bb5 Python \u4f2a\u4ee3\u7801\uff0c\u4f53\u4f1a\u4e00\u4e0b\u8fd9\u79cd \u201c\u65e0\u7f1d\u5207\u6362\u201d\uff1a<\/p>\n\n\n\n<p><strong>\u573a\u666f 1\uff1a\u5728\u5f00\u53d1\u9636\u6bb5\uff0c\u4f7f\u7528 Chroma<\/strong><\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">from langchain_openai import OpenAIEmbeddings\nfrom langchain_chroma import Chroma\nfrom langchain_text_splitters import CharacterTextSplitter\n\n# 1. \u51c6\u5907\u6570\u636e\nraw_documents = [...]  # \u5047\u8bbe\u8fd9\u662f\u4f60\u7684\u6587\u6863\u5217\u8868\ntext_splitter = CharacterTextSplitter(chunk_size=1000, chunk_overlap=0)\ndocs = text_splitter.split_documents(raw_documents)\n\n# 2. \u9009\u62e9 Embedding \u6a21\u578b\uff08\u8d1f\u8d23\u628a\u6587\u5b57\u53d8\u6210\u5411\u91cf\uff09\nembedding_model = OpenAIEmbeddings()\n\n# 3. \u521d\u59cb\u5316\u6570\u636e\u5e93\uff08Chroma\uff09\n# persist_directory \u6307\u5b9a\u6570\u636e\u5b58\u5728\u672c\u5730\u786c\u76d8\u7684\u54ea\u91cc\ndb = Chroma.from_documents(\n    documents=docs,\n    embedding=embedding_model,\n    persist_directory=\".\/local_chroma_db\"\n)\n\n# 4. \u641c\u7d22\nquery = \"\u5982\u4f55\u7533\u8bf7\u5e74\u5047\uff1f\"\nresult = db.similarity_search(query)\nprint(result[0].page_content)<\/pre>\n\n\n\n<p>\u3000\u3000<\/p>\n\n\n\n<p><strong>\u573a\u666f 2\uff1a\u4e0a\u7ebf\u751f\u4ea7\u73af\u5883\uff0c\u8fc1\u79fb\u5230 Milvus<\/strong><\/p>\n\n\n\n<p>\u5f53\u4f60\u7684\u6570\u636e\u91cf\u53d8\u5927\uff0c\u60f3\u6362\u6210 Milvus\uff0c\u53ea\u9700\u8981\u6539\u51e0\u884c\u4ee3\u7801\uff1a<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">from langchain_community.vectorstores import Milvus\n\n# \u524d\u9762\u7684\u6570\u636e\u5904\u7406\u903b\u8f91\u5b8c\u5168\u4e0d\u7528\u53d8...\n\n# 3. \u521d\u59cb\u5316\u6570\u636e\u5e93\uff08Milvus\uff09\n# \u8fd9\u91cc\u6307\u5411\u516c\u53f8\u90e8\u7f72\u597d\u7684 Milvus \u670d\u52a1\u5668\u5730\u5740\ndb = Milvus.from_documents(\n    documents=docs,\n    embedding=embedding_model,\n    connection_args={\"host\": \"192.168.1.100\", \"port\": \"19530\"},\n    collection_name=\"company_wiki\"\n)\n\n# 4. \u641c\u7d22\u903b\u8f91\u5b8c\u5168\u4e0d\u7528\u53d8\nresult = db.similarity_search(query)<\/pre>\n\n\n\n<p>\u4ea7\u54c1\u7ecf\u7406 Insight:<\/p>\n\n\n\n<p>\u56e0\u4e3a LangChain \u7684\u8fd9\u79cd\u5c01\u88c5\uff0c\u4f60\u53ef\u4ee5\u5728 PRD \u9636\u6bb5\u91c7\u53d6 \u201c\u5206\u9636\u6bb5\u6f14\u8fdb\u201d \u7684\u7b56\u7565\uff1a<\/p>\n\n\n\n<ul>\n<li><strong>\u7b2c\u4e00\u9636\u6bb5\uff08\u9a8c\u8bc1\u671f\uff09<\/strong>\uff1a\u5f3a\u5236\u8981\u6c42\u5f00\u53d1\u7528 Chroma\uff0c\u56e0\u4e3a\u5feb\uff0c\u4e00\u5468\u5c31\u80fd\u51fa Demo\u3002 <\/li>\n\n\n\n<li><strong>\u7b2c\u4e8c\u9636\u6bb5\uff08\u7070\u5ea6\u671f\uff09<\/strong>\uff1a\u5982\u679c\u6570\u636e\u91cf\u6da8\u5f97\u5feb\uff0c\u6216\u8005\u6027\u80fd\u4e0d\u591f\u4e86\uff0c\u518d\u5b89\u6392\u8d44\u6e90\u90e8\u7f72 Milvus\uff0c\u4ee3\u7801\u5c42\u9762\u7684\u6539\u9020\u6210\u672c\u6781\u4f4e\uff0c\u4e3b\u8981\u662f\u8fd0\u7ef4\u90e8\u7f72\u7684\u6210\u672c\u3002<\/li>\n<\/ul>\n\n\n\n<p>\u3000\u3000<\/p>\n\n\n\n<p><strong>\u56db\u3001\u9009\u578b\u51b3\u7b56\u77e9\u9635\uff1a\u4ea7\u54c1\u7ecf\u7406\u8be5\u600e\u4e48\u9009\uff1f<\/strong><\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<p>\u4e0d\u8981\u53ea\u542c\u67b6\u6784\u5e08\u8bf4\u54ea\u4e2a\u6280\u672f\u725b\uff0c\u8981\u7ed3\u5408\u4e1a\u52a1\u573a\u666f\u3002\u6211\u6574\u7406\u4e86\u4e00\u4e2a\u9009\u578b\u51b3\u7b56\u8868\uff0c\u5efa\u8bae\u6536\u85cf\u3002<\/p>\n\n\n\n<figure class=\"wp-block-table is-style-stripes\"><table><thead><tr><th><\/th><th>FAISS<\/th><th>Chroma<\/th><th>Milvus<\/th><\/tr><\/thead><tbody><tr><td>\u6570\u636e\u89c4\u6a21<\/td><td>&lt; 10 \u4e07\uff08\u5185\u5b58\u9650\u5236\uff09<\/td><td>10 \u4e07 &#8211; 500 \u4e07<\/td><td>&gt; 500 \u4e07\uff08\u65e0\u4e0a\u9650\uff09<\/td><\/tr><tr><td>\u6570\u636e\u6301\u4e45\u6027<\/td><td>\u4f4e\uff08\u4e3b\u8981\u7528\u4e8e\u4e34\u65f6\u8ba1\u7b97\uff09<\/td><td>\u4e2d\uff08\u672c\u5730\u6587\u4ef6\uff09<\/td><td>\u9ad8\uff08\u4f01\u4e1a\u7ea7\u5b58\u50a8\uff09<\/td><\/tr><tr><td>\u90e8\u7f72\u96be\u5ea6<\/td><td>\u6781\u4f4e (<code>pip install<\/code>)<\/td><td>\u4f4e\uff08pip \u6216\u5355\u5bb9\u5668\uff09<\/td><td>\u9ad8\uff08K8s \u96c6\u7fa4\uff09<\/td><\/tr><tr><td>\u8fd0\u7ef4\u6210\u672c<\/td><td>\u65e0<\/td><td>\u4f4e<\/td><td>\u9ad8\uff08\u9700\u8981\u4e13\u95e8 DBA\uff09<\/td><\/tr><tr><td>\u67e5\u8be2\u529f\u80fd<\/td><td>\u7eaf\u5411\u91cf\u641c\u7d22<\/td><td>\u652f\u6301\u5143\u6570\u636e\u8fc7\u6ee4<\/td><td>\u590d\u6742\u6df7\u5408\u68c0\u7d22<\/td><\/tr><tr><td>\u9002\u5408\u9636\u6bb5<\/td><td>Demo, \u4e2a\u4eba\u5de5\u5177\uff0c\u7b97\u6cd5\u9a8c\u8bc1<\/td><td>MVP, \u5185\u90e8\u7cfb\u7edf\uff0c\u4e2d\u578b\u5e94\u7528<\/td><td>\u6838\u5fc3\u4e1a\u52a1\u7cfb\u7edf\uff0c\u5927\u6570\u636e\u5e73\u53f0<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p>\u3000\u3000<\/p>\n\n\n\n<p>\u8fd8\u6709\u51e0\u4e2a\u5907\u9009\u9879\uff1a<\/p>\n\n\n\n<p>\u9664\u4e86\u8fd9\u4e09\u5bb6\uff0c\u4f60\u53ef\u80fd\u4f1a\u542c\u5230\uff1a<\/p>\n\n\n\n<ul>\n<li><strong>Pinecone<\/strong>\uff1a\u95ed\u6e90\u7684 SaaS \u670d\u52a1\u3002\u4f53\u9a8c\u6781\u597d\uff0c\u5b8c\u5168\u4e0d\u7528\u8fd0\u7ef4\uff0c\u4e5f\u662f LangChain \u7684\u4e00\u7ea7\u516c\u6c11\u3002\u4f46\u7f3a\u70b9\u662f\u8d35\uff0c\u800c\u4e14\u6570\u636e\u5728\u7f8e\u56fd\uff0c\u56fd\u5185\u4f01\u4e1a\u614e\u7528\u3002 <\/li>\n\n\n\n<li><strong>Elasticsearch (ES)<\/strong>\uff1a\u5f88\u591a\u516c\u53f8\u672c\u6765\u5c31\u5728\u7528 ES \u505a\u641c\u7d22\u3002\u65b0\u7248\u7684 ES \u4e5f\u652f\u6301\u5411\u91cf\u641c\u7d22\u4e86\u3002\u5982\u679c\u4f60\u4eec\u516c\u53f8\u8fd0\u7ef4\u4e0d\u60f3\u7ef4\u62a4\u4e00\u5957\u65b0\u7684\u6570\u636e\u5e93\uff0c\u76f4\u63a5\u7528 ES \u4e5f\u662f\u4e2a\u6298\u4e2d\u65b9\u6848\uff0c\u4f46\u5411\u91cf\u6027\u80fd\u4e0d\u5982\u4e13\u7528\u7684 Milvus\u3002 <\/li>\n\n\n\n<li><strong>PostgreSQL (pgvector)<\/strong>\uff1a\u5982\u679c\u4f60\u4eec\u7528 PG \u6570\u636e\u5e93\uff0c\u88c5\u4e2a <code>pgvector<\/code> \u63d2\u4ef6\u5c31\u80fd\u5b58\u5411\u91cf\u3002\u5bf9\u4e8e\u4e0d\u60f3\u5f15\u5165\u65b0\u67b6\u6784\u7684\u4e2d\u5c0f\u56e2\u961f\uff0c\u8fd9\u662f\u4e2a\u6781\u5177\u6027\u4ef7\u6bd4\u7684\u9009\u62e9\u3002<\/li>\n<\/ul>\n\n\n\n<p>\u3000\u3000<\/p>\n\n\n\n<p><strong>\u4e94\u3001\u907f\u5751\u6307\u5357\uff1a\u5411\u91cf\u6570\u636e\u5e93\u91cc\u7684 \u201c\u9690\u5f62\u6740\u624b\u201d<\/strong><\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<p>\u5728\u5b9e\u9645\u843d\u5730\u4e2d\uff0c\u6211\u89c1\u8fc7\u5f88\u591a\u4ea7\u54c1\u56e0\u4e3a\u5411\u91cf\u5e93\u6ca1\u7528\u597d\u800c\u7ffb\u8f66\u3002\u8fd9\u91cc\u6709 3 \u4e2a\u6700\u5e38\u89c1\u7684\u5927\u5751\u3002<\/p>\n\n\n\n<p><strong>\ud83d\udd391. \u7ef4\u5ea6\u4e0d\u5339\u914d<\/strong><\/p>\n\n\n\n<p><strong>\u73b0\u8c61<\/strong>\uff1a<\/p>\n\n\n\n<p>\u5f00\u53d1\u628a\u4ee3\u7801\u5199\u597d\u4e86\uff0c\u4e00\u8fd0\u884c\u5c31\u62a5\u9519\uff0c\u63d0\u793a\u7ef4\u5ea6\u9519\u8bef\u3002<\/p>\n\n\n\n<p>\u6216\u8005\u4e4b\u524d\u5b58\u7684\u6570\u636e\uff0c\u6362\u4e86\u4e2a\u6a21\u578b\u5c31\u641c\u4e0d\u51fa\u6765\u4e86\u3002<\/p>\n\n\n\n<p><strong>\u6839\u56e0<\/strong>\uff1a<\/p>\n\n\n\n<p>\u5411\u91cf\u5e93\u91cc\u7684 \u201c\u5751\u4f4d\u201d \u5927\u5c0f\u662f\u56fa\u5b9a\u7684\u3002<\/p>\n\n\n\n<ul>\n<li>OpenAI <code>text-embedding-3-small<\/code> \u4ea7\u751f\u7684\u5411\u91cf\u957f\u5ea6\u662f 1536\u3002<\/li>\n\n\n\n<li>\u5176\u4ed6\u6a21\u578b\u53ef\u80fd\u662f 768\u30011024 \u7b49\uff0c\u4e00\u65e6\u5efa\u5e93\u65f6\u6307\u5b9a\u4e86\u7ef4\u5ea6\uff0c\u5c31\u4e0d\u80fd\u968f\u4fbf\u6362\u6a21\u578b\u3002<\/li>\n\n\n\n<li>HuggingFace \u4e0a\u5f88\u591a\u5f00\u6e90\u6a21\u578b\u957f\u5ea6\u662f 768 \u751a\u81f3 1024\u3002<\/li>\n<\/ul>\n\n\n\n<p><strong>\u89e3\u51b3\u65b9\u6848<\/strong>\uff1a<\/p>\n\n\n\n<p>\u5728\u7acb\u9879\u4e4b\u521d\uff0c\u5fc5\u987b\u9501\u6b7b Embedding \u6a21\u578b\u3002<\/p>\n\n\n\n<p>\u5982\u679c\u4f60\u4e2d\u9014\u60f3\u4ece OpenAI \u6362\u5230\u56fd\u5185\u7684\u901a\u4e49\u5343\u95ee Embedding\uff0c\u5bf9\u4e0d\u8d77\uff0c\u6570\u636e\u5e93\u91cc\u7684\u6240\u6709\u5411\u91cf\u5fc5\u987b\u5168\u90e8\u91cd\u65b0\u751f\u6210\uff08Re-indexing\uff09\u3002\u8fd9\u4e0d\u4ec5\u8d39\u65f6\u95f4\uff0c\u8fd8\u8d39\u94b1\u3002<\/p>\n\n\n\n<p>\u4ea7\u54c1\u7ecf\u7406\u8981\u5728 PRD \u91cc\u660e\u786e\uff1a<strong>Embedding \u6a21\u578b\u53d8\u66f4\u662f\u4e00\u6b21\u91cd\u5927\u91cd\u6784<\/strong>\u3002<\/p>\n\n\n\n<p>\u3000\u3000<\/p>\n\n\n\n<p><strong>\ud83d\udd392. \u5143\u6570\u636e\u8fc7\u6ee4\u7684\u6027\u80fd\u9677\u9631<\/strong><\/p>\n\n\n\n<p><strong>\u73b0\u8c61<\/strong>\uff1a<\/p>\n\n\n\n<p>\u4f60\u60f3\u505a\u4e00\u4e2a\u6587\u6863\u5e93\uff0c\u652f\u6301\u6309 \u201c\u5e74\u4efd\u201d \u7b5b\u9009\u3002<\/p>\n\n\n\n<p>\u7528\u6237\u641c \u201c2023 \u5e74\u7684\u8d22\u52a1\u62a5\u544a\u201d\u3002<\/p>\n\n\n\n<p>\u903b\u8f91\u662f\uff1a\u5148\u641c\u51fa\u6240\u6709\u5173\u4e8e \u201c\u8d22\u52a1\u62a5\u544a\u201d \u7684\u5411\u91cf\uff0c\u7136\u540e\u518d\u5254\u9664\u4e0d\u662f 2023 \u5e74\u7684\u3002<\/p>\n\n\n\n<p>\u5728\u6570\u636e\u91cf\u5927\u65f6\uff0c\u8fd9\u79cd \u201c\u540e\u8fc7\u6ee4\u201d \u4f1a\u8ba9\u67e5\u8be2\u53d8\u5f97\u6781\u6162\uff0c\u6216\u8005\u53ec\u56de\u7387\u6781\u4f4e\uff08\u56e0\u4e3a\u524d 100 \u4e2a\u7ed3\u679c\u53ef\u80fd\u90fd\u662f 2022 \u5e74\u7684\uff0c\u88ab\u8fc7\u6ee4\u5b8c\u5c31\u6ca1\u4e1c\u897f\u4e86\uff09\u3002<\/p>\n\n\n\n<p><strong>\u89e3\u51b3\u65b9\u6848<\/strong>\uff1a<\/p>\n\n\n\n<p>\u9009\u62e9\u652f\u6301 ** \u9884\u8fc7\u6ee4\uff08Pre-filtering\uff09** \u7684\u6570\u636e\u5e93\uff08Chroma \u548c Milvus \u90fd\u652f\u6301\uff0c\u4f46\u673a\u5236\u4e0d\u540c\uff09\u3002<\/p>\n\n\n\n<p>\u5728\u641c\u7d22\u5411\u91cf\u4e4b\u524d\uff0c\u5148\u901a\u8fc7\u5143\u6570\u636e\u7d22\u5f15\u628a\u8303\u56f4\u7f29\u5c0f\u5230 2023 \u5e74\u7684\u6570\u636e\u96c6\uff0c\u518d\u5728\u91cc\u9762\u505a\u5411\u91cf\u641c\u7d22\u3002<\/p>\n\n\n\n<p>\u4ea7\u54c1\u7ecf\u7406\u9700\u8981\u786e\u8ba4\uff1a\u4f60\u7684\u4e1a\u52a1\u573a\u666f\u4e2d\uff0c\u8fc7\u6ee4\u6761\u4ef6\uff08Filter\uff09\u662f\u4e0d\u662f\u9ad8\u9891\u64cd\u4f5c\uff1f\u5982\u679c\u662f\uff0c\u4e00\u5b9a\u8981\u9009\u5bf9\u6570\u636e\u5e93\u3002<\/p>\n\n\n\n<p>\u3000\u3000<\/p>\n\n\n\n<p><strong>\ud83d\udd393. \u51b7\u542f\u52a8\u4e0e\u7d22\u5f15\u6784\u5efa\u65f6\u95f4<\/strong><\/p>\n\n\n\n<p><strong>\u73b0\u8c61<\/strong>\uff1a<\/p>\n\n\n\n<p>\u4f60\u7684\u5e94\u7528\u4e0a\u7ebf\u4e86\uff0c\u4f60\u8981\u628a\u516c\u53f8 100 \u4e07\u4efd PDF \u5bfc\u8fdb\u53bb\u3002<\/p>\n\n\n\n<p>\u4f60\u4ee5\u4e3a\u4e00\u5c0f\u65f6\u641e\u5b9a\uff0c\u7ed3\u679c\u8dd1\u4e86\u4e09\u5929\u4e09\u591c\u3002<\/p>\n\n\n\n<p><strong>\u6839\u56e0<\/strong>\uff1a<\/p>\n\n\n\n<p>\u5411\u91cf\u7684\u5199\u5165\u4e0d\u4ec5\u4ec5\u662f\u5b58\u8fdb\u53bb\uff0c\u8fd8\u8981\u6784\u5efa\u7d22\u5f15\uff08HNSW, IVFFlat \u7b49\uff09\u3002\u8fd9\u662f\u4e00\u4e2a\u6781\u8017 CPU \u7684\u8ba1\u7b97\u8fc7\u7a0b\u3002<\/p>\n\n\n\n<p>\u800c\u4e14\uff0c\u8c03\u7528 Embedding API \u4e5f\u662f\u6709\u901f\u7387\u9650\u5236\u7684\u3002<\/p>\n\n\n\n<p><strong>\u89e3\u51b3\u65b9\u6848<\/strong>\uff1a<\/p>\n\n\n\n<ul>\n<li>\u5f02\u6b65\u5904\u7406\uff1a\u4e0a\u4f20\u6587\u6863\u540e\uff0c\u544a\u8bc9\u7528\u6237 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\u4e0a\u4e00\u7bc7\u7b14\u8bb0\u6211\u4eec\u804a\u4e86 LangChain \u5728\u751f\u4ea7\u73af\u5883\u7684\u5751\uff0c\u5176\u4e2d\u6700\u5927\u7684\u4e00\u4e2a\u5751\u5c31 [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[48],"tags":[],"_links":{"self":[{"href":"https:\/\/92it.top\/index.php?rest_route=\/wp\/v2\/posts\/20353"}],"collection":[{"href":"https:\/\/92it.top\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/92it.top\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/92it.top\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/92it.top\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=20353"}],"version-history":[{"count":2,"href":"https:\/\/92it.top\/index.php?rest_route=\/wp\/v2\/posts\/20353\/revisions"}],"predecessor-version":[{"id":20355,"href":"https:\/\/92it.top\/index.php?rest_route=\/wp\/v2\/posts\/20353\/revisions\/20355"}],"wp:attachment":[{"href":"https:\/\/92it.top\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=20353"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/92it.top\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=20353"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/92it.top\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=20353"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}