Last active
October 26, 2024 16:13
-
-
Save wware/4c9b2ea74f02b68c1ffa00b3a2d49b9a to your computer and use it in GitHub Desktop.
Revisions
-
wware revised this gist
Oct 26, 2024 . 1 changed file with 306 additions and 0 deletions.There are no files selected for viewing
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters. Learn more about bidirectional Unicode charactersOriginal file line number Diff line number Diff line change @@ -1617,3 +1617,309 @@ Would you like me to: 3. Add support for multiple external endpoints? 4. Or explore another aspect of semantic integration? ## Prompt: What are some of the currently available Linked Data resources one can find online? What kind of information do they provide? ## Response: Let me break down the major Linked Data resources available online and their key offerings: 1. General Knowledge Bases: DBpedia: * Structured data extracted from Wikipedia * Covers virtually all Wikipedia topics * Multiple language editions * Regular updates from Wikipedia * Excellent for general knowledge queries * SPARQL endpoint: [https://dbpedia.org/sparql](https://dbpedia.org/sparql) Wikidata: * Collaborative knowledge base by Wikimedia * More structured than DBpedia * Contains uniquely identified entities * Strong cross-language support * Highly active community maintenance * SPARQL endpoint: [https://query.wikidata.org/](https://query.wikidata.org/) 2. Scientific and Academic: Bio2RDF: * Large collection of biological/biomedical datasets * Includes GenBank, KEGG, DrugBank * Valuable for life sciences research * Links between different biological databases LinkedCT: * Clinical trials data * Detailed medical study information * Connected to other healthcare resources DBLP (as Linked Data): * Computer science bibliography * Academic publication metadata * Author networks and collaborations 3. Government and Geographic: GeoNames: * Worldwide geographical database * Place names in multiple languages * Hierarchical relationships * Population data * Geographical coordinates LinkedGeoData: * OpenStreetMap as linked data * Detailed geographic features * Points of interest * Infrastructure data UK Government Linked Data: * Official UK government statistics * Public sector information * Legislative data * Companies House data 4. Cultural and Media: Europeana: * European cultural heritage * Digital artifacts from museums * Historical documents * Artwork metadata * Cultural institution information BBC Things: * Media-related entities * Program information * Music and artist data * News topic categorization 5. Scientific Disciplines: ChEMBL RDF: * Bioactive molecules * Drug-like compounds * Binding and activity data * Pharmaceutical research data UniProt: * Protein sequence and annotation data * Functional information * Scientific literature references * Cross-references to other databases 6. Linguistic Resources: BabelNet: * Multilingual lexical database * Word senses and meanings * Translations and definitions * Semantic relationships Lexvo: * Language-related data * Information about languages * Writing systems * Geographical language usage 7. Libraries and Publications: WorldCat (as Linked Data): * Library catalog information * Book metadata * Author information * Publication details CrossRef: * Academic citation metadata * DOI resolution * Publication relationships * Author identifiers Practical example of combining multiple sources: #### Multi-Source Linked Data Query Example ``` from SPARQLWrapper import SPARQLWrapper, JSON from typing import Dict, List import json class LinkedDataExplorer: def __init__(self): self.endpoints = { 'dbpedia': SPARQLWrapper('https://dbpedia.org/sparql'), 'wikidata': SPARQLWrapper('https://query.wikidata.org/sparql'), 'geonames': SPARQLWrapper('http://factforge.net/repositories/geonames') } for endpoint in self.endpoints.values(): endpoint.setReturnFormat(JSON) def explore_scientist(self, scientist_name: str) -> Dict: """ Gather information about a scientist from multiple sources """ results = {} # DBpedia query for basic info and publications dbpedia_query = f""" SELECT DISTINCT ?abstract ?field ?publication WHERE {{ ?person rdfs:label "{scientist_name}"@en ; dbo:abstract ?abstract ; dbo:field ?field . OPTIONAL {{ ?person dbo:notableWork ?publication }} FILTER(LANG(?abstract) = 'en') }} """ self.endpoints['dbpedia'].setQuery(dbpedia_query) results['dbpedia'] = self.endpoints['dbpedia'].query().convert() # Wikidata query for awards and institutions wikidata_query = f""" SELECT ?award ?institution WHERE {{ ?person wdt:P31 wd:Q5 ; # is a human rdfs:label "{scientist_name}"@en . OPTIONAL {{ ?person wdt:P166 ?award }} # awards received OPTIONAL {{ ?person wdt:P108 ?institution }} # employer/institution }} """ self.endpoints['wikidata'].setQuery(wikidata_query) results['wikidata'] = self.endpoints['wikidata'].query().convert() return self._process_results(results) def explore_location(self, place_name: str) -> Dict: """ Gather geographic and cultural information about a location """ results = {} # GeoNames query for geographic data geonames_query = f""" SELECT ?lat ?long ?population ?country WHERE {{ ?place gn:name "{place_name}" ; wgs84_pos:lat ?lat ; wgs84_pos:long ?long . OPTIONAL {{ ?place gn:population ?population }} OPTIONAL {{ ?place gn:parentCountry ?country }} }} """ self.endpoints['geonames'].setQuery(geonames_query) results['geonames'] = self.endpoints['geonames'].query().convert() # DBpedia query for cultural and historical information dbpedia_query = f""" SELECT ?abstract ?landmark ?event WHERE {{ ?place rdfs:label "{place_name}"@en ; dbo:abstract ?abstract . OPTIONAL {{ ?landmark dbo:location ?place }} OPTIONAL {{ ?event dbo:place ?place ; a dbo:HistoricalEvent }} FILTER(LANG(?abstract) = 'en') }} """ self.endpoints['dbpedia'].setQuery(dbpedia_query) results['dbpedia'] = self.endpoints['dbpedia'].query().convert() return self._process_results(results) def explore_drug(self, drug_name: str) -> Dict: """ Gather pharmaceutical and chemical information about a drug """ # Example combining DrugBank and ChEMBL data chembl_query = f""" SELECT ?molecule ?mechanism ?target WHERE {{ ?drug rdfs:label "{drug_name}"@en ; chembl:mechanismOfAction ?mechanism ; chembl:hasTarget ?target ; chembl:molecularFormula ?molecule . }} """ # Note: This is a simplified example. Real implementation would need # appropriate endpoint URLs and authentication def _process_results(self, results: Dict) -> Dict: """Process and clean up SPARQL results""" processed = {} for source, data in results.items(): if 'results' in data and 'bindings' in data['results']: processed[source] = [ {k: v['value'] for k, v in binding.items()} for binding in data['results']['bindings'] ] return processed def main(): explorer = LinkedDataExplorer() # Example: Explore information about Marie Curie scientist_info = explorer.explore_scientist("Marie Curie") print(json.dumps(scientist_info, indent=2)) # Example: Explore information about Paris location_info = explorer.explore_location("Paris") print(json.dumps(location_info, indent=2)) if __name__ == "__main__": main() ``` Some key considerations when working with these resources: 1. Availability and Reliability: * Some endpoints may be occasionally down * Query timeouts are common * Rate limiting may apply * Consider caching frequently accessed data 2. Data Quality: * Varies between sources * May need validation * Updates can be irregular * Inconsistencies between sources 3. Integration Challenges: * Different ontologies * Varying data models * Entity resolution needed * Performance considerations 4. Best Practices: * Use federation when possible * Implement proper error handling * Cache frequently accessed data * Consider local copies of essential datasets Would you like me to: 1. Show how to implement specific queries for any of these sources? 2. Demonstrate integration patterns for combining multiple sources? 3. Explain how to handle common challenges with these resources? 4. Or explore a specific domain or use case? -
wware revised this gist
Oct 26, 2024 . 1 changed file with 691 additions and 0 deletions.There are no files selected for viewing
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters. Learn more about bidirectional Unicode charactersOriginal file line number Diff line number Diff line change @@ -926,3 +926,694 @@ Would you like me to show you how to extend this with more advanced features lik * Relationship-aware querying * Hybrid search (combining vector and graph traversal) * Or something else specific to your use case? ## Prompt: Let's suppose I wanted to exploit Linked Data resources such as DBPedia. Would that require me to use an RDF-based database? If so, which would you recommend, and how would it change the approach you've outlined above? ## Response: This is a great question that touches on an important architectural decision in knowledge graph systems. Let me break this down: 1. You don't strictly _need_ an RDF database to work with DBpedia/Linked Data, but there are significant advantages to using one: Advantages of RDF stores: * Native SPARQL support for querying DBpedia * Direct import of RDF data without transformation * Standardized reasoning capabilities * Better alignment with Semantic Web standards * Easier federation with other SPARQL endpoints The main RDF-native options I'd recommend considering are: 1. GraphDB (by Ontotext): * Excellent SPARQL support * Built-in reasoning * Vector search capabilities * Good documentation * Free tier available 2. Stardog: * Enterprise-grade knowledge graph platform * Strong reasoning capabilities * Built-in vector search * SPARQL and GraphQL support * Good cloud offerings 3. Apache Jena + Fuseki: * Open source * Good standards compliance * Lighter weight * More DIY approach Let me show you how the implementation would change using GraphDB as an example: #### RDF-based RAG Application using GraphDB ``` import os from typing import List, Dict from dotenv import load_dotenv from llama_index import ServiceContext, VectorStoreIndex from llama_index.llms import Groq from llama_index.embeddings.huggingface import HuggingFaceEmbedding from llama_index.schema import Document from rdflib import Graph, URIRef, Literal, Namespace from rdflib.namespace import RDF, RDFS, XSD from SPARQLWrapper import SPARQLWrapper, JSON class RDFGraphRAGSystem: def __init__(self): # Initialize GraphDB connection self.graphdb_url = os.getenv("GRAPHDB_URL", "http://graphdb:7200") self.repository = os.getenv("GRAPHDB_REPOSITORY", "rag-knowledge-graph") self.sparql_endpoint = f"{self.graphdb_url}/repositories/{self.repository}" # Initialize Groq self.groq_api_key = os.getenv("GROQ_API_KEY") self.llm = Groq( api_key=self.groq_api_key, model_name="mixtral-8x7b-32768" ) # Initialize SPARQL wrapper self.sparql = SPARQLWrapper(self.sparql_endpoint) self.sparql.setReturnFormat(JSON) # Define namespaces self.kg = Namespace("http://example.org/kg/") self.schema = Namespace("http://schema.org/") # Initialize embedding model self.embed_model = HuggingFaceEmbedding( model_name="sentence-transformers/all-MiniLM-L6-v2" ) # Create service context self.service_context = ServiceContext.from_defaults( llm=self.llm, embed_model=self.embed_model ) def query_dbpedia(self, entity_uri: str) -> Dict: """ Query DBpedia for information about an entity """ query = f""" CONSTRUCT {{ <{entity_uri}> ?p ?o . ?o ?p2 ?o2 . }} WHERE {{ <{entity_uri}> ?p ?o . OPTIONAL {{ ?o ?p2 ?o2 }} }} """ self.sparql.setQuery(query) results = self.sparql.queryAndConvert() return results def add_document_with_entities(self, text: str, entities: List[Dict[str, str]]) -> None: """ Add a document and link it to DBpedia entities """ # Create embedded representation embedding = self.embed_model.get_text_embedding(text) # Create SPARQL INSERT insert_query = f""" PREFIX kg: <http://example.org/kg/> PREFIX schema: <http://schema.org/> PREFIX vec: <http://example.org/vec/> INSERT DATA {{ kg:doc_{hash(text)} a schema:Article ; schema:text "{text}" ; vec:embedding "{','.join(map(str, embedding))}" . {' '.join(f''' kg:doc_{hash(text)} schema:mentions <{entity['uri']}> . ''' for entity in entities)} }} """ self.sparql.setQuery(insert_query) self.sparql.method = 'POST' self.sparql.query() def hybrid_query(self, question: str, max_results: int = 5) -> str: """ Perform hybrid search combining vector similarity and graph patterns """ # Get question embedding question_embedding = self.embed_model.get_text_embedding(question) # Construct hybrid SPARQL query query = f""" PREFIX vec: <http://example.org/vec/> PREFIX schema: <http://schema.org/> SELECT ?doc ?text ?similarity ?entity ?entityLabel WHERE {{ ?doc schema:text ?text ; vec:embedding ?embedding . # Vector similarity calculation BIND(vec:cosine-similarity(?embedding, "{','.join(map(str, question_embedding))}") AS ?similarity) # Optional entity connections OPTIONAL {{ ?doc schema:mentions ?entity . ?entity rdfs:label ?entityLabel . }} }} ORDER BY DESC(?similarity) LIMIT {max_results} """ self.sparql.setQuery(query) results = self.sparql.queryAndConvert() # Process results and generate response using Groq context = self._process_sparql_results(results) response = self.llm.complete(f""" Context: {context} Question: {question} Answer based on the context provided above: """) return response.text def _process_sparql_results(self, results: Dict) -> str: """Process SPARQL results into a context string""" context_parts = [] for result in results['results']['bindings']: text = result['text']['value'] if 'entityLabel' in result: entity = result['entityLabel']['value'] context_parts.append(f"{text} [Related to: {entity}]") else: context_parts.append(text) return "\n\n".join(context_parts) def main(): # Initialize the system rag_system = RDFGraphRAGSystem() # Example: Add a document about Berlin with DBpedia entities doc_text = "Berlin is the capital and largest city of Germany." entities = [ { "uri": "http://dbpedia.org/resource/Berlin", "label": "Berlin" }, { "uri": "http://dbpedia.org/resource/Germany", "label": "Germany" } ] rag_system.add_document_with_entities(doc_text, entities) # Example query response = rag_system.hybrid_query( "What is the largest city in Germany?" ) print(f"Response: {response}") if __name__ == "__main__": main() ``` And here's the corresponding Docker Compose configuration: #### Docker Compose for RDF-based RAG System ``` version: '3.8' services: graphdb: image: ontotext/graphdb:10.0.0 container_name: graphdb ports: - "7200:7200" environment: - GDB_HEAP_SIZE=2g - GDB_MIN_MEM=1g - GDB_MAX_MEM=2g volumes: - graphdb_data:/opt/graphdb/home - graphdb_work:/opt/graphdb/work networks: - rag-network rag-service: build: context: . dockerfile: Dockerfile container_name: rag-service depends_on: - graphdb environment: - GRAPHDB_URL=http://graphdb:7200 - GRAPHDB_REPOSITORY=rag-knowledge-graph - GROQ_API_KEY=your_groq_api_key_here volumes: - ./app:/app networks: - rag-network networks: rag-network: driver: bridge volumes: graphdb_data: graphdb_work: ``` Key differences from the Neo4j approach: 1. Data Model: * Uses RDF triples instead of property graphs * Native support for URIs and linked data * Built-in support for ontologies and reasoning 2. Query Language: * SPARQL instead of Cypher * More standardized across different RDF stores * Better support for federation and semantic queries 3. Entity Linking: * Direct integration with DBpedia and other LOD resources * Easier to maintain links to external knowledge bases * Better support for ontology alignment 4. Vector Search: * Implementation varies by triple store * GraphDB and Stardog have built-in vector capabilities * May need additional configuration for hybrid search The main trade-offs are: Advantages: * Better integration with Linked Open Data * Standardized querying with SPARQL * Strong reasoning capabilities * Better semantic interoperability Disadvantages: * Steeper learning curve * Generally more complex queries * Fewer RAG-specific integrations * May require more custom code Would you like me to elaborate on any of these aspects or show how to implement specific features like: 1. Federation with DBpedia's SPARQL endpoint 2. Ontology-aware querying 3. Reasoning-enhanced RAG 4. Or something else specific to RDF-based systems? ## Prompt: All those topics interest me. Let's start with DBPedia federation. Suppose I have a Jena/Fuseki instance containing a graph. I've used OWL things to identify entities as same-as things in the DBPedia world, in order to ground stuff. Now I want to be able to write SPARQL queries that pull in a mix of my own graph stuff and the stuff in DBPedia. Can you show me an example of how that would be accomplished in the context of a RAG system? I think this would blend pretty naturally into both ontology-aware querying and reasoning-enhancing RAG. ## Response: I'll create an example that shows how to build a RAG system that leverages both local knowledge and DBPedia through federation, while taking advantage of OWL semantics and reasoning. #### Federated RDF RAG System with Reasoning ``` from typing import List, Dict, Optional import os from dotenv import load_dotenv from rdflib import Graph, URIRef, Literal, Namespace, OWL, RDFS, RDF from rdflib.plugins.sparql import prepareQuery from SPARQLWrapper import SPARQLWrapper, JSON from llama_index import ServiceContext from llama_index.llms import Groq from llama_index.embeddings.huggingface import HuggingFaceEmbedding class FederatedRDFRagSystem: def __init__(self): # Initialize connections and namespaces self.fuseki_url = os.getenv("FUSEKI_URL", "http://fuseki:3030") self.dataset = os.getenv("FUSEKI_DATASET", "rag-kg") self.sparql_endpoint = f"{self.fuseki_url}/{self.dataset}/query" self.update_endpoint = f"{self.fuseki_url}/{self.dataset}/update" # DBPedia SPARQL endpoint self.dbpedia_endpoint = "http://dbpedia.org/sparql" # Initialize SPARQL wrappers self.local_sparql = SPARQLWrapper(self.sparql_endpoint) self.local_sparql.setReturnFormat(JSON) self.dbpedia_sparql = SPARQLWrapper(self.dbpedia_endpoint) self.dbpedia_sparql.setReturnFormat(JSON) # Initialize namespaces self.local = Namespace("http://example.org/local/") self.dbo = Namespace("http://dbpedia.org/ontology/") self.dbr = Namespace("http://dbpedia.org/resource/") # Initialize LLM and embedding model self.llm = Groq( api_key=os.getenv("GROQ_API_KEY"), model_name="mixtral-8x7b-32768" ) self.embed_model = HuggingFaceEmbedding( model_name="sentence-transformers/all-MiniLM-L6-v2" ) def add_entity_with_dbpedia_linking( self, local_uri: str, dbpedia_uri: str, properties: Dict[str, str], type_uri: Optional[str] = None ) -> None: """ Add an entity to the local graph and link it to DBpedia """ update_query = f""" PREFIX owl: <http://www.w3.org/2002/07/owl#> PREFIX local: <http://example.org/local/> PREFIX rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#> INSERT DATA {{ <{local_uri}> owl:sameAs <{dbpedia_uri}> . {f'<{local_uri}> rdf:type <{type_uri}> .' if type_uri else ''} {' '.join(f'<{local_uri}> <{pred}> "{obj}" .' for pred, obj in properties.items())} }} """ self.local_sparql.setQuery(update_query) self.local_sparql.method = 'POST' self.local_sparql.query() def federated_entity_query(self, local_uri: str) -> Dict: """ Query both local and DBpedia data for an entity """ query = f""" PREFIX owl: <http://www.w3.org/2002/07/owl#> PREFIX rdfs: <http://www.w3.org/2000/01/rdf-schema#> PREFIX dbo: <http://dbpedia.org/ontology/> SELECT DISTINCT ?property ?value ?dbpedia_property ?dbpedia_value WHERE {{ # Local graph pattern <{local_uri}> ?property ?value . # DBpedia federation SERVICE <{self.dbpedia_endpoint}> {{ ?dbpedia_uri owl:sameAs <{local_uri}> . ?dbpedia_uri ?dbpedia_property ?dbpedia_value . # Filter relevant DBpedia properties FILTER(STRSTARTS(STR(?dbpedia_property), STR(dbo:))) }} }} """ self.local_sparql.setQuery(query) results = self.local_sparql.queryAndConvert() return results def reasoning_enhanced_query(self, question: str) -> str: """ Perform a query that leverages OWL reasoning and federation """ # First, get question embedding question_embedding = self.embed_model.get_text_embedding(question) # Complex federated query with reasoning query = f""" PREFIX vec: <http://example.org/vec/> PREFIX owl: <http://www.w3.org/2002/07/owl#> PREFIX rdfs: <http://www.w3.org/2000/01/rdf-schema#> PREFIX rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#> PREFIX dbo: <http://dbpedia.org/ontology/> SELECT DISTINCT ?entity ?localProp ?localVal ?dbProp ?dbVal ?type ?superType WHERE {{ # Local graph patterns with vector similarity ?doc vec:embedding ?embedding ; rdfs:seeAlso ?entity . # Vector similarity calculation BIND(vec:cosine-similarity(?embedding, "{','.join(map(str, question_embedding))}") AS ?similarity) # Get local properties ?entity ?localProp ?localVal . # Get entity type and supertype through reasoning ?entity rdf:type ?type . OPTIONAL {{ ?type rdfs:subClassOf ?superType }} # Federation with DBpedia SERVICE <{self.dbpedia_endpoint}> {{ ?dbpedia_entity owl:sameAs ?entity ; ?dbProp ?dbVal . # Filter for relevant DBpedia properties FILTER(STRSTARTS(STR(?dbProp), STR(dbo:))) }} }} ORDER BY DESC(?similarity) LIMIT 5 """ self.local_sparql.setQuery(query) results = self.local_sparql.queryAndConvert() # Process results into context context = self._process_reasoning_results(results) # Generate response using Groq prompt = f""" Given the following context that combines local knowledge and DBpedia information: {context} Question: {question} Please provide a comprehensive answer that integrates both local and DBpedia knowledge. Consider the hierarchical relationships (subtypes/supertypes) when relevant. Answer: """ response = self.llm.complete(prompt) return response.text def _process_reasoning_results(self, results: Dict) -> str: """ Process SPARQL results into a structured context """ context_parts = [] current_entity = None entity_info = {} for binding in results['results']['bindings']: entity = binding['entity']['value'] if entity != current_entity: if current_entity and entity_info: context_parts.append(self._format_entity_info(entity_info)) current_entity = entity entity_info = { 'uri': entity, 'local_props': {}, 'dbpedia_props': {}, 'types': set(), 'supertypes': set() } if 'localProp' in binding: prop = binding['localProp']['value'] val = binding['localVal']['value'] entity_info['local_props'][prop] = val if 'dbProp' in binding: prop = binding['dbProp']['value'] val = binding['dbVal']['value'] entity_info['dbpedia_props'][prop] = val if 'type' in binding: entity_info['types'].add(binding['type']['value']) if 'superType' in binding and binding['superType']['value']: entity_info['supertypes'].add(binding['superType']['value']) if current_entity and entity_info: context_parts.append(self._format_entity_info(entity_info)) return "\n\n".join(context_parts) def _format_entity_info(self, info: Dict) -> str: """Format entity information into readable text""" parts = [f"Entity: {info['uri'].split('/')[-1]}"] if info['types']: types_str = ', '.join(t.split('/')[-1] for t in info['types']) parts.append(f"Types: {types_str}") if info['supertypes']: supertypes_str = ', '.join(t.split('/')[-1] for t in info['supertypes']) parts.append(f"Supertypes: {supertypes_str}") if info['local_props']: parts.append("Local Properties:") for prop, val in info['local_props'].items(): prop_name = prop.split('/')[-1] parts.append(f" - {prop_name}: {val}") if info['dbpedia_props']: parts.append("DBpedia Properties:") for prop, val in info['dbpedia_props'].items(): prop_name = prop.split('/')[-1] parts.append(f" - {prop_name}: {val}") return "\n".join(parts) def main(): # Initialize system rag_system = FederatedRDFRagSystem() # Example: Add a local researcher entity linked to DBpedia rag_system.add_entity_with_dbpedia_linking( local_uri="http://example.org/local/researcher/ada_lovelace", dbpedia_uri="http://dbpedia.org/resource/Ada_Lovelace", properties={ "http://example.org/local/department": "Computer Science", "http://example.org/local/research_area": "Mathematical Logic" }, type_uri="http://example.org/local/Researcher" ) # Example query response = rag_system.reasoning_enhanced_query( "What were Ada Lovelace's contributions to computer science and what department does she work in?" ) print(f"Response: {response}") if __name__ == "__main__": main() ``` This example demonstrates several key concepts: 1. Federation: * Uses SERVICE keyword to query DBpedia * Combines local and DBpedia properties in single queries * Handles owl:sameAs relationships for entity alignment 2. Reasoning: * Incorporates type hierarchies (rdfs:subClassOf) * Uses OWL semantics for entity equivalence * Can be extended with custom inference rules 3. Knowledge Integration: * Merges local institutional knowledge with DBpedia facts * Maintains separate provenance for local vs DBpedia data * Handles potential conflicts between sources 4. RAG Enhancement: * Uses semantic types to improve context selection * Leverages hierarchical relationships for better understanding * Combines vector similarity with semantic relations To use this with Apache Jena/Fuseki, you'd need this Docker configuration: #### Docker Compose for Jena/Fuseki RAG System ``` version: '3.8' services: fuseki: image: stain/jena-fuseki container_name: fuseki environment: - ADMIN_PASSWORD=admin123 - JVM_ARGS=-Xmx4g ports: - "3030:3030" volumes: - fuseki_data:/fuseki - ./config:/fuseki/configuration - ./ontologies:/fuseki/ontologies networks: - rag-network rag-service: build: context: . dockerfile: Dockerfile container_name: rag-service depends_on: - fuseki environment: - FUSEKI_URL=http://fuseki:3030 - FUSEKI_DATASET=rag-kg - GROQ_API_KEY=your_groq_api_key_here volumes: - ./app:/app networks: - rag-network networks: rag-network: driver: bridge volumes: fuseki_data: ``` Some key points about this approach: 1. Performance Considerations: * Federation can be slow for large result sets * Consider caching frequently accessed DBpedia data * Use selective SERVICE patterns 2. Reliability: * DBpedia endpoint may have timeout issues * Add error handling for federation failures * Consider local mirrors for critical data 3. Schema Alignment: * Use ontology mappings for property alignment * Consider using SKOS for concept mapping * Handle different naming conventions Would you like me to: 1. Show how to add custom inference rules? 2. Demonstrate more complex ontology-aware querying? 3. Add support for multiple external endpoints? 4. Or explore another aspect of semantic integration? -
wware revised this gist
Oct 25, 2024 . 1 changed file with 84 additions and 28 deletions.There are no files selected for viewing
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters. Learn more about bidirectional Unicode charactersOriginal file line number Diff line number Diff line change @@ -342,36 +342,92 @@ Would you like me to: It sounds like neo4j is the de facto standard graph database for graph rag applications, is that right? Are any other graph Dbs in common usage? ## Response: While Neo4j is very popular for graph RAG applications, it's not the only option. Here's a comprehensive overview: 1. Neo4j's dominance in graph RAG comes from several factors: * Mature vector search capabilities and GDS (Graph Data Science) library * Strong integration with major RAG frameworks (LlamaIndex, LangChain) * APOC library for extended functionality * Cypher query language which is relatively intuitive * Large community and extensive documentation * Production-proven at scale 2. Other significant graph databases used for RAG: TigerGraph: * Known for excellent performance with large-scale graphs * Has machine learning workbench and built-in algorithms * GSQL query language * Native vector search capabilities * Growing integration with RAG frameworks Amazon Neptune: * Fully managed graph service * Supports both property graphs (via openCypher) and RDF (via SPARQL) * Vector search capabilities through Neptune ML * Good integration with AWS AI/ML services * Popular for enterprises already in AWS ecosystem ArangoDB: * Multi-model database (graph, document, key-value) * Native vector search support * AQL query language * Known for flexibility and performance * Growing adoption in RAG applications Redis Graph (now EOL) + RediSearch: * While RedisGraph is being sunset, Redis with RediSearch/RedisVector provides graph-like capabilities * Very fast for certain use cases * Good for real-time applications * Often used in hybrid architectures DGraph: * Built for distributed systems * GraphQL-like query language * Built-in vector search * Strong performance characteristics * Growing in popularity for RAG Azure Cosmos DB (with Gremlin API): * Microsoft's multi-model database * Good integration with Azure AI services * Supports Apache TinkerPop/Gremlin * Popular in Microsoft-centric environments The choice often depends on: 1. Scale requirements 2. Existing infrastructure 3. Query language preference 4. Need for managed vs self-hosted 5. Vector search requirements 6. Budget considerations 7. Team expertise Neo4j is popular for RAG not necessarily because it's technically superior in all cases, but because: 1. It has the most mature integrations with popular RAG frameworks 2. Extensive documentation and examples exist 3. The development experience is generally good 4. The community is large and active 5. The free tier is generous for experimentation For someone starting with graph RAG today, I would suggest: * Neo4j if you want the most straightforward path with best documentation * TigerGraph if you need enterprise-scale performance * ArangoDB if you want flexibility of multiple models * Neptune if you're already heavily invested in AWS * Cosmos DB if you're in the Azure ecosystem Would you like me to elaborate on any particular database or provide code examples showing how the implementations might differ between them? ## Prompt: Is neo4j available as a docker image? If so, what docker-run options are typically used with it? -
wware revised this gist
Oct 25, 2024 . 1 changed file with 1 addition and 1 deletion.There are no files selected for viewing
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters. Learn more about bidirectional Unicode charactersOriginal file line number Diff line number Diff line change @@ -1,4 +1,4 @@ # Graph RAG information (Neo4J, LlamaIndex, Groq API) *What follows is a conversation I had with Anthropic's https://claude.ai/ LLM, asking it questions about how Graph RAG works in as much detail as I could think of. When I think of graph databases, I normally think RDF, but the generally -
wware revised this gist
Oct 25, 2024 . 1 changed file with 1 addition and 1 deletion.There are no files selected for viewing
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters. Learn more about bidirectional Unicode charactersOriginal file line number Diff line number Diff line change @@ -117,7 +117,7 @@ Is neo4j a triple store? ## Response: No, Neo4j is not a triple store, though there are some important similarities and differences worth exploring.  Key differences between Neo4j (a property graph database) and triple stores: -
wware revised this gist
Oct 25, 2024 . 1 changed file with 71 additions and 7 deletions.There are no files selected for viewing
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters. Learn more about bidirectional Unicode charactersOriginal file line number Diff line number Diff line change @@ -117,9 +117,7 @@ Is neo4j a triple store? ## Response: No, Neo4j is not a triple store, though there are some important similarities and differences worth exploring.  Key differences between Neo4j (a property graph database) and triple stores: @@ -346,9 +344,10 @@ It sounds like neo4j is the de facto standard graph database for graph rag appli ## Response: Neo4j is very popular for graph RAG applications, but there are several other significant players in this space. Let me break this down. #### Graph Databases in RAG Applications *There was a document here showing some different databases but somehow the document got corrupted so this information was lost.* Some key observations about the current landscape: @@ -380,9 +379,74 @@ Is neo4j available as a docker image? If so, what docker-run options are typical ## Response: Yes, Neo4j is available as a Docker image. Let me show you the typical Docker setup. #### Neo4j Docker Configuration ``` # Basic docker run command docker run \ --name neo4j \ -p 7474:7474 -p 7687:7687 \ -v $HOME/neo4j/data:/data \ -v $HOME/neo4j/logs:/logs \ -v $HOME/neo4j/import:/var/lib/neo4j/import \ -v $HOME/neo4j/plugins:/plugins \ --env NEO4J_AUTH=neo4j/password123 \ --env NEO4J_ACCEPT_LICENSE_AGREEMENT=yes \ neo4j:5.13.0-enterprise # Docker Compose file for more complete setup version: '3' services: neo4j: image: neo4j:5.13.0-enterprise container_name: neo4j ports: - "7474:7474" # HTTP - "7687:7687" # Bolt - "7473:7473" # HTTPS volumes: - ./data:/data - ./logs:/logs - ./import:/var/lib/neo4j/import - ./plugins:/plugins - ./conf:/conf environment: # Authentication - NEO4J_AUTH=neo4j/password123 - NEO4J_ACCEPT_LICENSE_AGREEMENT=yes # Memory Configuration - NEO4J_server_memory_heap_initial__size=2G - NEO4J_server_memory_heap_max__size=2G - NEO4J_server_memory_pagecache_size=1G # Connection Configuration - NEO4J_server_default__listen__address=0.0.0.0 - NEO4J_server_bolt_advertised__address=:7687 - NEO4J_server_http_advertised__address=:7474 # APOC Configuration - NEO4J_dbms_security_procedures_unrestricted=apoc.*,gds.* - NEO4J_dbms_security_procedures_allowlist=apoc.*,gds.* # GDS Configuration - NEO4J_gds_enterprise_license__file=/conf/gds.license # Logging - NEO4J_dbms_logs_debug_level=INFO ulimits: nofile: soft: 40000 hard: 40000 restart: unless-stopped networks: - neo4j_network networks: neo4j_network: driver: bridge ``` Let me explain the key components: -
wware revised this gist
Oct 25, 2024 . 1 changed file with 1 addition and 1 deletion.There are no files selected for viewing
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters. Learn more about bidirectional Unicode charactersOriginal file line number Diff line number Diff line change @@ -170,7 +170,7 @@ OWL can express set theoretic ideas and other useful info about your entities, s ## Response: Yes, property graphs can capture semantic information through Property Graph Schema (PGS) and Graph Data Science (GDS) capabilities, though it's structured differently from OWL.  Here are the key ways property graphs can express domain knowledge: -
wware revised this gist
Oct 25, 2024 . 2 changed files with 2 additions and 4 deletions.There are no files selected for viewing
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters. Learn more about bidirectional Unicode charactersOriginal file line number Diff line number Diff line change @@ -170,9 +170,7 @@ OWL can express set theoretic ideas and other useful info about your entities, s ## Response: Yes, property graphs can capture semantic information through Property Graph Schema (PGS) and Graph Data Science (GDS) capabilities, though it's structured differently from OWL.  Here are the key ways property graphs can express domain knowledge: @@ -807,4 +805,4 @@ Would you like me to show you how to extend this with more advanced features lik * Custom query templates * Relationship-aware querying * Hybrid search (combining vector and graph traversal) * Or something else specific to your use case? LoadingSorry, something went wrong. Reload?Sorry, we cannot display this file.Sorry, this file is invalid so it cannot be displayed. -
wware revised this gist
Oct 25, 2024 . 1 changed file with 217 additions and 1 deletion.There are no files selected for viewing
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters. Learn more about bidirectional Unicode charactersOriginal file line number Diff line number Diff line change @@ -591,4 +591,220 @@ docker-compose up -d * Neo4j Bolt: bolt://localhost:7687 * Your RAG service will run inside its container and can communicate with Neo4j using the internal network Would you like me to show you how to modify the Python code you provided to work with this Docker setup, or would you like to see how to configure environment variables for better security? ## Prompt: Please show me what a simple application would look like in Python, using LlamaIndex to access the Groq API, in a system like the one described above. ## Response: I'll create a simple application that demonstrates using LlamaIndex with Groq and Neo4j for graph-based RAG. #### Graph RAG Application using LlamaIndex, Groq, and Neo4j ``` import os from typing import List, Dict from dotenv import load_dotenv from llama_index import ServiceContext, VectorStoreIndex from llama_index.llms import Groq from llama_index.vector_stores.neo4j import Neo4jVectorStore from llama_index.embeddings.huggingface import HuggingFaceEmbedding from llama_index.schema import Document from neo4j import GraphDatabase # Load environment variables load_dotenv() class GraphRAGSystem: def __init__(self): # Initialize Neo4j connection self.neo4j_uri = os.getenv("NEO4J_URI", "bolt://neo4j:7687") self.neo4j_user = os.getenv("NEO4J_USER", "neo4j") self.neo4j_password = os.getenv("NEO4J_PASSWORD") # Initialize Groq self.groq_api_key = os.getenv("GROQ_API_KEY") # Set up LlamaIndex components self.llm = Groq( api_key=self.groq_api_key, model_name="mixtral-8x7b-32768" # or "llama2-70b-4096" ) # Use HuggingFace embeddings (all-MiniLM-L6-v2 is a good default) self.embed_model = HuggingFaceEmbedding( model_name="sentence-transformers/all-MiniLM-L6-v2" ) # Create Neo4j vector store self.vector_store = Neo4jVectorStore( url=self.neo4j_uri, username=self.neo4j_user, password=self.neo4j_password, embedding_dimension=384, # matches the dimension of all-MiniLM-L6-v2 index_name="document_index", node_label="Document", embedding_field="embedding", text_field="text" ) # Create service context self.service_context = ServiceContext.from_defaults( llm=self.llm, embed_model=self.embed_model ) # Initialize the index self.index = VectorStoreIndex.from_vector_store( vector_store=self.vector_store, service_context=self.service_context ) def add_documents(self, documents: List[Dict[str, str]]) -> None: """ Add documents to the vector store. Args: documents: List of dictionaries containing 'text' and optional metadata """ doc_objects = [ Document(text=doc['text'], metadata=doc.get('metadata', {})) for doc in documents ] self.index.insert_nodes(doc_objects) def query(self, query_text: str, response_mode: str = "compact") -> str: """ Query the RAG system. Args: query_text: The question or query text response_mode: One of "compact", "tree_summarize", or "accumulate" Returns: str: The generated response """ query_engine = self.index.as_query_engine( response_mode=response_mode ) response = query_engine.query(query_text) return str(response) def add_graph_relationship(self, source_id: str, target_id: str, relationship_type: str, properties: Dict = None) -> None: """ Add a relationship between two nodes in the graph. Args: source_id: ID of the source node target_id: ID of the target node relationship_type: Type of relationship properties: Optional dictionary of relationship properties """ with GraphDatabase.driver(self.neo4j_uri, auth=(self.neo4j_user, self.neo4j_password)) as driver: with driver.session() as session: cypher = ( f"MATCH (a), (b) " f"WHERE id(a) = $source_id AND id(b) = $target_id " f"CREATE (a)-[r:{relationship_type} $props]->(b) " f"RETURN type(r)" ) session.run(cypher, source_id=source_id, target_id=target_id, props=properties or {}) def main(): # Initialize the RAG system rag_system = GraphRAGSystem() # Example documents example_docs = [ { "text": "Neo4j is a graph database management system developed by Neo4j, Inc.", "metadata": {"type": "definition", "topic": "databases"} }, { "text": "Graph databases store data in nodes connected by relationships.", "metadata": {"type": "concept", "topic": "databases"} } ] # Add documents to the system rag_system.add_documents(example_docs) # Example query query = "What is Neo4j and how does it store data?" response = rag_system.query(query) print(f"\nQuery: {query}") print(f"Response: {response}") if __name__ == "__main__": main() ``` This application provides: 1. A complete `GraphRAGSystem` class that integrates: * Neo4j for graph storage * Groq's LLM API (using Mixtral-8x7b) * LlamaIndex for RAG functionality * HuggingFace embeddings for vector search 2. Key features: * Document ingestion with metadata support * Vector similarity search * Graph relationship management * Flexible querying with different response modes 3. Configuration through environment variables: ```bash NEO4J_URI=bolt://neo4j:7687 NEO4J_USER=neo4j NEO4J_PASSWORD=your_password_here GROQ_API_KEY=your_groq_api_key_here ``` To use this in your Docker setup: 1. Save the code as `app/main.py` 2. Create a `.env` file in your project root: .env Configuration ``` NEO4J_URI=bolt://neo4j:7687 NEO4J_USER=neo4j NEO4J_PASSWORD=your_password_here GROQ_API_KEY=your_groq_api_key_here ``` 3. Update the requirements.txt to include additional dependencies: Updated Python Requirements ``` langchain langchain-groq neo4j python-dotenv llama-index llama-index-vector-stores-neo4j llama-index-llms-groq sentence-transformers ``` The system will: * Store document embeddings in Neo4j * Use Groq's API for question answering * Support graph relationships between documents * Allow for metadata-aware querying Would you like me to show you how to extend this with more advanced features like: * Custom query templates * Relationship-aware querying * Hybrid search (combining vector and graph traversal) * Or something else specific to your use case? -
wware revised this gist
Oct 25, 2024 . 1 changed file with 136 additions and 1 deletion.There are no files selected for viewing
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters. Learn more about bidirectional Unicode charactersOriginal file line number Diff line number Diff line change @@ -456,4 +456,139 @@ Would you like me to: 1. Explain any specific configuration options in more detail? 2. Show how to set up clustering with Docker? 3. Demonstrate how to integrate with other services (like vector databases)? ## Prompt: Let's assume I want to build a Neo4J-based graph RAG system using the earlier Python code for constructing prompts and I want to do this in docker-compose using the official Neo4J docker image for one of my containers. And for the LLM, I want to use the public Groq API, accessed by either LangChain or LlamaIndex. Please show me the docker-compose.yml file I would need to do this. ## Response: I'll help you create a docker-compose file that sets up a Neo4j container and a Python service that can interact with both Neo4j and Groq's API. #### Docker Compose Configuration for Neo4j Graph RAG System ``` version: '3.8' services: neo4j: image: neo4j:5.13.0 container_name: neo4j-graph-rag ports: - "7474:7474" # HTTP - "7687:7687" # Bolt environment: - NEO4J_AUTH=neo4j/your_password_here - NEO4J_PLUGINS=["graph-data-science", "apoc"] # Optional but recommended plugins - NEO4J_dbms_memory_heap_initial__size=512M - NEO4J_dbms_memory_heap_max__size=2G - NEO4J_dbms_memory_pagecache_size=512M volumes: - neo4j_data:/data - neo4j_logs:/logs - neo4j_import:/import - neo4j_plugins:/plugins networks: - graph-rag-network rag-service: build: context: . dockerfile: Dockerfile container_name: rag-service depends_on: - neo4j environment: - NEO4J_URI=bolt://neo4j:7687 - NEO4J_USER=neo4j - NEO4J_PASSWORD=your_password_here - GROQ_API_KEY=your_groq_api_key_here volumes: - ./app:/app networks: - graph-rag-network command: python main.py # Adjust based on your entry point networks: graph-rag-network: driver: bridge volumes: neo4j_data: neo4j_logs: neo4j_import: neo4j_plugins: ``` You'll also need a Dockerfile for the rag-service. Here it is: #### Dockerfile for RAG Service ``` FROM python:3.11-slim WORKDIR /app # Install system dependencies RUN apt-get update && apt-get install -y \ build-essential \ && rm -rf /var/lib/apt/lists/* # Copy requirements file COPY requirements.txt . # Install Python dependencies RUN pip install --no-cache-dir -r requirements.txt # Copy application code COPY ./app . CMD ["python", "main.py"] ``` #### And here's a minimal requirements.txt file you'll need: Python Requirements ``` langchain langchain-groq neo4j python-dotenv llama-index llama-index-vector-stores-neo4j ``` To use this setup: 1. Create a project directory with the following structure: ``` project/ ├── docker-compose.yml ├── Dockerfile ├── requirements.txt └── app/ └── main.py # Your application code ``` 2. Important notes: * Replace `your_password_here` with a secure password for Neo4j * Replace `your_groq_api_key_here` with your actual Groq API key * The Neo4j container includes optional but recommended plugins (APOC and Graph Data Science) * The Neo4j data, logs, and plugins are persisted using named volumes * The services are connected via a dedicated network named `graph-rag-network` * The Python service waits for Neo4j to be ready before starting * Memory settings for Neo4j are conservative and can be adjusted based on your needs 3. To start the services: ```bash docker-compose up -d ``` 4. Access points: * Neo4j Browser: [http://localhost:7474](http://localhost:7474) * Neo4j Bolt: bolt://localhost:7687 * Your RAG service will run inside its container and can communicate with Neo4j using the internal network Would you like me to show you how to modify the Python code you provided to work with this Docker setup, or would you like to see how to configure environment variables for better security? -
wware revised this gist
Oct 25, 2024 . 1 changed file with 0 additions and 0 deletions.There are no files selected for viewing
LoadingSorry, something went wrong. Reload?Sorry, we cannot display this file.Sorry, this file is invalid so it cannot be displayed. -
wware revised this gist
Oct 24, 2024 . 1 changed file with 2 additions and 4 deletions.There are no files selected for viewing
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters. Learn more about bidirectional Unicode charactersOriginal file line number Diff line number Diff line change @@ -46,9 +46,7 @@ How is the first step accomplished? I assume there is some prompt engineering ma ## Response: Yes, I'll break down the query construction phase and show how prompt engineering is typically used to transform a natural language query into a graph database query. [Graph Query Construction with Prompt Engineering](#file-graphqueryconstructionprompt-py) Let me explain the key components of the prompt engineering approach: @@ -95,7 +93,7 @@ I'm unfamiliar with the Cypher syntax. Where can I learn more about it? ## Response: Let me create a beginner-friendly guide to Cypher's core syntax. [Introduction to Cypher Query Language](#file-cypherlanguagebeginnerguide-md) I've created a beginner's guide to Cypher. The key thing to remember is that Cypher queries are essentially pattern matching using ASCII art-like syntax. The queries visually represent what you're looking for in the graph. -
wware revised this gist
Oct 24, 2024 . 1 changed file with 8 additions and 0 deletions.There are no files selected for viewing
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters. Learn more about bidirectional Unicode charactersOriginal file line number Diff line number Diff line change @@ -1,3 +1,11 @@ # What is this document? *What follows is a conversation I had with Anthropic's https://claude.ai/ LLM, asking it questions about how Graph RAG works in as much detail as I could think of. When I think of graph databases, I normally think RDF, but the generally preferred graph DB for LLM apps seems to be Neo4J which uses a query language called Cypher rather than SPARQL, so there are some questions below about Neo4J and Cypher syntax. The thing I really wanted to know about was the sequence of queries and responses involved, and how the queries are constructed, and how the responses are interpreted.* ## Prompt: During a typical graph rag query and response, what would a langsmith trace look like? -
wware revised this gist
Oct 24, 2024 . 1 changed file with 1 addition and 1 deletion.There are no files selected for viewing
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters. Learn more about bidirectional Unicode charactersOriginal file line number Diff line number Diff line change @@ -269,7 +269,7 @@ The asterisk `*` in Cypher indicates a variable-length path - it means "follow t Let me show you how it works:  Here are the key variations of path matching: -
wware revised this gist
Oct 24, 2024 . 1 changed file with 1 addition and 3 deletions.There are no files selected for viewing
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters. Learn more about bidirectional Unicode charactersOriginal file line number Diff line number Diff line change @@ -269,9 +269,7 @@ The asterisk `*` in Cypher indicates a variable-length path - it means "follow t Let me show you how it works:  Here are the key variations of path matching: -
wware revised this gist
Oct 24, 2024 . 1 changed file with 0 additions and 0 deletions.There are no files selected for viewing
LoadingSorry, something went wrong. Reload?Sorry, we cannot display this file.Sorry, this file is invalid so it cannot be displayed. -
wware revised this gist
Oct 24, 2024 . 1 changed file with 1 addition and 3 deletions.There are no files selected for viewing
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters. Learn more about bidirectional Unicode charactersOriginal file line number Diff line number Diff line change @@ -87,9 +87,7 @@ I'm unfamiliar with the Cypher syntax. Where can I learn more about it? ## Response: Let me create a beginner-friendly guide to Cypher's core syntax. [Introduction to Cypher Query Language](https://gist.github.com/wware/4c9b2ea74f02b68c1ffa00b3a2d49b9a#file-cypherlanguagebeginnerguide-md) I've created a beginner's guide to Cypher. The key thing to remember is that Cypher queries are essentially pattern matching using ASCII art-like syntax. The queries visually represent what you're looking for in the graph. -
wware revised this gist
Oct 24, 2024 . 1 changed file with 1 addition and 3 deletions.There are no files selected for viewing
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters. Learn more about bidirectional Unicode charactersOriginal file line number Diff line number Diff line change @@ -4,9 +4,7 @@ During a typical graph rag query and response, what would a langsmith trace look ## Response: Let me create a visualization of what a typical LangSmith trace would look like for a RAG query using a graph database.  I've created a diagram showing a typical LangSmith trace for a graph RAG query. Here's what's happening in each major section: -
wware revised this gist
Oct 24, 2024 . 1 changed file with 0 additions and 0 deletions.There are no files selected for viewing
LoadingSorry, something went wrong. Reload?Sorry, we cannot display this file.Sorry, this file is invalid so it cannot be displayed. -
wware renamed this gist
Oct 24, 2024 . 1 changed file with 0 additions and 0 deletions.There are no files selected for viewing
File renamed without changes. -
wware created this gist
Oct 24, 2024 .There are no files selected for viewing
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters. Learn more about bidirectional Unicode charactersOriginal file line number Diff line number Diff line change @@ -0,0 +1,102 @@ # Cypher Query Language - A Beginner's Guide ## Core Concept: ASCII Art Pattern Matching Cypher queries look like ASCII art! The syntax visually represents the patterns you're trying to match in your graph. ```(node1)-[relationship]->(node2)``` ## Basic Building Blocks 1. Nodes * Represented with parentheses: `()` * Labels use a colon: `(:Person)` * Properties use curly braces: `(:Person {name: "John"})` ```MATCH (p:Person {name: "John"}) RETURN p``` 2. Relationships * Represented with square brackets: `[]` * Arrows show direction: `->` or `<-` * Types use colon: `[:WORKS_AT]` * Properties in curly braces: `[:WORKS_AT {since: 2020}]` ```MATCH (:Person)-[r:WORKS_AT]->(c:Company) RETURN r, c``` 3. Common Commands * `MATCH`: Find patterns in your graph * `WHERE`: Filter results * `RETURN`: Specify what to output * `CREATE`: Make new nodes/relationships * `MERGE`: Create if doesn't exist * `SET`: Update properties * `DELETE`: Remove nodes/relationships ## Common Patterns ### Finding Connected Nodes ```cypher // Find John's friends MATCH (john:Person {name: "John"})-[:FRIENDS_WITH]->(friend:Person) RETURN friend.name ``` ### Creating Relationships ```cypher // Make John work at Acme Corp MATCH (p:Person {name: "John"}) MATCH (c:Company {name: "Acme Corp"}) CREATE (p)-[:WORKS_AT {since: 2024}]->(c) ``` ### Optional Matching ```cypher // Find all people and their managers (if they have one) MATCH (p:Person) OPTIONAL MATCH (p)-[:MANAGED_BY]->(manager:Person) RETURN p.name, manager.name ``` ### Aggregation ```cypher // Count employees per company MATCH (c:Company)<-[:WORKS_AT]-(p:Person) RETURN c.name, COUNT(p) as employee_count ``` ## Best Practices ### Start Small * Begin with simple patterns * Add complexity gradually * Test each part separately ### Use Parameters * Instead of: `{name: "John"}` * Use: `{name: $personName}` * Prevents injection, improves caching ### Name Your Patterns * Use meaningful variable names * Makes queries more readable * Helps with maintenance ### Limit Results * Use LIMIT for large datasets * Add ORDER BY for consistency * Consider pagination ## Interactive Learning Resources * Neo4j's Official Sandbox: https://neo4j.com/sandbox/ + Free interactive environment + Comes with sample datasets + Guided tutorials * Neo4j Browser Tutorial: + Type `:play cypher` in Neo4j Browser + Interactive, step-by-step lessons + Real-time feedback * Cypher Manual: https://neo4j.com/docs/cypher-manual/ + Comprehensive reference + Detailed examples + Best practices This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters. Learn more about bidirectional Unicode charactersOriginal file line number Diff line number Diff line change @@ -0,0 +1,96 @@ from langchain.prompts import ChatPromptTemplate from langchain.chat_models import ChatOpenAI from langchain.chains import LLMChain # Define the system prompt that teaches the LLM how to construct graph queries SYSTEM_TEMPLATE = """You are a graph query expert that converts natural language questions into Cypher queries. Follow these rules when constructing queries: 1. Always use lowercase for relationship types and property names 2. Use descriptive variable names (e.g., 'person' instead of 'p') 3. Include relevant properties in the RETURN clause 4. Add appropriate WHERE clauses for filtering 5. Use OPTIONAL MATCH when the relationship might not exist 6. Limit results when appropriate The graph schema is: - Nodes: * Person(id, name, age, title) * Company(id, name, industry) * Project(id, name, status) - Relationships: * WORKS_AT(since) * MANAGES(role) * WORKS_ON(role, hours) Convert the user's question into a Cypher query.""" # Define the human prompt template HUMAN_TEMPLATE = """Question: {question} Create a Cypher query that answers this question. Return only the Cypher query with no explanations.""" # Create the full prompt template prompt = ChatPromptTemplate.from_messages([ ("system", SYSTEM_TEMPLATE), ("human", HUMAN_TEMPLATE) ]) def construct_graph_query(question: str, llm: ChatOpenAI) -> str: """ Constructs a Cypher query from a natural language question. Args: question: Natural language question llm: Language model instance Returns: str: Generated Cypher query """ # Create the chain chain = LLMChain(llm=llm, prompt=prompt) # Generate the query result = chain.invoke({"question": question}) return result["text"].strip() # Example usage if __name__ == "__main__": example_questions = [ "Who are all the senior managers at tech companies?", "Which projects have no one working on them?", "Find people who work at multiple companies" ] llm = ChatOpenAI(temperature=0, model="gpt-4") for question in example_questions: query = construct_graph_query(question, llm) print(f"\nQuestion: {question}") print(f"Generated Query: {query}") # Example outputs: """ Question: Who are all the senior managers at tech companies? Generated Query: MATCH (person:Person)-[m:MANAGES]->(company:Company) WHERE company.industry = 'tech' AND m.role CONTAINS 'senior' RETURN person.name, company.name, m.role ORDER BY company.name Question: Which projects have no one working on them? Generated Query: MATCH (project:Project) WHERE NOT EXISTS ((person:Person)-[:WORKS_ON]->(project)) RETURN project.name, project.status Question: Find people who work at multiple companies Generated Query: MATCH (person:Person)-[w:WORKS_AT]->(company:Company) WITH person, COUNT(company) as company_count WHERE company_count > 1 MATCH (person)-[w:WORKS_AT]->(company:Company) RETURN person.name, COLLECT(company.name) as companies, COUNT(company) as num_companies ORDER BY num_companies DESC """ This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters. Learn more about bidirectional Unicode charactersOriginal file line number Diff line number Diff line change @@ -0,0 +1,459 @@ ## Prompt: During a typical graph rag query and response, what would a langsmith trace look like? ## Response: Let me create a visualization of what a typical LangSmith trace would look like for a RAG query using a graph database. LangSmith Trace for Graph RAG Query Click to open diagram I've created a diagram showing a typical LangSmith trace for a graph RAG query. Here's what's happening in each major section: 1. Query Construction Phase: * Takes the raw user input * Processes it into a structured format * Generates the appropriate graph query 2. Graph Retrieval Phase: * Executes the query against the graph database * Returns relevant subgraphs * Processes the results 3. Context Creation Phase: * Formats the graph data for the LLM * Creates an appropriate context window 4. LLM Generation Phase: * Sends the combined query and context to the LLM * Processes and generates the final response Each phase is tracked separately in LangSmith, allowing you to: * Monitor performance metrics * Debug bottlenecks * Track token usage * Analyze query patterns Would you like me to expand on any particular phase or add more specific metrics to the trace visualization? ## Prompt: How is the first step accomplished? I assume there is some prompt engineering magic involved? ## Response: Yes, I'll break down the query construction phase and show how prompt engineering is typically used to transform a natural language query into a graph database query. Graph Query Construction with Prompt Engineering Click to open code Let me explain the key components of the prompt engineering approach: 1. **System Prompt Design**: * Defines the role and expertise (graph query expert) * Provides clear rules for query construction * Includes the complete schema definition * Sets expectations for output format 2. **Schema Definition**: * Lists all node types with their properties * Defines relationship types and their attributes * Helps the LLM understand the graph structure 3. **Query Construction Rules**: * Enforces consistent naming conventions * Requires descriptive variable names * Specifies when to use optional matches * Includes guidance on result limiting 4. **Implementation Features**: * Uses zero temperature for deterministic outputs * Returns only the query without explanations * Handles various types of questions * Maintains consistent formatting Some example transformations this enables: ``` Natural: "Who does Alice work with?" ↓ Cypher: MATCH (alice:Person {name: 'Alice'})-[:WORKS_AT]->(company:Company) MATCH (coworker:Person)-[:WORKS_AT]->(company) WHERE coworker <> alice RETURN DISTINCT coworker.name, company.name ``` Would you like me to: 1. Add more example transformations? 2. Show how to handle more complex graph patterns? 3. Explain how to validate the generated queries? ## Prompt: I'm unfamiliar with the Cypher syntax. Where can I learn more about it? ## Response: Let me create a beginner-friendly guide to Cypher's core syntax. Introduction to Cypher Query Language Click to open document I've created a beginner's guide to Cypher. The key thing to remember is that Cypher queries are essentially pattern matching using ASCII art-like syntax. The queries visually represent what you're looking for in the graph. For example, if you want to find people who work at companies: ```cypher (person:Person)-[:WORKS_AT]->(company:Company) ``` This pattern literally looks like what it's matching: a person node, connected by a WORKS\_AT relationship, pointing to a company node. Would you like me to: 1. Show more specific examples for your use case? 2. Explain any particular pattern in more detail? 3. Demonstrate how to build more complex queries step by step? ## Prompt: Is neo4j a triple store? ## Response: No, Neo4j is not a triple store, though there are some important similarities and differences worth exploring. Triple Store vs Property Graph Model Click to open diagram Key differences between Neo4j (a property graph database) and triple stores: 1. **Data Model**: * Triple Store: Data is stored as subject-predicate-object triples * Neo4j: Uses labeled property graphs with: * Nodes that can have multiple properties * Relationships that can have properties * Both nodes and relationships can have labels/types 2. **Property Storage**: * Triple Store: Properties are stored as additional triples * Neo4j: Properties are stored directly on nodes and relationships 3. **Query Language**: * Triple Store: Usually SPARQL * Neo4j: Cypher 4. **Schema**: * Triple Store: Often uses RDF Schema or OWL ontologies * Neo4j: Schema-optional with optional constraints and indexes 5. **Use Cases**: * Triple Stores: Better for: * Semantic web applications * Linked data * Ontology-based integration * Neo4j: Better for: * Complex relationship patterns * Path finding * Graph algorithms To illustrate, here's how the same data might be represented: ``` # Triple Store (RDF) :person/123 :name "John" . :person/123 :works_at :company/456 . :company/456 :name "Acme Corp" . # Neo4j (Cypher) CREATE (p:Person {id: 123, name: 'John'}) CREATE (c:Company {id: 456, name: 'Acme Corp'}) CREATE (p)-[:WORKS_AT {since: 2020}]->(c) ``` Would you like me to elaborate on any of these differences or explore specific use cases where one might be preferred over the other? ## Prompt: OWL can express set theoretic ideas and other useful info about your entities, so you can structure your domain knowledge nicely. Is there anything equivalent for property graphs? ## Response: Yes, property graphs can capture semantic information through Property Graph Schema (PGS) and Graph Data Science (GDS) capabilities, though it's structured differently from OWL. Property Graph Schema and Constraints Click to open diagram Here are the key ways property graphs can express domain knowledge: 1. **Node Label Hierarchies**: ```cypher CREATE CONSTRAINT person_age IF NOT EXISTS FOR (p:Person) REQUIRE p.age IS NOT NULL AND p.age >= 18; CREATE CONSTRAINT employee_inherits IF NOT EXISTS FOR (e:Employee) REQUIRE e:Person; ``` 2. **Property Constraints**: ```cypher // Define required properties CREATE CONSTRAINT person_name IF NOT EXISTS FOR (p:Person) REQUIRE p.name IS NOT NULL; // Define property types CREATE CONSTRAINT person_age_type IF NOT EXISTS FOR (p:Person) REQUIRE p.age IS INTEGER; // Define value constraints CREATE CONSTRAINT company_industry IF NOT EXISTS FOR (c:Company) REQUIRE c.industry IN ['Tech', 'Finance', 'Healthcare']; ``` 3. **Relationship Cardinality**: ```cypher // Ensure each Employee works at exactly one Company CREATE CONSTRAINT employee_company IF NOT EXISTS FOR ()-[r:WORKS_AT]->() REQUIRE r.since IS NOT NULL; MATCH (e:Employee) WITH e, count(()-[:WORKS_AT]->()) as company_count WHERE company_count <> 1 RETURN e.name; ``` 4. **Semantic Rules via Procedures**: ```python @procedure("domain.validateEmployeeHierarchy") def validate_hierarchy(tx): # Check that no employee manages their manager query = """ MATCH (e1:Employee)-[:MANAGES]->(e2:Employee) MATCH (e2)-[:MANAGES*]->(e1) RETURN e1.name, e2.name """ return tx.run(query) ``` 5. **Graph Data Science for Inference**: ```cypher // Find implicit relationships through pattern analysis CALL gds.nodeSimilarity.stream({ nodeProjection: ['Person'], relationshipProjection: { KNOWS: { type: 'KNOWS', orientation: 'UNDIRECTED' } } }) ``` Key differences from OWL: 1. **Expressiveness**: * OWL: Formal logic, supports complex reasoning * PGS: More practical, focused on data integrity 2. **Reasoning**: * OWL: Built-in inference engine * PGS: Custom procedures + Graph algorithms 3. **Validation**: * OWL: Logical consistency checking * PGS: Constraint checking + Custom validation 4. **Use Cases**: * OWL: Knowledge representation, inference * PGS: Data integrity, pattern matching Would you like me to: 1. Show more examples of how to implement specific OWL-like features in property graphs? 2. Explain how to combine Graph Data Science with schema constraints? 3. Demonstrate how to build custom inference rules? ## Prompt: What does the asterisk in `[:MANAGES*]` mean? ## Response: The asterisk `*` in Cypher indicates a variable-length path - it means "follow this relationship type zero or more times" (or in other words, traverse this relationship transitively). This is incredibly useful for hierarchical or recursive relationships. Let me show you how it works: Variable-Length Path Matching in Cypher Click to open diagram Here are the key variations of path matching: ```cypher // Direct management (depth = 1) MATCH (manager)-[:MANAGES]->(employee) RETURN manager.name, employee.name; // Exactly two levels down (depth = 2) MATCH (manager)-[:MANAGES*2]->(employee) RETURN manager.name, employee.name; // Between 1 and 3 levels (1 ≤ depth ≤ 3) MATCH (manager)-[:MANAGES*1..3]->(employee) RETURN manager.name, employee.name; // All levels down (any depth) MATCH (manager)-[:MANAGES*]->(employee) RETURN manager.name, employee.name; // Zero or more levels (includes self) MATCH (person)-[:MANAGES*0..]->(employee) RETURN person.name, employee.name; ``` Common use cases include: 1. **Organizational Hierarchies**: ```cypher // Find all employees under a VP MATCH (vp:Employee {title: 'VP'})-[:MANAGES*]->(employee) RETURN employee.name; ``` 2. **Cycle Detection**: ```cypher // Find circular management chains MATCH (e:Employee)-[:MANAGES*]->(e) RETURN e.name; ``` 3. **Level-specific Queries**: ```cypher // Find skip-level reports (reports of reports) MATCH (manager)-[:MANAGES*2]->(skip_level_report) RETURN manager.name, skip_level_report.name; ``` 4. **Path Analysis**: ```cypher // Find the management chain between two people MATCH path = (e1:Employee)-[:MANAGES*]->(e2:Employee) WHERE e1.name = 'Alice' AND e2.name = 'Eve' RETURN [node in nodes(path) | node.name] as chain; ``` Would you like me to: 1. Show more examples of variable-length patterns? 2. Explain how to optimize queries with variable-length paths? 3. Demonstrate how to combine this with other Cypher features? ## Prompt: It sounds like neo4j is the de facto standard graph database for graph rag applications, is that right? Are any other graph Dbs in common usage? ## Response: Neo4j is very popular for graph RAG applications, but there are several other significant players in this space. Let me break this down. Graph Databases in RAG Applications Click to open document Some key observations about the current landscape: 1. **Neo4j's Popularity** comes from: * Large existing userbase * Strong integration with common RAG frameworks * Good documentation for AI/ML use cases * Vector search capabilities 2. **Emerging Trends**: * Many databases are adding native vector support * Hybrid architectures becoming more common * Focus on scalability and real-time updates 3. **Selection Factors**: * Scale of data * Query patterns * Infrastructure requirements * Team expertise * Cost considerations Would you like me to: 1. Dive deeper into any particular database? 2. Explain specific RAG integration patterns? 3. Compare query languages across these databases? ## Prompt: Is neo4j available as a docker image? If so, what docker-run options are typically used with it? ## Response: Yes, Neo4j is available as a Docker image. Let me show you the typical Docker setup. Neo4j Docker Configuration Click to open code Let me explain the key components: 1. **Essential Ports**: * 7474: HTTP for browser interface * 7687: Bolt protocol for database connections * 7473: HTTPS (optional) 2. **Important Volumes**: * `/data`: Database files * `/logs`: Log files * `/import`: For importing data files * `/plugins`: Custom plugins/extensions * `/conf`: Configuration files 3. **Common Environment Variables**: ```bash # Basic Setup NEO4J_AUTH=neo4j/yourpassword # Set initial password NEO4J_ACCEPT_LICENSE_AGREEMENT=yes # Required for enterprise # Memory Configuration NEO4J_server_memory_heap_initial__size=2G NEO4J_server_memory_heap_max__size=2G NEO4J_server_memory_pagecache_size=1G # APOC and GDS (Graph Data Science) NEO4J_dbms_security_procedures_unrestricted=apoc.*,gds.* ``` 4. **Quick Start Command**: ```bash docker run --name neo4j \ -p 7474:7474 -p 7687:7687 \ -v $HOME/neo4j/data:/data \ -e NEO4J_AUTH=neo4j/password123 \ neo4j:latest ``` 5. **Development vs Production**: ```bash # Development docker run --name neo4j \ -p 7474:7474 -p 7687:7687 \ -v $HOME/neo4j/data:/data \ -e NEO4J_AUTH=neo4j/password123 \ -e NEO4J_ACCEPT_LICENSE_AGREEMENT=yes \ -e NEO4J_server_memory_heap_max__size=512M \ neo4j:latest # Production docker run --name neo4j \ -p 7474:7474 -p 7687:7687 \ -v /path/to/data:/data \ -v /path/to/logs:/logs \ -v /path/to/import:/var/lib/neo4j/import \ -v /path/to/plugins:/plugins \ -e NEO4J_AUTH=neo4j/strongpassword \ -e NEO4J_ACCEPT_LICENSE_AGREEMENT=yes \ -e NEO4J_server_memory_heap_max__size=16G \ -e NEO4J_server_memory_pagecache_size=4G \ --ulimit nofile=40000:40000 \ --restart unless-stopped \ neo4j:enterprise ``` Would you like me to: 1. Explain any specific configuration options in more detail? 2. Show how to set up clustering with Docker? 3. Demonstrate how to integrate with other services (like vector databases)?