{"id":3606,"date":"2024-05-07T12:06:47","date_gmt":"2024-05-07T04:06:47","guid":{"rendered":"https:\/\/www.aqwu.net\/wp\/?p=3606"},"modified":"2024-05-07T13:13:48","modified_gmt":"2024-05-07T05:13:48","slug":"llamaindex-%e5%85%a5%e9%97%a8%e6%95%99%e7%a8%8b-%ef%bc%88%e6%9c%ac%e5%9c%b0%e6%a8%a1%e5%9e%8b%ef%bc%89","status":"publish","type":"post","link":"https:\/\/www.aqwu.net\/wp\/?p=3606","title":{"rendered":"LlamaIndex \u5165\u95e8\u6559\u7a0b \uff08Ollama\uff09"},"content":{"rendered":"\n<p>\u8fd9\u662f\u6211\u4eec\u8457\u540d\u7684\u201c5 \u884c\u4ee3\u7801\u201d\u5165\u95e8\u793a\u4f8b\uff0c\u5176\u4e2d\u5305\u542b\u672c\u5730LLM\u548c\u5d4c\u5165\u6a21\u578b\u3002\u6211\u4eec\u5c06\u4f7f\u7528&nbsp;<code>nomic-embed-text<\/code>&nbsp;\u548c&nbsp;<code>Llama3<\/code>&nbsp;\u4f5c\u4e3a\u6211\u4eec\u7684\u5d4c\u5165\u6a21\u578b\uff0c\u4e24\u8005\u90fd\u901a\u8fc7&nbsp;<code>Ollama<\/code>&nbsp;\u63d0\u4f9b\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>1. \u4e0b\u8f7d\u6570\u636e<\/strong><\/h2>\n\n\n\n<p>\u8fd9\u4e2a\u4f8b\u5b50\u4f7f\u7528\u4e86\u4fdd\u7f57\u00b7\u683c\u96f7\u5384\u59c6\uff08Paul Graham\uff09\u7684\u6587\u7ae0\u201c<a href=\"http:\/\/paulgraham.com\/worked.html\">\u6211\u505a\u4e86\u4ec0\u4e48<\/a>\u201d\u7684\u6587\u672c\u3002\u8fd9\u4e2a\u4f8b\u5b50\u548c\u8bb8\u591a\u5176\u4ed6\u4f8b\u5b50\u53ef\u4ee5\u5728\u6211\u4eec\u7684 repo&nbsp;<code>examples<\/code>&nbsp;\u6587\u4ef6\u5939\u4e2d\u627e\u5230\u3002<\/p>\n\n\n\n<p>\u83b7\u53d6\u5b83\u7684\u6700\u7b80\u5355\u65b9\u6cd5\u662f\u901a\u8fc7\u6b64\u94fe\u63a5\u4e0b\u8f7d\u5b83\u5e76\u5c06\u5176\u4fdd\u5b58\u5728&nbsp;<code>data<\/code> \u76ee\u5f55\u4e0b\uff0c\u6587\u4ef6\u540d\u4e3a\uff1apaul_graham_essay.txt<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>2. \u8bbe\u7f6e<\/strong><\/h2>\n\n\n\n<p>Ollama \u662f\u4e00\u4e2a\u5e2e\u52a9\u60a8\u5728\u672c\u5730\u8fdb\u884cLLMs\u8bbe\u7f6e\u7684\u5de5\u5177\uff08\u76ee\u524d\u5728 OSX \u548c Linux \u4e0a\u53d7\u652f\u6301\u3002\u53ef\u4ee5\u901a\u8fc7 WSL 2 \u5728 Windows \u4e0a\u5b89\u88c5 Ollama \u3002<\/p>\n\n\n\n<p>\u6309\u7167<a href=\"https:\/\/github.com\/ollama\/ollama\">\u81ea\u8ff0\u6587\u4ef6<\/a>\u4e86\u89e3\u5982\u4f55\u5b89\u88c5\u5b83\u3002<\/p>\n\n\n\n<p>\u8981\u4e0b\u8f7d Llama3 \u6a21\u578b\uff0c\u53ea\u9700\u6267\u884c .<\/p>\n\n\n\n<div class=\"wp-block-urvanov-syntax-highlighter-code-block\"><pre class=\"lang:sh decode:true \">ollama pull llama3<\/pre><\/div>\n\n\n\n<p>\u8981\u4e0b\u8f7d nom \u5d4c\u5165\uff0c\u53ea\u9700\u6267\u884c<\/p>\n\n\n\n<div class=\"wp-block-urvanov-syntax-highlighter-code-block\"><pre class=\"lang:sh decode:true \">ollama pull nomic-embed-text<\/pre><\/div>\n\n\n\n<p><strong>\u6ce8\u610f<\/strong>\uff1a\u60a8\u5c06\u9700\u8981\u4e00\u53f0\u81f3\u5c11\u5177\u6709 32GB RAM \u7684\u8ba1\u7b97\u673a\u3002<\/p>\n\n\n\n<p>\u8981\u5bfc\u5165\u00a0<code>llama_index.llms.ollama<\/code>\u00a0\uff0c\u60a8\u5e94\u8be5\u8fd0\u884c<\/p>\n\n\n\n<div class=\"wp-block-urvanov-syntax-highlighter-code-block\"><pre class=\"lang:sh decode:true \" >pip install llama-index-llms-ollama<\/pre><\/div>\n\n\n\n<p>\u8981\u5bfc\u5165\u00a0<code>llama_index.embeddings.ollama<\/code>\u00a0\uff0c\u60a8\u5e94\u8be5\u8fd0\u884c<\/p>\n\n\n\n<div class=\"wp-block-urvanov-syntax-highlighter-code-block\"><pre class=\"lang:sh decode:true \" >pip install llama-index-embeddings-ollama\u00a0<\/pre><\/div>\n\n\n\n<p><a href=\"https:\/\/llamahub.ai\">https:\/\/llamahub.ai<\/a> \u4e0a\u5217\u51fa\u4e86\u66f4\u591a\u96c6\u6210\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>3. \u52a0\u8f7d\u6570\u636e\u5e76\u6784\u5efa\u7d22\u5f15<\/strong><\/h2>\n\n\n\n<div class=\"wp-block-urvanov-syntax-highlighter-code-block\"><pre class=\"lang:python decode:true \" >from llama_index.core import VectorStoreIndex, SimpleDirectoryReader, Settings\nfrom llama_index.embeddings.ollama import OllamaEmbedding\nfrom llama_index.llms.ollama import Ollama\n\ndocuments = SimpleDirectoryReader(\"data\").load_data()\n\n# nomic embedding model\nSettings.embed_model = OllamaEmbedding(model_name=\"nomic-embed-text\")\n\n# ollama\nSettings.llm = Ollama(model=\"llama3\", request_timeout=360.0)\n\nindex = VectorStoreIndex.from_documents(\n    documents,\n)<\/pre><\/div>\n\n\n\n<p>\u8fd9\u5c06\u5728\u00a0<code>data<\/code>\u00a0\u6587\u4ef6\u5939\u4e2d\u7684\u6587\u6863\u4e0a\u6784\u5efa\u7d22\u5f15\uff08\u5728\u672c\u4f8b\u4e2d\uff0c\u8be5\u6587\u4ef6\u5939\u4ec5\u5305\u542b\u8bba\u6587\u6587\u672c\uff0c\u4f46\u53ef\u80fd\u5305\u542b\u8bb8\u591a\u6587\u6863\uff09\u3002<\/p>\n\n\n\n<p>\u76ee\u5f55\u7ed3\u6784\u5e94\u5982\u4e0b\u6240\u793a\uff1a<\/p>\n\n\n\n<div class=\"wp-block-urvanov-syntax-highlighter-code-block\"><pre class=\"lang:sh decode:true \" >\u251c\u2500\u2500 starter.py\n\u2514\u2500\u2500 data\n \u00a0\u00a0 \u2514\u2500\u2500 paul_graham_essay.txt<\/pre><\/div>\n\n\n\n<p>\u6211\u4eec\u4f7f\u7528\u00a0<code>nomic-embed-text<\/code>\u00a0from \u6211\u4eec\u7684\u00a0<code>Ollama<\/code>\u00a0\u5d4c\u5165\u5305\u88c5\u5668\u3002\u6211\u4eec\u8fd8\u4f7f\u7528\u5305\u88c5\u00a0<code>Ollama<\/code>\u00a0LLM\u5668\u52a0\u8f7d Llama3 \u6a21\u578b\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>4. \u67e5\u8be2\u6570\u636e<\/strong><\/h2>\n\n\n\n<p>\u5c06\u4ee5\u4e0b\u884c\u6dfb\u52a0\u5230\u00a0<code>starter.py<\/code><\/p>\n\n\n\n<div class=\"wp-block-urvanov-syntax-highlighter-code-block\"><pre class=\"lang:python decode:true \" >query_engine = index.as_query_engine()\nresponse = query_engine.query(\"What did the author do growing up?\")\nprint(response)<\/pre><\/div>\n\n\n\n<p>\u8fd9\u5c06\u521b\u5efa\u4e00\u4e2a\u5f15\u64ce\uff0c\u7528\u4e8e\u5bf9\u7d22\u5f15\u8fdb\u884c\u95ee\u7b54\uff0c\u5e76\u63d0\u51fa\u4e00\u4e2a\u7b80\u5355\u7684\u95ee\u9898\u3002\u60a8\u5e94\u8fd4\u56de\u7c7b\u4f3c\u4e8e\u4ee5\u4e0b\u5185\u5bb9\u7684\u54cd\u5e94\uff1a\u00a0<code>The author wrote short stories and tried to program on an IBM 1401.<\/code><\/p>\n\n\n\n<p><\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u8fd9\u662f\u6211\u4eec\u8457\u540d\u7684\u201c5 \u884c\u4ee3\u7801\u201d\u5165\u95e8\u793a\u4f8b\uff0c\u5176\u4e2d\u5305\u542b\u672c\u5730LLM\u548c\u5d4c\u5165\u6a21\u578b\u3002\u6211\u4eec\u5c06\u4f7f\u7528&nbsp;nomic-embe [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"set","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center 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