Hacker News with Generative AI: Graph Databases

NASA jettisons Neo4j database for Memgraph citing costs (theregister.com)
NASA's people analytics group has swapped its Neo4j graph database for Memgraph due to costs.

NASA, Databases, Cost Optimization, Graph Databases

7 points by rntn 16 days ago | 1 comments

Options for Building GraphRAG: Frameworks, Graph Databases, and Tools (memgraph.com)
Building a GraphRAG (Graph-based Retrieval-Augmented Generation) system requires combining structured data (often stored in a knowledge graph) with LLMs to improve the precision and relevance of responses. But how do you go about building one?

Graph Databases, Generative AI, Knowledge Graphs, Frameworks

8 points by sareada52 19 days ago | 0 comments

How Can Companies Meet Energy Management Demands – A Graph Approach (memgraph.com)
As blockchain and machine learning were the buzzwords 10 years ago, it seems that energy will be the buzzword of this decade. Being the most powerful asset in the upcoming years, it comes as a surprise that handling and managing power remains rather poor.

Energy Management, Graph Databases, Technology

3 points by LLcolD 24 days ago | 0 comments

How NASA Is Using Graph Technology and LLMs to Build a People Knowledge Graph (memgraph.com)
Ever wondered how NASA identifies its top experts, forms high-performing teams, and plans for the skills of tomorrow? The answer lies in their People Graph!

NASA, Graph Databases, LLMs, Knowledge Graphs, Human Resources

107 points by lexmo67 26 days ago | 53 comments

Show HN: HelixDB – Native graph and vector types for RAG and retrieval (github.com/HelixDB)
HelixDB is a powerful, graph-vector database built in Rust for millisecond query latency and ease of use.

Databases, Graph Databases, Rust, RAG, Retrieval

25 points by GeorgeCurtis 42 days ago | 6 comments

Postgres as a Graph Database: (Ab)Using PgRouting (supabase.com)
pgRouting is a Postgres extension. It's often used for finding the “shortest path” between two locations, however it's a hidden gem in Postgres and can be used for basic graph functionality.

Postgres, Graph Databases, Databases, pgRouting, Routing

164 points by michelpp 85 days ago | 44 comments

MillenniumDB: Property graph and RDF engine, still in development (github.com/MillenniumDB)
MillenniumDB is a graph oriented database management system developed by the Millennium Institute for Foundational Research on Data (IMFD).

Databases, Graph Databases, RDF, Open Source, Research

81 points by robsalasco 112 days ago | 40 comments

Raphtory – In-memory vectorised graph database written in Rust (github.com/Pometry)
Raphtory is an in-memory vectorised graph database written in Rust with friendly Python APIs on top.

Graph Databases, Rust, Python, Databases, Software

21 points by febin 123 days ago | 0 comments

Apache AGE: Graph Database for PostgreSQL (apache.org)

Databases, PostgreSQL, Graph Databases

4 points by wslh 132 days ago | 0 comments

Dismantling ELT: The Case for Graphs, Not Silos (jack-vanlightly.com)
ELT is a bridge between silos. A world without silos is a graph.

Data Engineering, Data Architecture, Graph Databases

35 points by sebg 176 days ago | 15 comments

Sortledton: A Universal, Transactional Graph Data Structure [pdf] (vldb.org)

Data Structures, Databases, Graph Databases

96 points by todsacerdoti 202 days ago | 14 comments

Graph Retrieval Using Postgres Recursive CTEs (sheshbabu.com)
Did you know you can use Postgres as a graph database for certain usecases?

Database, SQL, Graph Databases, Postgres

12 points by aleclarsoniv 211 days ago | 0 comments

Graph Databases for Crime-Fighting: How Memgraph Maps and Analyzes Criminal (memgraph.com)
Graph databases, such as Memgraph, are highly effective in crime-fighting and intelligence work because they excel at uncovering and analyzing relationships between entities, such as individuals, communication channels, and locations. In counter-terrorism and counter-intelligence operations, graph databases are often used to map out and analyze complex networks of individuals and their associations.

Graph Databases, Crime, Data Analysis, Security, Intelligence

13 points by taubek 221 days ago | 4 comments

Is anyone deploying GraphRAG in prod? (ycombinator.com)
I've been seeing a lot of buzz around GraphRAG and its potential, but many implementations seem to encounter issues, often with Neo4j. Has anyone managed to set up a reliable and cost-effective GraphRAG system in production? I'm curious about real-world experiences and practical solutions.

Graph Databases, Production Deployment, Neo4j

13 points by cbrizz00 246 days ago | 5 comments

Achieving the perfect golden record with graph data (aerospike.com)

Database Technology, Data Visualization, Graph Databases

15 points by AlexanderPatino 284 days ago | 0 comments

Ask HN: What is the best software to visualize a graph with a billion nodes? (ycombinator.com)

Data Visualization, Graph Databases, Software Recommendations

134 points by throwaway425933 295 days ago | 109 comments

RAGFlow: Modern Agentic RAG Based on Graph (ragflow.io)

Generative AI, Graph Databases

13 points by vissidarte_choi 316 days ago | 5 comments

Show HN: Reagent – graph based framework for building AI agent with UI (github.com/reagentai)