{"id":1207,"date":"2024-04-26T11:35:59","date_gmt":"2024-04-26T11:35:59","guid":{"rendered":"https:\/\/www.nicekj.com\/?p=1207"},"modified":"2024-04-26T11:36:28","modified_gmt":"2024-04-26T11:36:28","slug":"balangchainpaoqilaide3gefangfajingdongyunjishutuandui","status":"publish","type":"post","link":"https:\/\/www.nicekj.com\/balangchainpaoqilaide3gefangfajingdongyunjishutuandui.html","title":{"rendered":"\u628aLangChain\u8dd1\u8d77\u6765\u76843\u4e2a\u65b9\u6cd5 | \u4eac\u4e1c\u4e91\u6280\u672f\u56e2\u961f"},"content":{"rendered":"<p>\u4f7f\u7528LangChain\u5f00\u53d1LLM\u5e94\u7528\u65f6\uff0c\u9700\u8981\u673a\u5668\u8fdb\u884cGLM\u90e8\u7f72\uff0c\u597d\u591a\u540c\u5b66\u7b2c\u4e00\u6b65\u5c31\u88ab\u529d\u9000\u4e86\uff0c\u90a3\u4e48\u5982\u4f55\u7ed5\u8fc7\u8fd9\u4e2a\u6b65\u9aa4\u5148\u5b66\u4e60LLM\u6a21\u578b\u7684\u5e94\u7528\uff0c\u5bf9Langchain\u8fdb\u884c\u5feb\u901f\u4e0a\u624b\uff1f\u672c\u7247\u8bb2\u89e33\u4e2a\u628aLangChain\u8dd1\u8d77\u6765\u7684\u65b9\u6cd5\uff0c\u5982\u6709\u9519\u8bef\u6b22\u8fce\u7ea0\u6b63\u3002<\/p>\n<p>Langchain\u5b98\u65b9\u6587\u6863\u5730\u5740\uff1a\n<a href=\"https:\/\/link.juejin.cn?target=https%3A%2F%2Fpython.langchain.com%2F\" target=\"_blank\" title=\"https:\/\/python.langchain.com\/\" ref=\"nofollow noopener noreferrer\" rel=\"noopener\">python.langchain.com\/<\/a><\/p>\n<h2 data-id=\"heading-0\">\u57fa\u7840\u529f\u80fd<\/h2>\n<p>LLM \u8c03\u7528<\/p>\n<ul>\n<li>\u652f\u6301\u591a\u79cd\u6a21\u578b\u63a5\u53e3\uff0c\u6bd4\u5982 OpenAI\u3001HuggingFace\u3001AzureOpenAI \u2026<\/li>\n<li>Fake LLM\uff0c\u7528\u4e8e\u6d4b\u8bd5<\/li>\n<li>\u7f13\u5b58\u7684\u652f\u6301\uff0c\u6bd4\u5982 in-mem\uff08\u5185\u5b58\uff09\u3001SQLite\u3001Redis\u3001SQL<\/li>\n<li>\u7528\u91cf\u8bb0\u5f55<\/li>\n<li>\u652f\u6301\u6d41\u6a21\u5f0f\uff08\u5c31\u662f\u4e00\u4e2a\u5b57\u4e00\u4e2a\u5b57\u7684\u8fd4\u56de\uff0c\u7c7b\u4f3c\u6253\u5b57\u6548\u679c\uff09<\/li>\n<\/ul>\n<p>Prompt\u7ba1\u7406\uff0c\u652f\u6301\u5404\u79cd\u81ea\u5b9a\u4e49\u6a21\u677f<\/p>\n<p>\u62e5\u6709\u5927\u91cf\u7684\u6587\u6863\u52a0\u8f7d\u5668\uff0c\u6bd4\u5982 Email\u3001Markdown\u3001PDF\u3001Youtube \u2026<\/p>\n<p>\u5bf9\u7d22\u5f15\u7684\u652f\u6301<\/p>\n<ul>\n<li>\u6587\u6863\u5206\u5272\u5668<\/li>\n<li>\u5411\u91cf\u5316<\/li>\n<li>\u5bf9\u63a5\u5411\u91cf\u5b58\u50a8\u4e0e\u641c\u7d22\uff0c\u6bd4\u5982 Chroma\u3001Pinecone\u3001Qdrand<\/li>\n<\/ul>\n<p>Chains<\/p>\n<ul>\n<li>LLMChain<\/li>\n<li>\u5404\u79cd\u5de5\u5177Chain<\/li>\n<li>LangChainHub<\/li>\n<\/ul>\n<p>\u8be6\u7ec6\u5730\u5740\u53ef\u53c2\u8003\uff1a<br>\n<a href=\"https:\/\/link.juejin.cn?target=https%3A%2F%2Fwww.langchain.cn%2Ft%2Ftopic%2F35\" target=\"_blank\" title=\"https:\/\/www.langchain.cn\/t\/topic\/35\" ref=\"nofollow noopener noreferrer\" rel=\"noopener\">www.langchain.cn\/t\/topic\/35<\/a><\/p>\n<h2 data-id=\"heading-1\"><strong>\u6d4b\u8bd5Langchain\u5de5\u7a0b\u76843\u4e2a\u65b9\u6cd5\uff1a<\/strong><\/h2>\n<p><strong>1 \u4f7f\u7528Langchian\u63d0\u4f9b\u7684FakeListLLM<\/strong><\/p>\n<p>\u4e3a\u4e86\u8282\u7ea6\u65f6\u95f4,\u76f4\u63a5\u4e0a\u4ee3\u7801<\/p>\n<p>\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" src=\"https:\/\/www.nicekj.com\/wp-content\/uploads\/replace\/9f39ea5bbed77f49fd35ff456c3f6a57.png\" alt=\"\u628aLangChain\u8dd1\u8d77\u6765\u76843\u4e2a\u65b9\u6cd5 | \u4eac\u4e1c\u4e91\u6280\u672f\u56e2\u961f\" \/><\/figure>\n<\/p>\n<pre><\/div><div class=\"code-block-extension-headerRight\"><span class=\"code-block-extension-lang\">javascript<\/span><div class=\"code-block-extension-copyCodeBtn\">\u590d\u5236\u4ee3\u7801<\/div><\/div><\/div><code class=\"hljs language-javascript code-block-extension-codeShowNum\" lang=\"javascript\"><span class=\"code-block-extension-codeLine\" data-line-num=\"1\"><span class=\"hljs-keyword\">import<\/span> os<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"2\"><span class=\"hljs-keyword\">from<\/span> decouple <span class=\"hljs-keyword\">import<\/span> config<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"3\"><span class=\"hljs-keyword\">from<\/span> langchain.<span class=\"hljs-property\">agents<\/span> <span class=\"hljs-keyword\">import<\/span> initialize_agent<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"4\"><span class=\"hljs-keyword\">from<\/span> langchain.<span class=\"hljs-property\">agents<\/span> <span class=\"hljs-keyword\">import<\/span> <span class=\"hljs-title class_\">AgentType<\/span><\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"5\"><span class=\"hljs-keyword\">from<\/span> langchain.<span class=\"hljs-property\">agents<\/span> <span class=\"hljs-keyword\">import<\/span> load_tools<\/span>\n<\/code><\/pre>\n<p>\u8fd9\u91ccmock\u4e0bChatGPT,\u4f7f\u7528mockLLm<\/p>\n<pre><\/div><div class=\"code-block-extension-headerRight\"><span class=\"code-block-extension-lang\">javascript<\/span><div class=\"code-block-extension-copyCodeBtn\">\u590d\u5236\u4ee3\u7801<\/div><\/div><\/div><code class=\"hljs language-javascript code-block-extension-codeShowNum\" lang=\"javascript\"><span class=\"code-block-extension-codeLine\" data-line-num=\"1\">#<span class=\"hljs-keyword\">from<\/span> langchain.<span class=\"hljs-property\">llms<\/span> <span class=\"hljs-keyword\">import<\/span> <span class=\"hljs-title class_\">OpenAI<\/span><\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"2\"><span class=\"hljs-keyword\">from<\/span> langchain.<span class=\"hljs-property\">llms<\/span>.<span class=\"hljs-property\">fake<\/span> <span class=\"hljs-keyword\">import<\/span> <span class=\"hljs-title class_\">FakeListLLM<\/span><\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"3\">os.<span class=\"hljs-property\">environ<\/span>[<span class=\"hljs-string\">\"OPENAI_API_KEY\"<\/span>] = <span class=\"hljs-title function_\">config<\/span>(<span class=\"hljs-string\">'OPENAI_API_KEY'<\/span>)<\/span>\n<\/code><\/pre>\n<p>REPL \u662f \u201cRead\u2013Eval\u2013Print Loop\u201d\uff08\u8bfb\u53d6-\u6c42\u503c-\u6253\u5370-\u5faa\u73af\uff09\u7684\u7f29\u5199\uff0c\u5b83\u662f\u4e00\u79cd\u7b80\u5355\u7684\u3001\u4ea4\u4e92\u5f0f\u7684\u7f16\u7a0b\u73af\u5883\u3002<\/p>\n<p>\u5728 REPL \u73af\u5883\u4e2d\uff0c\u7528\u6237\u53ef\u4ee5\u8f93\u5165\u4e00\u6761\u6216\u591a\u6761\u7f16\u7a0b\u8bed\u53e5\uff0c\u7cfb\u7edf\u4f1a\u7acb\u5373\u6267\u884c\u8fd9\u4e9b\u8bed\u53e5\u5e76\u8f93\u51fa\u7ed3\u679c\u3002\u8fd9\u79cd\u65b9\u5f0f\u975e\u5e38\u9002\u5408\u8fdb\u884c\u5feb\u901f\u7684\u4ee3\u7801\u8bd5\u9a8c\u548c\u8c03\u8bd5\u3002<\/p>\n<pre><\/div><div class=\"code-block-extension-headerRight\"><span class=\"code-block-extension-lang\">ini<\/span><div class=\"code-block-extension-copyCodeBtn\">\u590d\u5236\u4ee3\u7801<\/div><\/div><\/div><code class=\"hljs language-ini code-block-extension-codeShowNum\" lang=\"ini\"><span class=\"code-block-extension-codeLine\" data-line-num=\"1\"><span class=\"hljs-attr\">tools<\/span> = load_tools([<span class=\"hljs-string\">\"python_repl\"<\/span>])<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"2\"><span class=\"hljs-attr\">responses<\/span>=[<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"3\">    <span class=\"hljs-string\">\"Action: Python REPLnAction Input: chatGpt\u539f\u7406\"<\/span>,<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"4\">    <span class=\"hljs-string\">\"Final Answer: mock\u7b54\u6848\"<\/span><\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"5\">]<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"6\"><span class=\"hljs-attr\">llm<\/span> = FakeListLLM(responses=responses)<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"7\"><span class=\"hljs-attr\">agent<\/span> = initialize_agent(tools, llm, agent=AgentType.ZERO_SHOT_REACT_DESCRIPTION, verbose=<span class=\"hljs-literal\">True<\/span>)<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"8\">agent.run(\"chatGpt\u539f\u74062\")<\/span>\n<\/code><\/pre>\n<p><strong>2 \u4f7f\u7528Langchian\u63d0\u4f9b\u7684HumanInputLLM\uff0c\u8bbf\u95ee\u7ef4\u57fa\u767e\u79d1\u67e5\u8be2<\/strong><\/p>\n<p>\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" src=\"https:\/\/www.nicekj.com\/wp-content\/uploads\/replace\/686bd192a05c9c89acd52df758aa9ba2.png\" alt=\"\u628aLangChain\u8dd1\u8d77\u6765\u76843\u4e2a\u65b9\u6cd5 | \u4eac\u4e1c\u4e91\u6280\u672f\u56e2\u961f\" \/><\/figure>\n<\/p>\n<pre><\/div><div class=\"code-block-extension-headerRight\"><span class=\"code-block-extension-lang\">javascript<\/span><div class=\"code-block-extension-copyCodeBtn\">\u590d\u5236\u4ee3\u7801<\/div><\/div><\/div><code class=\"hljs language-javascript code-block-extension-codeShowNum\" lang=\"javascript\"><span class=\"code-block-extension-codeLine\" data-line-num=\"1\"><span class=\"hljs-keyword\">from<\/span> langchain.<span class=\"hljs-property\">llms<\/span>.<span class=\"hljs-property\">human<\/span> <span class=\"hljs-keyword\">import<\/span> <span class=\"hljs-title class_\">HumanInputLLM<\/span><\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"2\"><span class=\"hljs-keyword\">from<\/span> langchain.<span class=\"hljs-property\">agents<\/span> <span class=\"hljs-keyword\">import<\/span> load_tools<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"3\"><span class=\"hljs-keyword\">from<\/span> langchain.<span class=\"hljs-property\">agents<\/span> <span class=\"hljs-keyword\">import<\/span> initialize_agent<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"4\"><span class=\"hljs-keyword\">from<\/span> langchain.<span class=\"hljs-property\">agents<\/span> <span class=\"hljs-keyword\">import<\/span> <span class=\"hljs-title class_\">AgentType<\/span><\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"5\"><span class=\"hljs-keyword\">from<\/span> wikipedia <span class=\"hljs-keyword\">import<\/span> set_lang<\/span>\n<\/code><\/pre>\n<p>\u4f7f\u7528\u7ef4\u57fa\u767e\u79d1\u5de5\u5177<\/p>\n<pre><\/div><div class=\"code-block-extension-headerRight\"><span class=\"code-block-extension-lang\">ini<\/span><div class=\"code-block-extension-copyCodeBtn\">\u590d\u5236\u4ee3\u7801<\/div><\/div><\/div><code class=\"hljs language-ini code-block-extension-codeShowNum\" lang=\"ini\"><span class=\"code-block-extension-codeLine\" data-line-num=\"1\"><span class=\"hljs-attr\">tools<\/span> = load_tools([<span class=\"hljs-string\">\"wikipedia\"<\/span>])<\/span>\n<\/code><\/pre>\n<p>\u8fd9\u91cc\u5fc5\u987b\u8981\u8bbe\u7f6e\u4e3a\u4e2d\u6587url\u524d\u7f00\uff0c\u4e0d\u7136\u8bbf\u95ee\u4e0d\u4e86<\/p>\n<pre><\/div><div class=\"code-block-extension-headerRight\"><span class=\"code-block-extension-lang\">scss<\/span><div class=\"code-block-extension-copyCodeBtn\">\u590d\u5236\u4ee3\u7801<\/div><\/div><\/div><code class=\"hljs language-scss code-block-extension-codeShowNum\" lang=\"scss\"><span class=\"code-block-extension-codeLine\" data-line-num=\"1\"><span class=\"hljs-built_in\">set_lang<\/span>(\"zh\")<\/span>\n<\/code><\/pre>\n<p>\u521d\u59cb\u5316LLM<\/p>\n<pre><\/div><div class=\"code-block-extension-headerRight\"><span class=\"code-block-extension-lang\">swift<\/span><div class=\"code-block-extension-copyCodeBtn\">\u590d\u5236\u4ee3\u7801<\/div><\/div><\/div><code class=\"hljs language-swift code-block-extension-codeShowNum\" lang=\"swift\"><span class=\"code-block-extension-codeLine\" data-line-num=\"1\">llm <span class=\"hljs-operator\">=<\/span> <span class=\"hljs-type\">HumanInputLLM<\/span>(prompt_func<span class=\"hljs-operator\">=<\/span>lambda prompt: <span class=\"hljs-built_in\">print<\/span>(f<span class=\"hljs-string\">\"<span class=\"hljs-subst\">n<\/span>===PROMPT====<span class=\"hljs-subst\">n<\/span>{prompt}<span class=\"hljs-subst\">n<\/span>=====END OF PROMPT======\"<\/span>))<\/span>\n<\/code><\/pre>\n<p>\u521d\u59cb\u5316agent<\/p>\n<pre><\/div><div class=\"code-block-extension-headerRight\"><span class=\"code-block-extension-lang\">ini<\/span><div class=\"code-block-extension-copyCodeBtn\">\u590d\u5236\u4ee3\u7801<\/div><\/div><\/div><code class=\"hljs language-ini code-block-extension-codeShowNum\" lang=\"ini\"><span class=\"code-block-extension-codeLine\" data-line-num=\"1\"><span class=\"hljs-attr\">agent<\/span> = initialize_agent(tools, llm, agent=AgentType.ZERO_SHOT_REACT_DESCRIPTION, verbose=<span class=\"hljs-literal\">True<\/span>)<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"2\">agent.run(\"\u559c\u7f8a\u7f8a\")<\/span>\n<\/code><\/pre>\n<p>3&nbsp;<strong>\u4f7f\u7528huggingface<\/strong><\/p>\n<p><a href=\"https:\/\/link.juejin.cn?target=https%3A%2F%2Fhuggingface.co%2Fdocs\" target=\"_blank\" title=\"https:\/\/huggingface.co\/docs\" ref=\"nofollow noopener noreferrer\" rel=\"noopener\">huggingface.co\/docs<\/a><\/p>\n<p>1.\u6ce8\u518c\u8d26\u53f7<\/p>\n<p>2.\u521b\u5efaAccess Tokens<\/p>\n<p>\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" src=\"https:\/\/www.nicekj.com\/wp-content\/uploads\/replace\/ed789e60cf5886e4d34d524b775da695.png\" alt=\"\u628aLangChain\u8dd1\u8d77\u6765\u76843\u4e2a\u65b9\u6cd5 | \u4eac\u4e1c\u4e91\u6280\u672f\u56e2\u961f\" \/><\/figure>\n<\/p>\n<p>Demo\uff1a \u4f7f\u7528\u6a21\u578b\u5bf9\u6587\u6863\u8fdb\u884c\u6458\u8981<\/p>\n<p>\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" src=\"https:\/\/www.nicekj.com\/wp-content\/uploads\/replace\/75935ee3c929ab34e753532408d46c1c.png\" alt=\"\u628aLangChain\u8dd1\u8d77\u6765\u76843\u4e2a\u65b9\u6cd5 | \u4eac\u4e1c\u4e91\u6280\u672f\u56e2\u961f\" \/><\/figure>\n<\/p>\n<pre><\/div><div class=\"code-block-extension-headerRight\"><span class=\"code-block-extension-lang\">javascript<\/span><div class=\"code-block-extension-copyCodeBtn\">\u590d\u5236\u4ee3\u7801<\/div><\/div><\/div><code class=\"hljs language-javascript code-block-extension-codeShowNum\" lang=\"javascript\"><span class=\"code-block-extension-codeLine\" data-line-num=\"1\"><span class=\"hljs-keyword\">from<\/span> langchain.<span class=\"hljs-property\">document_loaders<\/span> <span class=\"hljs-keyword\">import<\/span> <span class=\"hljs-title class_\">UnstructuredFileLoader<\/span><\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"2\"><span class=\"hljs-keyword\">from<\/span> langchain.<span class=\"hljs-property\">chains<\/span>.<span class=\"hljs-property\">summarize<\/span> <span class=\"hljs-keyword\">import<\/span> load_summarize_chain<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"3\"><span class=\"hljs-keyword\">from<\/span> langchain.<span class=\"hljs-property\">text_splitter<\/span> <span class=\"hljs-keyword\">import<\/span> <span class=\"hljs-title class_\">RecursiveCharacterTextSplitter<\/span><\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"4\"><span class=\"hljs-keyword\">from<\/span> langchain <span class=\"hljs-keyword\">import<\/span> <span class=\"hljs-title class_\">HuggingFaceHub<\/span><\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"5\"><span class=\"hljs-keyword\">import<\/span> os<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"6\"><span class=\"hljs-keyword\">from<\/span> decouple <span class=\"hljs-keyword\">import<\/span> config<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"7\"><\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"8\"><span class=\"hljs-keyword\">from<\/span> langchain.<span class=\"hljs-property\">agents<\/span> <span class=\"hljs-keyword\">import<\/span> load_tools<\/span>\n<\/code><\/pre>\n<p>\u8fd9\u91ccmock\u4e0bChatGPT,\u4f7f\u7528HUGGINGFACEHUB<\/p>\n<pre><\/div><div class=\"code-block-extension-headerRight\"><span class=\"code-block-extension-lang\">lua<\/span><div class=\"code-block-extension-copyCodeBtn\">\u590d\u5236\u4ee3\u7801<\/div><\/div><\/div><code class=\"hljs language-lua code-block-extension-codeShowNum\" lang=\"lua\"><span class=\"code-block-extension-codeLine\" data-line-num=\"1\"><span class=\"hljs-built_in\">os<\/span>.environ[<span class=\"hljs-string\">\"HUGGINGFACEHUB_API_TOKEN\"<\/span>] = <span class=\"hljs-built_in\">config<\/span>(<span class=\"hljs-string\">'HUGGINGFACEHUB_API_TOKEN'<\/span>)<\/span>\n<\/code><\/pre>\n<p>\u5bfc\u5165\u6587\u672c<\/p>\n<pre><\/div><div class=\"code-block-extension-headerRight\"><span class=\"code-block-extension-lang\">ini<\/span><div class=\"code-block-extension-copyCodeBtn\">\u590d\u5236\u4ee3\u7801<\/div><\/div><\/div><code class=\"hljs language-ini code-block-extension-codeShowNum\" lang=\"ini\"><span class=\"code-block-extension-codeLine\" data-line-num=\"1\"><span class=\"hljs-attr\">loader<\/span> = UnstructuredFileLoader(<span class=\"hljs-string\">\"docment_storehelloLangChain.txt\"<\/span>)<\/span>\n<\/code><\/pre>\n<p>\u5c06\u6587\u672c\u8f6c\u6210 Document \u5bf9\u8c61<\/p>\n<pre><\/div><div class=\"code-block-extension-headerRight\"><span class=\"code-block-extension-lang\">python<\/span><div class=\"code-block-extension-copyCodeBtn\">\u590d\u5236\u4ee3\u7801<\/div><\/div><\/div><code class=\"hljs language-python code-block-extension-codeShowNum\" lang=\"python\"><span class=\"code-block-extension-codeLine\" data-line-num=\"1\">document = loader.load()<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"2\"><span class=\"hljs-built_in\">print<\/span>(<span class=\"hljs-string\">f'documents:<span class=\"hljs-subst\">{<span class=\"hljs-built_in\">len<\/span>(document)}<\/span>'<\/span>)<\/span>\n<\/code><\/pre>\n<p>\u521d\u59cb\u5316\u6587\u672c\u5206\u5272\u5668<\/p>\n<pre><\/div><div class=\"code-block-extension-headerRight\"><span class=\"code-block-extension-lang\">ini<\/span><div class=\"code-block-extension-copyCodeBtn\">\u590d\u5236\u4ee3\u7801<\/div><\/div><\/div><code class=\"hljs language-ini code-block-extension-codeShowNum\" lang=\"ini\"><span class=\"code-block-extension-codeLine\" data-line-num=\"1\"><span class=\"hljs-attr\">text_splitter<\/span> = RecursiveCharacterTextSplitter(<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"2\">    <span class=\"hljs-attr\">chunk_size<\/span> = <span class=\"hljs-number\">500<\/span>,<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"3\">    <span class=\"hljs-attr\">chunk_overlap<\/span> = <span class=\"hljs-number\">0<\/span><\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"4\">)<\/span>\n<\/code><\/pre>\n<p>\u5207\u5206\u6587\u672c<\/p>\n<pre><\/div><div class=\"code-block-extension-headerRight\"><span class=\"code-block-extension-lang\">python<\/span><div class=\"code-block-extension-copyCodeBtn\">\u590d\u5236\u4ee3\u7801<\/div><\/div><\/div><code class=\"hljs language-python code-block-extension-codeShowNum\" lang=\"python\"><span class=\"code-block-extension-codeLine\" data-line-num=\"1\">split_documents = text_splitter.split_documents(document)<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"2\"><span class=\"hljs-built_in\">print<\/span>(<span class=\"hljs-string\">f'documents:<span class=\"hljs-subst\">{<span class=\"hljs-built_in\">len<\/span>(split_documents)}<\/span>'<\/span>)<\/span>\n<\/code><\/pre>\n<p>\u52a0\u8f7d LLM \u6a21\u578b<\/p>\n<pre><\/div><div class=\"code-block-extension-headerRight\"><span class=\"code-block-extension-lang\">ini<\/span><div class=\"code-block-extension-copyCodeBtn\">\u590d\u5236\u4ee3\u7801<\/div><\/div><\/div><code class=\"hljs language-ini code-block-extension-codeShowNum\" lang=\"ini\"><span class=\"code-block-extension-codeLine\" data-line-num=\"1\"><span class=\"hljs-attr\">overal_temperature<\/span> = <span class=\"hljs-number\">0.1<\/span><\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"2\"><span class=\"hljs-attr\">flan_t5xxl<\/span> = HuggingFaceHub(repo_id=<span class=\"hljs-string\">\"google\/flan-t5-xxl\"<\/span>, <\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"3\">                         <span class=\"hljs-attr\">model_kwargs<\/span>={<span class=\"hljs-string\">\"temperature\"<\/span>:overal_temperature, <\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"4\">                                       \"max_new_tokens\":200}<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"5\">                         ) <\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"6\"><\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"7\"><span class=\"hljs-attr\">llm<\/span> = flan_t5xxl<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"8\"><span class=\"hljs-attr\">tools<\/span> = load_tools([<span class=\"hljs-string\">\"llm-math\"<\/span>], llm=llm)<\/span>\n<\/code><\/pre>\n<p>\u521b\u5efa\u603b\u7ed3\u94fe<\/p>\n<pre><\/div><div class=\"code-block-extension-headerRight\"><span class=\"code-block-extension-lang\">ini<\/span><div class=\"code-block-extension-copyCodeBtn\">\u590d\u5236\u4ee3\u7801<\/div><\/div><\/div><code class=\"hljs language-ini code-block-extension-codeShowNum\" lang=\"ini\"><span class=\"code-block-extension-codeLine\" data-line-num=\"1\"><span class=\"hljs-attr\">chain<\/span> = load_summarize_chain(llm, chain_type=<span class=\"hljs-string\">\"refine\"<\/span>, verbose=<span class=\"hljs-literal\">True<\/span>)<\/span>\n<\/code><\/pre>\n<p>\u6267\u884c\u603b\u7ed3\u94fe<\/p>\n<pre><\/div><div class=\"code-block-extension-headerRight\"><span class=\"code-block-extension-lang\">scss<\/span><div class=\"code-block-extension-copyCodeBtn\">\u590d\u5236\u4ee3\u7801<\/div><\/div><\/div><code class=\"hljs language-scss code-block-extension-codeShowNum\" lang=\"scss\"><span class=\"code-block-extension-codeLine\" data-line-num=\"1\">chain<span class=\"hljs-selector-class\">.run<\/span>(split_documents)<\/span>\n<\/code><\/pre>\n<blockquote>\n<p>\u4f5c\u8005\uff1a\u4eac\u4e1c\u79d1\u6280 \u6768\u5efa<\/p>\n<p>\u6765\u6e90\uff1a\u4eac\u4e1c\u4e91\u5f00\u53d1\u8005\u793e\u533a<\/p>\n<\/blockquote>","protected":false},"excerpt":{"rendered":"<p>\u4f7f\u7528LangChain\u5f00\u53d1LLM\u5e94\u7528\u65f6\uff0c\u9700\u8981\u673a\u5668\u8fdb\u884cGLM\u90e8\u7f72\uff0c\u597d\u591a\u540c\u5b66\u7b2c\u4e00\u6b65\u5c31\u88ab\u529d\u9000\u4e86\uff0c\u90a3\u4e48\u5982\u4f55\u7ed5\u8fc7\u8fd9\u4e2a\u6b65\u9aa4\u5148\u5b66\u4e60LLM\u6a21\u578b\u7684\u5e94\u7528\uff0c\u5bf9Langchain\u8fdb\u884c\u5feb\u901f\u4e0a\u624b\uff1f\u672c\u7247\u8bb2\u89e33\u4e2a\u628aLangChain<\/p>\n","protected":false},"author":1,"featured_media":2441,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"rank_math_title":"import | \u4ee3\u7801 | \u590d\u5236 - \u5948\u65af\u79d1\u6280\u793e\u533a","rank_math_description":"\u5948\u65af\u79d1\u6280\u793e\u533a\u4e13\u6ce8\u4e8eimport\u3001\u4ee3\u7801\u3001\u590d\u5236\u3001langchainagents\u3001javascript\uff0c\u63d0\u4f9b\u4e13\u4e1a\u7684\u5206\u4eab\u548c\u8ba8\u8bba\u5e73\u53f0\u3002","rank_math_focus_keyword":"import,\u4ee3\u7801,\u590d\u5236,langchainagents,javascript","views":"12","footnotes":""},"categories":[3],"tags":[126,127,128,129,136],"collection":[],"class_list":["post-1207","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-fenlei2","tag-gpt","tag-ai","tag-128","tag-129","tag-136"],"acf":[],"_links":{"self":[{"href":"https:\/\/www.nicekj.com\/nicekj2024\/wp\/v2\/posts\/1207","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.nicekj.com\/nicekj2024\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.nicekj.com\/nicekj2024\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.nicekj.com\/nicekj2024\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.nicekj.com\/nicekj2024\/wp\/v2\/comments?post=1207"}],"version-history":[{"count":0,"href":"https:\/\/www.nicekj.com\/nicekj2024\/wp\/v2\/posts\/1207\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.nicekj.com\/nicekj2024\/wp\/v2\/media\/2441"}],"wp:attachment":[{"href":"https:\/\/www.nicekj.com\/nicekj2024\/wp\/v2\/media?parent=1207"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.nicekj.com\/nicekj2024\/wp\/v2\/categories?post=1207"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.nicekj.com\/nicekj2024\/wp\/v2\/tags?post=1207"},{"taxonomy":"collection","embeddable":true,"href":"https:\/\/www.nicekj.com\/nicekj2024\/wp\/v2\/collection?post=1207"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}