A hub node is a graph node connected to an unusually large number of other nodes. In ontology path search, hubs can create technically valid but semantically misleading connections, so filtering them improves relevance. section 7.7.4
A practical hub-node filtering workflow is:
- Exclude shortest paths containing selected hubs, then inspect the reduced result set for remaining overly general entities. section 7.7.4
Zika virus path search
Paths between Zika virus and Infectious neuronitis passed through Infectious process and Inflammation, high-degree nodes that connected many unrelated infectious entities. Filtering reduced 11,185 paths to 9, although Viral disease remained overly general.
