Wikidata Knowledge Graph Explorer — Interactive Entity Relationship Visualization with SPARQL
The Wikidata Knowledge Graph Explorer visualizes relationships between people, organizations, places, and events as an interactive force-directed network graph. Search for any entity — a historical figure, a company, a city, a scientific concept — and the tool queries Wikidata via SPARQL to fetch related entities and render them as linked nodes. Clicking any node expands it to reveal its own connections, allowing users to traverse the knowledge graph hop by hop.
The graph is rendered using D3.js with a force simulation that positions nodes based on relationship strength. Edge labels describe the type of relationship between entities — employs, located in, educated at, influenced by, part of — drawn directly from Wikidata's property statements. This project demonstrates how Wikidata's open knowledge base can be navigated as a visual graph rather than a traditional database query interface, making complex entity relationships immediately legible.
Keywords: Wikidata knowledge graph, interactive entity graph, SPARQL visualization, knowledge graph explorer, linked data browser, D3.js knowledge graph, entity relationship visualization, Wikidata SPARQL query, semantic web explorer, interactive graph database