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langchain_llms/data_connections/us_constitution_assistant.ipynb
2023-08-25 18:32:54 -07:00

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{
"cells": [
{
"cell_type": "markdown",
"id": "925794f5-a4a8-4753-86b9-8fe4dac8455e",
"metadata": {},
"source": [
"## Ask a Legal Research Assistant Bot about the US Constitution"
]
},
{
"cell_type": "code",
"execution_count": 1,
"id": "063dcd9d-b508-499d-a23e-efa892bb628a",
"metadata": {},
"outputs": [],
"source": [
"from langchain.vectorstores import Chroma\n",
"from langchain.chat_models import ChatOpenAI\n",
"from langchain.document_loaders import TextLoader\n",
"from langchain.embeddings.openai import OpenAIEmbeddings\n",
"from langchain.text_splitter import CharacterTextSplitter\n",
"from langchain.retrievers import ContextualCompressionRetriever\n",
"from langchain.retrievers.document_compressors import LLMChainExtractor"
]
},
{
"cell_type": "code",
"execution_count": 2,
"id": "77afad7d-9c48-44f8-878e-46fc10f4c804",
"metadata": {},
"outputs": [],
"source": [
"def us_constitution_helper(question):\n",
" \"\"\"\n",
" Takes in a question about the US Constitution and returns the most relevant\n",
" part of the constitution. Notice it may not directly answer the actual question!\n",
" \"\"\"\n",
"\n",
" loader = TextLoader(\"US_Constitution.txt\")\n",
" documents = loader.load()\n",
"\n",
" text_splitter = CharacterTextSplitter.from_tiktoken_encoder(chunk_size=500)\n",
" docs = text_splitter.split_documents(documents)\n",
"\n",
" embedding_function = OpenAIEmbeddings()\n",
" db = Chroma.from_documents(docs, embedding_function, persist_directory=\"./constitution\")\n",
" db.persist()\n",
"\n",
" llm = ChatOpenAI(temperature=0)\n",
" compressor = LLMChainExtractor.from_llm(llm)\n",
" compression_retriever = ContextualCompressionRetriever(base_compressor=compressor,\n",
" base_retriever=db.as_retriever())\n",
"\n",
" compressed_docs = compression_retriever.get_relevant_documents(question)\n",
"\n",
" return compressed_docs[0].page_content"
]
},
{
"cell_type": "code",
"execution_count": 3,
"id": "072ef3e4-49d5-48c7-9882-57100401ba35",
"metadata": {},
"outputs": [
{
"name": "stderr",
"output_type": "stream",
"text": [
"/home/yudhvir/Documents/miniconda3/envs/nlp/lib/python3.11/site-packages/langchain/chains/llm.py:275: UserWarning: The predict_and_parse method is deprecated, instead pass an output parser directly to LLMChain.\n",
" warnings.warn(\n"
]
},
{
"name": "stdout",
"output_type": "stream",
"text": [
"Fifth Amendment\n",
"No person shall be held to answer for a capital, or otherwise infamous crime, unless on a presentment or indictment of a Grand Jury, except in cases arising in the land or naval forces, or in the Militia, when in actual service in time of War or public danger; nor shall any person be subject for the same offence to be twice put in jeopardy of life or limb; nor shall be compelled in any criminal case to be a witness against himself, nor be deprived of life, liberty, or property, without due process of law; nor shall private property be taken for public use, without just compensation.\n"
]
}
],
"source": [
"print(us_constitution_helper(\"What is the 5th Amendment?\"))"
]
},
{
"cell_type": "code",
"execution_count": 4,
"id": "e051813e-3329-4880-ae1f-7500cb6d3bb8",
"metadata": {},
"outputs": [
{
"name": "stderr",
"output_type": "stream",
"text": [
"/home/yudhvir/Documents/miniconda3/envs/nlp/lib/python3.11/site-packages/langchain/chains/llm.py:275: UserWarning: The predict_and_parse method is deprecated, instead pass an output parser directly to LLMChain.\n",
" warnings.warn(\n"
]
},
{
"name": "stdout",
"output_type": "stream",
"text": [
"The powers not delegated to the United States by the Constitution, nor prohibited by it to the States, are reserved to the States respectively, or to the people.\n"
]
}
],
"source": [
"print(us_constitution_helper(\"What is the 10th Amendment?\"))"
]
},
{
"cell_type": "code",
"execution_count": null,
"id": "df35b64a-6323-44a6-a076-29f7a3cbdb18",
"metadata": {},
"outputs": [],
"source": []
}
],
"metadata": {
"kernelspec": {
"display_name": "Python 3 (ipykernel)",
"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": "3.11.4"
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}