Prakhar Bhandari
commited on
Commit
·
c8025cd
1
Parent(s):
2d9bc04
Modular v1.0
Browse files- kg_builder/.DS_Store +0 -0
- kg_builder/README.md +0 -0
- kg_builder/requirements.txt +10 -0
- kg_builder/src/.DS_Store +0 -0
- kg_builder/src/__init__.py +0 -0
- kg_builder/src/__pycache__/api_connections.cpython-39.pyc +0 -0
- kg_builder/src/__pycache__/knowledge_graph_builder.cpython-39.pyc +0 -0
- kg_builder/src/__pycache__/query_graph.cpython-39.pyc +0 -0
- kg_builder/src/api_connections.py +16 -0
- kg_builder/src/knowledge_graph_builder.py +138 -0
- kg_builder/src/main.py +33 -0
- kg_builder/src/query_graph.py +23 -0
- kg_creation.ipynb +0 -473
kg_builder/.DS_Store
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kg_builder/README.md
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kg_builder/requirements.txt
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numpy
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pandas
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requests
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openai
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neo4j
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wikipedia
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tiktoken
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langchain
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langchain_openai
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tqdm
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kg_builder/src/.DS_Store
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Binary file (6.15 kB). View file
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kg_builder/src/__init__.py
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kg_builder/src/__pycache__/api_connections.cpython-39.pyc
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kg_builder/src/__pycache__/knowledge_graph_builder.cpython-39.pyc
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kg_builder/src/__pycache__/query_graph.cpython-39.pyc
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Binary file (829 Bytes). View file
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kg_builder/src/api_connections.py
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from langchain_community.graphs import Neo4jGraph
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import os
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# Neo4j connection setup
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url = "neo4j+s://2f409740.databases.neo4j.io"
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username = "neo4j"
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password = "oe7A9ugxhxcuEtwci8khPIt2TTdz_am9AYDx1r9e9Tw"
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graph = Neo4jGraph(
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url=url,
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username=username,
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password=password
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)
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# OpenAI API key setup
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os.environ["OPENAI_API_KEY"] = "sk-proj-hceIL56CC2zfjAvAlMjbT3BlbkFJyHKX2wbiQxsG9yy8dGJN"
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kg_builder/src/knowledge_graph_builder.py
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# Add to knowledge_graph_builder.py
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from api_connections import graph
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from langchain_community.graphs.graph_document import (
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Node as BaseNode,
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Relationship as BaseRelationship,
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GraphDocument,
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)
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from langchain.schema import Document
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from typing import List, Dict, Any, Optional
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from langchain.pydantic_v1 import Field, BaseModel
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class Property(BaseModel):
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"""A single property consisting of key and value"""
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key: str = Field(..., description="key")
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value: str = Field(..., description="value")
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class Node(BaseNode):
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properties: Optional[List[Property]] = Field(
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None, description="List of node properties")
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class Relationship(BaseRelationship):
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properties: Optional[List[Property]] = Field(
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None, description="List of relationship properties"
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)
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class KnowledgeGraph(BaseModel):
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"""Generate a knowledge graph with entities and relationships."""
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nodes: List[Node] = Field(..., description="List of nodes in the knowledge graph")
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rels: List[Relationship] = Field(..., description="List of relationships in the knowledge graph")
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def format_property_key(s: str) -> str:
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words = s.split()
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if not words:
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return s
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first_word = words[0].lower()
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capitalized_words = [word.capitalize() for word in words[1:]]
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return "".join([first_word] + capitalized_words)
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def props_to_dict(props) -> dict:
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"""Convert properties to a dictionary."""
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properties = {}
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if not props:
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return properties
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for p in props:
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properties[format_property_key(p.key)] = p.value
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return properties
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def map_to_base_node(node: Node) -> BaseNode:
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"""Map the KnowledgeGraph Node to the base Node."""
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properties = props_to_dict(node.properties) if node.properties else {}
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properties["name"] = node.id.title() # Assuming nodes have an 'id' attribute for this operation
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return BaseNode(
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id=node.id.title(), type=node.type.capitalize(), properties=properties
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)
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def map_to_base_relationship(rel: Relationship) -> BaseRelationship:
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"""Map the KnowledgeGraph Relationship to the base Relationship."""
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source = map_to_base_node(rel.source)
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target = map_to_base_node(rel.target)
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properties = props_to_dict(rel.properties) if rel.properties else {}
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return BaseRelationship(
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source=source, target=target, type=rel.type, properties=properties
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)
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import os
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from langchain.chains.openai_functions import (
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create_openai_fn_chain,
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create_structured_output_runnable,
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create_structured_output_chain,
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)
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from langchain_openai import ChatOpenAI
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from langchain.prompts import ChatPromptTemplate
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# Setting the OpenAI API key for usage in LLM calls
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os.environ["OPENAI_API_KEY"] = "sk-proj-hceIL56CC2zfjAvAlMjbT3BlbkFJyHKX2wbiQxsG9yy8dGJN"
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llm = ChatOpenAI(model="gpt-3.5-turbo-16k", temperature=0)
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def get_extraction_chain(
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allowed_nodes: Optional[List[str]] = None,
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allowed_rels: Optional[List[str]] = None
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):
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prompt = ChatPromptTemplate.from_messages(
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[(
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"system",
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f"""# Knowledge Graph Instructions for GPT-4
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## 1. Overview
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You are a sophisticated algorithm tailored for parsing Wikipedia pages to construct a knowledge graph about chemotherapy and related cancer treatments.
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- **Nodes** symbolize entities such as medical conditions, drugs, symptoms, treatments, and associated medical concepts.
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- The goal is to create a precise and comprehensible knowledge graph, serving as a reliable resource for medical practitioners and scholarly research.
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## 2. Labeling Nodes
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- **Consistency**: Utilize uniform labels for node types to maintain clarity.
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- For instance, consistently label drugs as **"Drug"**, symptoms as **"Symptom"**, and treatments as **"Treatment"**.
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- **Node IDs**: Apply descriptive, legible identifiers for node IDs, sourced directly from the text.
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{'- **Allowed Node Labels:**' + ", ".join(['Drug', 'Symptom', 'Treatment', 'MedicalCondition', 'ResearchStudy']) if allowed_nodes else ""}
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{'- **Allowed Relationship Types**:' + ", ".join(['Treats', 'Causes', 'Researches', 'Recommends']) if allowed_rels else ""}
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## 3. Handling Numerical Data and Dates
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- Integrate numerical data and dates as attributes of the corresponding nodes.
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- **No Isolated Nodes for Dates/Numbers**: Directly associate dates and numerical figures as attributes with pertinent nodes.
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- **Property Format**: Follow a straightforward key-value pattern for properties, with keys in camelCase, for example, `approvedYear`, `dosageAmount`.
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## 4. Coreference Resolution
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- **Entity Consistency**: Guarantee uniform identification of each entity across the graph.
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- For example, if "Methotrexate" and "MTX" reference the same medication, uniformly apply "Methotrexate" as the node ID.
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## 5. Relationship Naming Conventions
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- **Clarity and Standardization**: Utilize clear and standardized relationship names, preferring uppercase with underscores for readability.
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- For instance, use "HAS_SIDE_EFFECT" instead of "HASSIDEEFFECT", use "CAN_RESULT_FROM" instead of "CANRESULTFROM" etc. You keep making the same mistakes of storing the relationships without the "_" in between the words. Any further similar errors will lead to termination.
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- **Relevance and Specificity**: Choose relationship names that accurately reflect the connection between nodes, such as "INHIBITS" or "ACTIVATES" for interactions between substances.
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## 6. Strict Compliance
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Rigorous adherence to these instructions is essential. Failure to comply with the specified formatting and labeling norms will necessitate output revision or discard.
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"""),
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("human", "Use the given format to extract information from the following input: {input}"),
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("human", "Tip: Precision in the node and relationship creation is vital for the integrity of the knowledge graph."),
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])
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return create_structured_output_chain(KnowledgeGraph, llm, prompt)
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def extract_and_store_graph(
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document: Document,
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nodes:Optional[List[str]] = None,
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rels:Optional[List[str]]=None) -> None:
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# Extract graph data using OpenAI functions
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extract_chain = get_extraction_chain(nodes, rels)
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data = extract_chain.invoke(document.page_content)['function']
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# Construct a graph document
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graph_document = GraphDocument(
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nodes = [map_to_base_node(node) for node in data.nodes],
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relationships = [map_to_base_relationship(rel) for rel in data.rels],
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source = document
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)
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# Store information into a graph
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graph.add_graph_documents([graph_document])
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kg_builder/src/main.py
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from knowledge_graph_builder import extract_and_store_graph
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from query_graph import query_knowledge_graph
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from langchain_community.document_loaders import WikipediaLoader
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from langchain.text_splitter import TokenTextSplitter
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from tqdm import tqdm
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def main():
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print("Starting the script...")
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# Take Wikipedia article name as input
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article_name = input("Enter the Wikipedia article name: ") # Corrected to proper input usage
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print(f"Loading documents for: {article_name}")
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# Load and process the Wikipedia article
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raw_documents = WikipediaLoader(query=article_name).load()
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text_splitter = TokenTextSplitter(chunk_size=4096, chunk_overlap=96)
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documents = text_splitter.split_documents(raw_documents[:5]) # Only process the first 5 documents
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print("Building the knowledge graph...")
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# Build the knowledge graph from the documents
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for i, d in tqdm(enumerate(documents), total=len(documents)):
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extract_and_store_graph(d)
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print("Graph construction complete. Please enter your query.")
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| 24 |
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# Take a query related to the graph
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| 25 |
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user_query = input("Enter your query related to the graph: ")
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| 26 |
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print(f"Querying the graph with: {user_query}")
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| 28 |
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# Query the graph and print the answer
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| 29 |
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answer = query_knowledge_graph(user_query)
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print("Answer to your query:", answer)
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| 31 |
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| 32 |
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if __name__ == "__main__":
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main()
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kg_builder/src/query_graph.py
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from langchain.chains import GraphCypherQAChain
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from langchain_openai import ChatOpenAI
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from api_connections import graph # Importing 'graph' from 'api_connections.py'
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def query_knowledge_graph(query):
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| 6 |
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print("Refreshing the graph schema...")
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| 7 |
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# Refresh the graph schema before querying
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| 8 |
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graph.refresh_schema()
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| 9 |
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| 10 |
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print("Setting up the Cypher QA Chain...")
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| 11 |
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# Setup the Cypher QA Chain with specific LLM configurations
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| 12 |
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cypher_chain = GraphCypherQAChain.from_llm(
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| 13 |
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graph=graph,
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| 14 |
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cypher_llm=ChatOpenAI(temperature=0, model="gpt-4"),
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| 15 |
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qa_llm=ChatOpenAI(temperature=0, model="gpt-3.5-turbo-16k"),
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| 16 |
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#verbose=True
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| 17 |
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)
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| 18 |
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| 19 |
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print(f"Executing the query: {query}")
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| 20 |
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# Execute the query and return results
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| 21 |
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result = cypher_chain.invoke({"query": query})
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| 22 |
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print("Query executed. Processing results...")
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| 23 |
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return result
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kg_creation.ipynb
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{
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"cells": [
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{
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"cell_type": "code",
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"execution_count": 1,
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"metadata": {},
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"outputs": [],
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| 8 |
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"source": [
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"import os\n",
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"os.environ['OPENAI_API_KEY'] = \"sk-proj-k8uMlsAJbdAuSWWnvaHyT3BlbkFJyQB8yMQavFuQDVmc4sNps\"\n",
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"\n",
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"import logging\n",
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"import sys\n",
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"\n",
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"logging.basicConfig(\n",
|
| 16 |
-
" stream=sys.stdout, level=logging.INFO\n",
|
| 17 |
-
") # logging.DEBUG for more verbose output\n",
|
| 18 |
-
"\n",
|
| 19 |
-
"\n",
|
| 20 |
-
"# define LLM\n",
|
| 21 |
-
"from llama_index.llms.openai import OpenAI\n",
|
| 22 |
-
"from llama_index.core import Settings\n",
|
| 23 |
-
"\n",
|
| 24 |
-
"Settings.llm = OpenAI(temperature=0, model=\"gpt-3.5-turbo-0125\")\n",
|
| 25 |
-
"Settings.chunk_size = 512"
|
| 26 |
-
]
|
| 27 |
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},
|
| 28 |
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{
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| 29 |
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"cell_type": "code",
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"metadata": {},
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"outputs": [
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{
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"name": "stdout",
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"output_type": "stream",
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]
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| 89 |
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}
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| 90 |
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],
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| 91 |
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"source": [
|
| 92 |
-
"!pip install langchain neo4j openai wikipedia tiktoken langchain_openai"
|
| 93 |
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]
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| 94 |
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},
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| 95 |
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{
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| 97 |
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| 98 |
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"metadata": {},
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| 99 |
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"outputs": [],
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| 100 |
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"source": [
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| 101 |
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"from langchain.graphs import Neo4jGraph\n",
|
| 102 |
-
"\n",
|
| 103 |
-
"url = \"neo4j+s://2f409740.databases.neo4j.io\"\n",
|
| 104 |
-
"username =\"neo4j\"\n",
|
| 105 |
-
"password = \"oe7A9ugxhxcuEtwci8khPIt2TTdz_am9AYDx1r9e9Tpw\"\n",
|
| 106 |
-
"graph = Neo4jGraph(\n",
|
| 107 |
-
" url=url,\n",
|
| 108 |
-
" username=username,\n",
|
| 109 |
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" password=password\n",
|
| 110 |
-
")"
|
| 111 |
-
]
|
| 112 |
-
},
|
| 113 |
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{
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| 114 |
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"cell_type": "code",
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| 115 |
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"execution_count": 4,
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| 116 |
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"metadata": {},
|
| 117 |
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"outputs": [],
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| 118 |
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"source": [
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| 119 |
-
"from langchain_community.graphs.graph_document import (\n",
|
| 120 |
-
" Node as BaseNode,\n",
|
| 121 |
-
" Relationship as BaseRelationship,\n",
|
| 122 |
-
" GraphDocument,\n",
|
| 123 |
-
")\n",
|
| 124 |
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"from langchain.schema import Document\n",
|
| 125 |
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"from typing import List, Dict, Any, Optional\n",
|
| 126 |
-
"from langchain.pydantic_v1 import Field, BaseModel\n",
|
| 127 |
-
"\n",
|
| 128 |
-
"class Property(BaseModel):\n",
|
| 129 |
-
" \"\"\"A single property consisting of key and value\"\"\"\n",
|
| 130 |
-
" key: str = Field(..., description=\"key\")\n",
|
| 131 |
-
" value: str = Field(..., description=\"value\")\n",
|
| 132 |
-
"\n",
|
| 133 |
-
"class Node(BaseNode):\n",
|
| 134 |
-
" properties: Optional[List[Property]] = Field(\n",
|
| 135 |
-
" None, description=\"List of node properties\")\n",
|
| 136 |
-
"\n",
|
| 137 |
-
"class Relationship(BaseRelationship):\n",
|
| 138 |
-
" properties: Optional[List[Property]] = Field(\n",
|
| 139 |
-
" None, description=\"List of relationship properties\"\n",
|
| 140 |
-
" )\n",
|
| 141 |
-
"\n",
|
| 142 |
-
"class KnowledgeGraph(BaseModel):\n",
|
| 143 |
-
" \"\"\"Generate a knowledge graph with entities and relationships.\"\"\"\n",
|
| 144 |
-
" nodes: List[Node] = Field(\n",
|
| 145 |
-
" ..., description=\"List of nodes in the knowledge graph\")\n",
|
| 146 |
-
" rels: List[Relationship] = Field(\n",
|
| 147 |
-
" ..., description=\"List of relationships in the knowledge graph\"\n",
|
| 148 |
-
" )"
|
| 149 |
-
]
|
| 150 |
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},
|
| 151 |
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{
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| 152 |
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"cell_type": "code",
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| 153 |
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"execution_count": 5,
|
| 154 |
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"metadata": {},
|
| 155 |
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"outputs": [],
|
| 156 |
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"source": [
|
| 157 |
-
"def format_property_key(s: str) -> str:\n",
|
| 158 |
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" words = s.split()\n",
|
| 159 |
-
" if not words:\n",
|
| 160 |
-
" return s\n",
|
| 161 |
-
" first_word = words[0].lower()\n",
|
| 162 |
-
" capitalized_words = [word.capitalize() for word in words[1:]]\n",
|
| 163 |
-
" return \"\".join([first_word] + capitalized_words)\n",
|
| 164 |
-
"\n",
|
| 165 |
-
"def props_to_dict(props) -> dict:\n",
|
| 166 |
-
" \"\"\"Convert properties to a dictionary.\"\"\"\n",
|
| 167 |
-
" properties = {}\n",
|
| 168 |
-
" if not props:\n",
|
| 169 |
-
" return properties\n",
|
| 170 |
-
" for p in props:\n",
|
| 171 |
-
" properties[format_property_key(p.key)] = p.value\n",
|
| 172 |
-
" return properties\n",
|
| 173 |
-
"\n",
|
| 174 |
-
"def map_to_base_node(node: Node) -> BaseNode:\n",
|
| 175 |
-
" \"\"\"Map the KnowledgeGraph Node to the base Node.\"\"\"\n",
|
| 176 |
-
" properties = props_to_dict(node.properties) if node.properties else {}\n",
|
| 177 |
-
" # Add name property for better Cypher statement generation\n",
|
| 178 |
-
" properties[\"name\"] = node.id.title()\n",
|
| 179 |
-
" return BaseNode(\n",
|
| 180 |
-
" id=node.id.title(), type=node.type.capitalize(), properties=properties\n",
|
| 181 |
-
" )\n",
|
| 182 |
-
"\n",
|
| 183 |
-
"\n",
|
| 184 |
-
"def map_to_base_relationship(rel: Relationship) -> BaseRelationship:\n",
|
| 185 |
-
" \"\"\"Map the KnowledgeGraph Relationship to the base Relationship.\"\"\"\n",
|
| 186 |
-
" source = map_to_base_node(rel.source)\n",
|
| 187 |
-
" target = map_to_base_node(rel.target)\n",
|
| 188 |
-
" properties = props_to_dict(rel.properties) if rel.properties else {}\n",
|
| 189 |
-
" return BaseRelationship(\n",
|
| 190 |
-
" source=source, target=target, type=rel.type, properties=properties\n",
|
| 191 |
-
" )"
|
| 192 |
-
]
|
| 193 |
-
},
|
| 194 |
-
{
|
| 195 |
-
"cell_type": "code",
|
| 196 |
-
"execution_count": 17,
|
| 197 |
-
"metadata": {},
|
| 198 |
-
"outputs": [],
|
| 199 |
-
"source": [
|
| 200 |
-
"import os\n",
|
| 201 |
-
"from langchain.chains.openai_functions import (\n",
|
| 202 |
-
" create_openai_fn_chain,\n",
|
| 203 |
-
" create_structured_output_chain,\n",
|
| 204 |
-
")\n",
|
| 205 |
-
"from langchain_openai import ChatOpenAI\n",
|
| 206 |
-
"from langchain.prompts import ChatPromptTemplate\n",
|
| 207 |
-
"\n",
|
| 208 |
-
"os.environ[\"OPENAI_API_KEY\"] = \"sk-proj-k8uMlsAJbdAuSWWnvaHyT3BlbkFJyQB8yMQavFuQDVmc4sNs\"\n",
|
| 209 |
-
"llm = ChatOpenAI(model=\"gpt-3.5-turbo-16k\", temperature=0)\n",
|
| 210 |
-
"\n",
|
| 211 |
-
"def get_extraction_chain(\n",
|
| 212 |
-
" allowed_nodes: Optional[List[str]] = None,\n",
|
| 213 |
-
" allowed_rels: Optional[List[str]] = None\n",
|
| 214 |
-
" ):\n",
|
| 215 |
-
" prompt = ChatPromptTemplate.from_messages(\n",
|
| 216 |
-
" [(\n",
|
| 217 |
-
" \"system\",\n",
|
| 218 |
-
" f\"\"\"# Knowledge Graph Instructions for GPT-4\n",
|
| 219 |
-
"## 1. Overview\n",
|
| 220 |
-
"You are a sophisticated algorithm tailored for parsing Wikipedia pages to construct a knowledge graph about chemotherapy and related cancer treatments.\n",
|
| 221 |
-
"- **Nodes** symbolize entities such as medical conditions, drugs, symptoms, treatments, and associated medical concepts.\n",
|
| 222 |
-
"- The goal is to create a precise and comprehensible knowledge graph, serving as a reliable resource for medical practitioners and scholarly research.\n",
|
| 223 |
-
"\n",
|
| 224 |
-
"## 2. Labeling Nodes\n",
|
| 225 |
-
"- **Consistency**: Utilize uniform labels for node types to maintain clarity.\n",
|
| 226 |
-
" - For instance, consistently label drugs as **\"Drug\"**, symptoms as **\"Symptom\"**, and treatments as **\"Treatment\"**.\n",
|
| 227 |
-
"- **Node IDs**: Apply descriptive, legible identifiers for node IDs, sourced directly from the text.\n",
|
| 228 |
-
"\n",
|
| 229 |
-
"{'- **Allowed Node Labels:**' + \", \".join(['Drug', 'Symptom', 'Treatment', 'MedicalCondition', 'ResearchStudy']) if allowed_nodes else \"\"}\n",
|
| 230 |
-
"{'- **Allowed Relationship Types**:' + \", \".join(['Treats', 'Causes', 'Researches', 'Recommends']) if allowed_rels else \"\"}\n",
|
| 231 |
-
"\n",
|
| 232 |
-
"## 3. Handling Numerical Data and Dates\n",
|
| 233 |
-
"- Integrate numerical data and dates as attributes of the corresponding nodes.\n",
|
| 234 |
-
"- **No Isolated Nodes for Dates/Numbers**: Directly associate dates and numerical figures as attributes with pertinent nodes.\n",
|
| 235 |
-
"- **Property Format**: Follow a straightforward key-value pattern for properties, with keys in camelCase, for example, `approvedYear`, `dosageAmount`.\n",
|
| 236 |
-
"\n",
|
| 237 |
-
"## 4. Coreference Resolution\n",
|
| 238 |
-
"- **Entity Consistency**: Guarantee uniform identification of each entity across the graph.\n",
|
| 239 |
-
" - For example, if \"Methotrexate\" and \"MTX\" reference the same medication, uniformly apply \"Methotrexate\" as the node ID.\n",
|
| 240 |
-
"\n",
|
| 241 |
-
"## 5. Relationship Naming Conventions\n",
|
| 242 |
-
"- **Clarity and Standardization**: Utilize clear and standardized relationship names, preferring uppercase with underscores for readability.\n",
|
| 243 |
-
" - For instance, use \"HAS_SIDE_EFFECT\" instead of \"HASSIDEEFFECT\", use \"CAN_RESULT_FROM\" instead of \"CANRESULTFROM\" etc.\n",
|
| 244 |
-
"- **Relevance and Specificity**: Choose relationship names that accurately reflect the connection between nodes, such as \"INHIBITS\" or \"ACTIVATES\" for interactions between substances.\n",
|
| 245 |
-
"\n",
|
| 246 |
-
"## 6. Strict Compliance\n",
|
| 247 |
-
"Rigorous adherence to these instructions is essential. Failure to comply with the specified formatting and labeling norms will necessitate output revision or discard.\n",
|
| 248 |
-
" \"\"\"),\n",
|
| 249 |
-
" (\"human\", \"Use the given format to extract information from the following input: {input}\"),\n",
|
| 250 |
-
" (\"human\", \"Tip: Precision in the node and relationship creation is vital for the integrity of the knowledge graph.\"),\n",
|
| 251 |
-
" ])\n",
|
| 252 |
-
" return create_structured_output_chain(KnowledgeGraph, llm, prompt, verbose=False)"
|
| 253 |
-
]
|
| 254 |
-
},
|
| 255 |
-
{
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| 256 |
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"cell_type": "code",
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| 257 |
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"execution_count": 18,
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| 258 |
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"metadata": {},
|
| 259 |
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"outputs": [],
|
| 260 |
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"source": [
|
| 261 |
-
"def extract_and_store_graph(\n",
|
| 262 |
-
" document: Document,\n",
|
| 263 |
-
" nodes:Optional[List[str]] = None,\n",
|
| 264 |
-
" rels:Optional[List[str]]=None) -> None:\n",
|
| 265 |
-
" # Extract graph data using OpenAI functions\n",
|
| 266 |
-
" extract_chain = get_extraction_chain(nodes, rels)\n",
|
| 267 |
-
" data = extract_chain.invoke(document.page_content)['function']\n",
|
| 268 |
-
" # Construct a graph document\n",
|
| 269 |
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" graph_document = GraphDocument(\n",
|
| 270 |
-
" nodes = [map_to_base_node(node) for node in data.nodes],\n",
|
| 271 |
-
" relationships = [map_to_base_relationship(rel) for rel in data.rels],\n",
|
| 272 |
-
" source = document\n",
|
| 273 |
-
" )\n",
|
| 274 |
-
" # Store information into a graph\n",
|
| 275 |
-
" graph.add_graph_documents([graph_document])"
|
| 276 |
-
]
|
| 277 |
-
},
|
| 278 |
-
{
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| 279 |
-
"cell_type": "code",
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| 280 |
-
"execution_count": 21,
|
| 281 |
-
"metadata": {},
|
| 282 |
-
"outputs": [],
|
| 283 |
-
"source": [
|
| 284 |
-
"from langchain.document_loaders import WikipediaLoader\n",
|
| 285 |
-
"from langchain.text_splitter import TokenTextSplitter\n",
|
| 286 |
-
"\n",
|
| 287 |
-
"# Read the wikipedia article\n",
|
| 288 |
-
"raw_documents = WikipediaLoader(query=\"Chemotherapy\").load()\n",
|
| 289 |
-
"# Define chunking strategy\n",
|
| 290 |
-
"text_splitter = TokenTextSplitter(chunk_size=4096, chunk_overlap=96)\n",
|
| 291 |
-
"\n",
|
| 292 |
-
"# Only take the first the raw_documents\n",
|
| 293 |
-
"documents = text_splitter.split_documents(raw_documents[:5])"
|
| 294 |
-
]
|
| 295 |
-
},
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"execution_count": 22,
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"outputs": [
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"text": [
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| 312 |
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"INFO:httpx:HTTP Request: POST https://api.openai.com/v1/chat/completions \"HTTP/1.1 200 OK\"\n"
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| 314 |
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| 326 |
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"INFO:httpx:HTTP Request: POST https://api.openai.com/v1/chat/completions \"HTTP/1.1 200 OK\"\n"
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| 331 |
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"text": [
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" 40%|████ | 2/5 [01:25<01:53, 37.82s/it]"
|
| 334 |
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|
| 335 |
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| 337 |
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"name": "stdout",
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| 338 |
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"output_type": "stream",
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| 339 |
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"text": [
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| 340 |
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"INFO:httpx:HTTP Request: POST https://api.openai.com/v1/chat/completions \"HTTP/1.1 200 OK\"\n"
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| 342 |
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},
|
| 343 |
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{
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| 344 |
-
"name": "stderr",
|
| 345 |
-
"output_type": "stream",
|
| 346 |
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"text": [
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| 347 |
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" 60%|██████ | 3/5 [01:33<00:48, 24.24s/it]"
|
| 348 |
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|
| 349 |
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},
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| 350 |
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| 351 |
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"name": "stdout",
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| 352 |
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"output_type": "stream",
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| 353 |
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"text": [
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| 354 |
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"INFO:httpx:HTTP Request: POST https://api.openai.com/v1/chat/completions \"HTTP/1.1 200 OK\"\n"
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| 356 |
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},
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| 357 |
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| 358 |
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"name": "stderr",
|
| 359 |
-
"output_type": "stream",
|
| 360 |
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"text": [
|
| 361 |
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" 80%|████████ | 4/5 [01:49<00:20, 20.99s/it]"
|
| 362 |
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]
|
| 363 |
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},
|
| 364 |
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{
|
| 365 |
-
"name": "stdout",
|
| 366 |
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"output_type": "stream",
|
| 367 |
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"text": [
|
| 368 |
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"INFO:httpx:HTTP Request: POST https://api.openai.com/v1/chat/completions \"HTTP/1.1 200 OK\"\n"
|
| 369 |
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]
|
| 370 |
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},
|
| 371 |
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{
|
| 372 |
-
"name": "stderr",
|
| 373 |
-
"output_type": "stream",
|
| 374 |
-
"text": [
|
| 375 |
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"100%|██████████| 5/5 [01:52<00:00, 22.58s/it]\n"
|
| 376 |
-
]
|
| 377 |
-
}
|
| 378 |
-
],
|
| 379 |
-
"source": [
|
| 380 |
-
"from tqdm import tqdm\n",
|
| 381 |
-
"\n",
|
| 382 |
-
"for i, d in tqdm(enumerate(documents), total=len(documents)):\n",
|
| 383 |
-
" extract_and_store_graph(d)"
|
| 384 |
-
]
|
| 385 |
-
},
|
| 386 |
-
{
|
| 387 |
-
"cell_type": "code",
|
| 388 |
-
"execution_count": 14,
|
| 389 |
-
"metadata": {},
|
| 390 |
-
"outputs": [],
|
| 391 |
-
"source": [
|
| 392 |
-
"# Query the knowledge graph in a RAG application\n",
|
| 393 |
-
"from langchain.chains import GraphCypherQAChain\n",
|
| 394 |
-
"\n",
|
| 395 |
-
"graph.refresh_schema()\n",
|
| 396 |
-
"\n",
|
| 397 |
-
"cypher_chain = GraphCypherQAChain.from_llm(\n",
|
| 398 |
-
" graph=graph,\n",
|
| 399 |
-
" cypher_llm=ChatOpenAI(temperature=0, model=\"gpt-4\"),\n",
|
| 400 |
-
" qa_llm=ChatOpenAI(temperature=0, model=\"gpt-3.5-turbo-16k\"),\n",
|
| 401 |
-
" validate_cypher=True, # Validate relationship directions\n",
|
| 402 |
-
" verbose=True\n",
|
| 403 |
-
")"
|
| 404 |
-
]
|
| 405 |
-
},
|
| 406 |
-
{
|
| 407 |
-
"cell_type": "code",
|
| 408 |
-
"execution_count": 23,
|
| 409 |
-
"metadata": {},
|
| 410 |
-
"outputs": [
|
| 411 |
-
{
|
| 412 |
-
"name": "stdout",
|
| 413 |
-
"output_type": "stream",
|
| 414 |
-
"text": [
|
| 415 |
-
"\n",
|
| 416 |
-
"\n",
|
| 417 |
-
"\u001b[1m> Entering new GraphCypherQAChain chain...\u001b[0m\n",
|
| 418 |
-
"INFO:httpx:HTTP Request: POST https://api.openai.com/v1/chat/completions \"HTTP/1.1 200 OK\"\n",
|
| 419 |
-
"Generated Cypher:\n",
|
| 420 |
-
"\u001b[32;1m\u001b[1;3mMATCH (c:Condition {name: \"Cancer\"})-[:CANRESULTFROM]->(t:Treatment) RETURN t.name\u001b[0m\n",
|
| 421 |
-
"Full Context:\n",
|
| 422 |
-
"\u001b[32;1m\u001b[1;3m[]\u001b[0m\n",
|
| 423 |
-
"INFO:httpx:HTTP Request: POST https://api.openai.com/v1/chat/completions \"HTTP/1.1 200 OK\"\n",
|
| 424 |
-
"\n",
|
| 425 |
-
"\u001b[1m> Finished chain.\u001b[0m\n"
|
| 426 |
-
]
|
| 427 |
-
},
|
| 428 |
-
{
|
| 429 |
-
"data": {
|
| 430 |
-
"text/plain": [
|
| 431 |
-
"{'query': 'What are the different treatment strategies for cancer?',\n",
|
| 432 |
-
" 'result': \"I'm sorry, but I don't have the information to answer that question.\"}"
|
| 433 |
-
]
|
| 434 |
-
},
|
| 435 |
-
"execution_count": 23,
|
| 436 |
-
"metadata": {},
|
| 437 |
-
"output_type": "execute_result"
|
| 438 |
-
}
|
| 439 |
-
],
|
| 440 |
-
"source": [
|
| 441 |
-
"cypher_chain.invoke({\"query\": \"What are the different treatment strategies for cancer?\"})"
|
| 442 |
-
]
|
| 443 |
-
},
|
| 444 |
-
{
|
| 445 |
-
"cell_type": "code",
|
| 446 |
-
"execution_count": null,
|
| 447 |
-
"metadata": {},
|
| 448 |
-
"outputs": [],
|
| 449 |
-
"source": []
|
| 450 |
-
}
|
| 451 |
-
],
|
| 452 |
-
"metadata": {
|
| 453 |
-
"kernelspec": {
|
| 454 |
-
"display_name": "my_project_env",
|
| 455 |
-
"language": "python",
|
| 456 |
-
"name": "python3"
|
| 457 |
-
},
|
| 458 |
-
"language_info": {
|
| 459 |
-
"codemirror_mode": {
|
| 460 |
-
"name": "ipython",
|
| 461 |
-
"version": 3
|
| 462 |
-
},
|
| 463 |
-
"file_extension": ".py",
|
| 464 |
-
"mimetype": "text/x-python",
|
| 465 |
-
"name": "python",
|
| 466 |
-
"nbconvert_exporter": "python",
|
| 467 |
-
"pygments_lexer": "ipython3",
|
| 468 |
-
"version": "3.9.19"
|
| 469 |
-
}
|
| 470 |
-
},
|
| 471 |
-
"nbformat": 4,
|
| 472 |
-
"nbformat_minor": 2
|
| 473 |
-
}
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