Glossary
Knowledge graph
Definition: a representation of information as nodes (entities, concepts, pages) connected by edges (relationships), used to model how ideas relate to each other.
Plain-English definition
A knowledge graph represents what you know as nodes connected by edges. Nodes are usually pages, concepts, or entities; edges are the relationships between them — "related to," "caused by," "part of." In personal notes apps, the nodes are typically pages and the edges are wikilinks.
Where it shows up in modern tools
- Graph view in Obsidian, Logseq, MindWiki — pan/zoom over nodes and edges.
- Backlinks panel — the inverse edges for any one page.
- Wikipedia-style internal linking — the original consumer-facing knowledge graph.
- Schema.org / structured data — knowledge graphs for the public web.
Honest about the term
In note apps, "knowledge graph" usually means the link graph between pages, not a typed/inferred ontology. The graph is built from the wikilinks you write — it doesn't invent connections from text similarity.