| uniform resource locator | URL: The recognizable website address used to access a landing page. |
| clustering | the organising of search results when multiple listings appear for one website. Clustering also refers to the way search engines group different authorities on a certain topic together, showing their relationship. |
| micro opacity | Noun phrase. The measurement of site-level opacity (q.v.). |
| search terms | The word or phrase a user writes into a search box in order to get information that matches. |
| hub | Noun. A document that links out to many other documents devoted to a single topic. Think of any category page in a major directory like Yahoo! or DMOZ. All the documents linked to are assumed to be authorities (sort of a circular logic). In Jon Kleinbergs HITS algorithm (q.v.) (as well as the CLEVER, ExpertRank, and Edison algorithms) a hub is a document about a specific topic that links to many experts in the topic. Cf. Expert. |
