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LEANN/demo.ipynb
yichuan520030910320 d0c20b14d5 clear output pf ipynb
2025-07-19 19:48:56 -07:00

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{
"cells": [
{
"cell_type": "code",
"execution_count": null,
"metadata": {},
"outputs": [],
"source": [
"from leann.api import LeannBuilder, LeannSearcher, LeannChat\n",
"# 1. Build index (no embeddings stored!)\n",
"builder = LeannBuilder(backend_name=\"hnsw\")\n",
"builder.add_text(\"C# is a powerful programming language but it is not very popular\")\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\")\n",
"# 2. Search with real-time embeddings\n",
"searcher = LeannSearcher(\"knowledge.leann\")\n",
"results = searcher.search(\"programming languages\", top_k=2, recompute_beighbor_embeddings=True)\n",
"print(results)\n",
"\n",
"llm_config = {\"type\": \"ollama\", \"model\": \"qwen3:8b\"}\n",
"\n",
"chat = LeannChat(index_path=\"knowledge.leann\", llm_config=llm_config)\n",
"\n",
"response = chat.ask(\n",
" \"Compare the two retrieved programming languages and say which one is more popular today. Respond in a single well-formed sentence.\",\n",
" top_k=2,\n",
" recompute_beighbor_embeddings=True,\n",
")\n",
"print(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
}