Definitionv1
Bridge node: a concept that connects two otherwise separate
Bridge node: a concept that connects two otherwise separate clusters of knowledge in a knowledge graph, having structural correspondence between domains rather than mere metaphorical similarity, and generating predictions or insights in both directions
Why This Is a Definition
This definition clearly names the term 'bridge node', states its genus (a concept in a knowledge graph), and provides its differentia (connecting separate clusters with structural correspondence that generates predictions in both domains). It distinguishes bridge nodes from metaphors and specifies the key functional characteristic of generating insights in both connected domains. The definition is precise enough to distinguish from related terms like metaphors and is consistent with how the curriculum uses the term.