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LEANN/demo.ipynb
yichuan520030910320 c083bda5b7 fix several bug
2025-07-23 18:17:11 -07:00

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{
"cells": [
{
"cell_type": "markdown",
"metadata": {},
"source": [
"# Quick Start in 30s"
]
},
{
"cell_type": "markdown",
"metadata": {},
"source": [
"## Build the index"
]
},
{
"cell_type": "code",
"execution_count": null,
"metadata": {},
"outputs": [],
"source": [
"from leann.api import LeannBuilder\n",
"\n",
"builder = LeannBuilder(backend_name=\"hnsw\")\n",
"builder.add_text(\"C# is a powerful programming language\")\n",
"builder.add_text(\"Python is a powerful programming language and it is very popular\")\n",
"builder.add_text(\"Machine learning transforms industries\")\n",
"builder.add_text(\"Neural networks process complex data\")\n",
"builder.add_text(\"Leann is a great storage saving engine for RAG on your MacBook\")\n",
"builder.build_index(\"knowledge.leann\")"
]
},
{
"cell_type": "markdown",
"metadata": {},
"source": [
"## Search with real-time embeddings"
]
},
{
"cell_type": "code",
"execution_count": null,
"metadata": {},
"outputs": [],
"source": [
"from leann.api import LeannSearcher\n",
"\n",
"searcher = LeannSearcher(\"knowledge.leann\")\n",
"results = searcher.search(\"programming languages\", top_k=2)\n",
"results"
]
},
{
"cell_type": "markdown",
"metadata": {},
"source": [
"## Chat with LEANN using retrieved results"
]
},
{
"cell_type": "code",
"execution_count": null,
"metadata": {},
"outputs": [],
"source": [
"from leann.api import LeannChat\n",
"\n",
"llm_config = {\n",
" \"type\": \"ollama\",\n",
" \"model\": \"llama3.2:1b\"\n",
"}\n",
"\n",
"chat = LeannChat(index_path=\"knowledge.leann\", llm_config=llm_config)\n",
"response = chat.ask(\n",
" \"Compare the two retrieved programming languages and say which one is more popular today.\",\n",
" top_k=2,\n",
")\n",
"response"
]
}
],
"metadata": {
"kernelspec": {
"display_name": ".venv",
"language": "python",
"name": "python3"
},
"language_info": {
"codemirror_mode": {
"name": "ipython",
"version": 3
},
"file_extension": ".py",
"mimetype": "text/x-python",
"name": "python",
"nbconvert_exporter": "python",
"pygments_lexer": "ipython3",
"version": "3.11.12"
}
},
"nbformat": 4,
"nbformat_minor": 2
}