FB15K: Loading FB15K-237 into Neo4j
A practical Cypher import—and what a graph of MIDs and 237 relation names reveals about knowledge graph benchmark data.
Notes
Blog
Notes on knowledge graphs, data modeling, GraphRAG, SQL/PGQ, GQL, and migration planning.
FB15K: Understanding the Dataset
What FB15K and FB15K-237 contain, why inverse relations matter, and what these widely used benchmarks actually measure.
COVID-19: Same Patient, Different Data
How mixed CSV and Excel files, Japanese character encodings, source-specific patient IDs, and conflicting values turned COVID-19 data integration into an identity and provenance problem.
COVID-19: Validating Related Patient Data with Graphs
How Neo4j and Git history helped reveal suspicious relationships, report them to local governments, and trace later corrections.
Learning Neo4j: A Japanese Citrus Family Tree
Using Japanese citrus varieties to learn graph modeling with parent-child relationships, intermediate breeding lines, and path queries.
Migration Planning: Using Graphs
How graph modeling can help clarify dependencies, inconsistencies, validation points, and cutover risks in system and data migration.
Learning Neo4j: Okonomiyaki
Using a familiar food domain to learn graph modeling with shops, places, noren relationships, ingredients, and cooking steps.