forked from Archives/langchain
58e95cd11e
# Better docs for weaviate hybrid search
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Fixes: NA
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@dev2049
265 lines
8.9 KiB
Plaintext
265 lines
8.9 KiB
Plaintext
{
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"cells": [
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{
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"cell_type": "markdown",
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"id": "ce0f17b9",
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"metadata": {},
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"source": [
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"# Weaviate Hybrid Search\n",
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"\n",
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">[Weaviate](https://weaviate.io/developers/weaviate) is an open source vector database.\n",
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"\n",
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">[Hybrid search](https://weaviate.io/blog/hybrid-search-explained) is a technique that combines multiple search algorithms to improve the accuracy and relevance of search results. It uses the best features of both keyword-based search algorithms with vector search techniques.\n",
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"\n",
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">The `Hybrid search in Weaviate` uses sparse and dense vectors to represent the meaning and context of search queries and documents.\n",
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"\n",
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"This notebook shows how to use `Weaviate hybrid search` as a LangChain retriever."
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]
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},
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{
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"attachments": {},
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"cell_type": "markdown",
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"id": "c307b082",
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"metadata": {},
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"source": [
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"Set up the retriever:"
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]
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},
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{
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"cell_type": "code",
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"execution_count": 1,
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"id": "bba863a2-977c-4add-b5f4-bfc33a80eae5",
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"metadata": {
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"tags": []
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},
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"outputs": [],
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"source": [
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"#!pip install weaviate-client"
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]
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},
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{
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"cell_type": "code",
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"execution_count": 2,
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"id": "c10dd962",
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"metadata": {},
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"outputs": [],
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"source": [
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"import weaviate\n",
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"import os\n",
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"\n",
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"WEAVIATE_URL = os.getenv(\"WEAVIATE_URL\")\n",
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"client = weaviate.Client(\n",
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" url=WEAVIATE_URL,\n",
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" auth_client_secret=weaviate.AuthApiKey(api_key=os.getenv(\"WEAVIATE_API_KEY\")),\n",
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" additional_headers={\n",
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" \"X-Openai-Api-Key\": os.getenv(\"OPENAI_API_KEY\"),\n",
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" },\n",
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")\n",
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"\n",
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"# client.schema.delete_all()"
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]
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},
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{
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"cell_type": "code",
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"execution_count": 3,
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"id": "f47a2bfe",
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"metadata": {},
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"outputs": [
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{
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"name": "stderr",
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"output_type": "stream",
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"text": [
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"/workspaces/langchain/langchain/vectorstores/analyticdb.py:20: MovedIn20Warning: The ``declarative_base()`` function is now available as sqlalchemy.orm.declarative_base(). (deprecated since: 2.0) (Background on SQLAlchemy 2.0 at: https://sqlalche.me/e/b8d9)\n",
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" Base = declarative_base() # type: Any\n"
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]
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}
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],
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"source": [
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"from langchain.retrievers.weaviate_hybrid_search import WeaviateHybridSearchRetriever\n",
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"from langchain.schema import Document"
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]
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},
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{
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"cell_type": "code",
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"execution_count": 4,
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"id": "f2eff08e",
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"metadata": {},
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"outputs": [],
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"source": [
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"retriever = WeaviateHybridSearchRetriever(\n",
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" client, index_name=\"LangChain\", text_key=\"text\"\n",
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")"
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]
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},
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{
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"attachments": {},
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"cell_type": "markdown",
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"id": "b68debff",
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"metadata": {},
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"source": [
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"Add some data:"
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]
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},
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{
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"cell_type": "code",
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"execution_count": 5,
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"id": "cd8a7b17",
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"metadata": {},
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"outputs": [],
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"source": [
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"docs = [\n",
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" Document(\n",
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" metadata={\n",
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" \"title\": \"Embracing The Future: AI Unveiled\",\n",
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" \"author\": \"Dr. Rebecca Simmons\",\n",
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" },\n",
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" page_content=\"A comprehensive analysis of the evolution of artificial intelligence, from its inception to its future prospects. Dr. Simmons covers ethical considerations, potentials, and threats posed by AI.\",\n",
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" ),\n",
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" Document(\n",
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" metadata={\n",
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" \"title\": \"Symbiosis: Harmonizing Humans and AI\",\n",
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" \"author\": \"Prof. Jonathan K. Sterling\",\n",
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" },\n",
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" page_content=\"Prof. Sterling explores the potential for harmonious coexistence between humans and artificial intelligence. The book discusses how AI can be integrated into society in a beneficial and non-disruptive manner.\",\n",
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" ),\n",
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" Document(\n",
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" metadata={\"title\": \"AI: The Ethical Quandary\", \"author\": \"Dr. Rebecca Simmons\"},\n",
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" page_content=\"In her second book, Dr. Simmons delves deeper into the ethical considerations surrounding AI development and deployment. It is an eye-opening examination of the dilemmas faced by developers, policymakers, and society at large.\",\n",
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" ),\n",
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" Document(\n",
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" metadata={\n",
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" \"title\": \"Conscious Constructs: The Search for AI Sentience\",\n",
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" \"author\": \"Dr. Samuel Cortez\",\n",
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" },\n",
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" page_content=\"Dr. Cortez takes readers on a journey exploring the controversial topic of AI consciousness. The book provides compelling arguments for and against the possibility of true AI sentience.\",\n",
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" ),\n",
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" Document(\n",
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" metadata={\n",
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" \"title\": \"Invisible Routines: Hidden AI in Everyday Life\",\n",
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" \"author\": \"Prof. Jonathan K. Sterling\",\n",
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" },\n",
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" page_content=\"In his follow-up to 'Symbiosis', Prof. Sterling takes a look at the subtle, unnoticed presence and influence of AI in our everyday lives. It reveals how AI has become woven into our routines, often without our explicit realization.\",\n",
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" ),\n",
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"]"
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]
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},
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{
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"cell_type": "code",
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"execution_count": 6,
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"id": "3c5970db",
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"metadata": {},
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"outputs": [
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{
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"data": {
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"text/plain": [
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"['eda16d7d-437d-4613-84ae-c2e38705ec7a',\n",
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" '04b501bf-192b-4e72-be77-2fbbe7e67ebf',\n",
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" '18a1acdb-23b7-4482-ab04-a6c2ed51de77',\n",
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" '88e82cc3-c020-4b5a-b3c6-ca7cf3fc6a04',\n",
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" 'f6abd9d5-32ed-46c4-bd08-f8d0f7c9fc95']"
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]
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},
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"execution_count": 6,
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"metadata": {},
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"output_type": "execute_result"
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}
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],
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"source": [
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"retriever.add_documents(docs)"
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]
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},
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{
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"attachments": {},
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"cell_type": "markdown",
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"id": "6e030694",
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"metadata": {},
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"source": [
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"Do a hybrid search:"
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]
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},
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{
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"cell_type": "code",
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"execution_count": 7,
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"id": "bf7dbb98",
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"metadata": {},
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"outputs": [
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{
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"data": {
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"text/plain": [
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"[Document(page_content='In her second book, Dr. Simmons delves deeper into the ethical considerations surrounding AI development and deployment. It is an eye-opening examination of the dilemmas faced by developers, policymakers, and society at large.', metadata={}),\n",
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" Document(page_content='A comprehensive analysis of the evolution of artificial intelligence, from its inception to its future prospects. Dr. Simmons covers ethical considerations, potentials, and threats posed by AI.', metadata={}),\n",
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" Document(page_content=\"In his follow-up to 'Symbiosis', Prof. Sterling takes a look at the subtle, unnoticed presence and influence of AI in our everyday lives. It reveals how AI has become woven into our routines, often without our explicit realization.\", metadata={}),\n",
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" Document(page_content='Prof. Sterling explores the potential for harmonious coexistence between humans and artificial intelligence. The book discusses how AI can be integrated into society in a beneficial and non-disruptive manner.', metadata={})]"
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]
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},
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"execution_count": 7,
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"metadata": {},
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"output_type": "execute_result"
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}
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],
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"source": [
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"retriever.get_relevant_documents(\"the ethical implications of AI\")"
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]
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},
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{
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"attachments": {},
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"cell_type": "markdown",
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"id": "d0c5bb4d",
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"metadata": {},
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"source": [
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"Do a hybrid search with where filter:"
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]
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},
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{
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"cell_type": "code",
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"execution_count": 8,
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"id": "b2bc87c1",
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"metadata": {},
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"outputs": [
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{
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"data": {
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"text/plain": [
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"[Document(page_content='Prof. Sterling explores the potential for harmonious coexistence between humans and artificial intelligence. The book discusses how AI can be integrated into society in a beneficial and non-disruptive manner.', metadata={}),\n",
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" Document(page_content=\"In his follow-up to 'Symbiosis', Prof. Sterling takes a look at the subtle, unnoticed presence and influence of AI in our everyday lives. It reveals how AI has become woven into our routines, often without our explicit realization.\", metadata={})]"
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]
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},
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"execution_count": 8,
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"metadata": {},
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"output_type": "execute_result"
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}
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],
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"source": [
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"retriever.get_relevant_documents(\n",
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" \"AI integration in society\",\n",
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" where_filter={\n",
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" \"path\": [\"author\"],\n",
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" \"operator\": \"Equal\",\n",
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" \"valueString\": \"Prof. Jonathan K. Sterling\",\n",
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" },\n",
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")"
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]
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}
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],
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"metadata": {
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"kernelspec": {
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"display_name": "Python 3 (ipykernel)",
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"language": "python",
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"name": "python3"
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},
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"language_info": {
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"codemirror_mode": {
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"name": "ipython",
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"version": 3
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},
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"file_extension": ".py",
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"mimetype": "text/x-python",
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"name": "python",
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"nbconvert_exporter": "python",
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"pygments_lexer": "ipython3",
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"version": "3.9.16"
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}
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},
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"nbformat": 4,
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"nbformat_minor": 5
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}
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