Knowledge-based Information Retrieval with Wikipedia.
Google Tech Talks
October 31, 2008
ABSTRACT
In knowledge-based information retrieval, search engines consult external sources of knowledge ontologies, taxonomies, thesauri, glossaries, gazeteers to help process the documents they encounter and the requests they receive. The idea is old, obvious, and compelling but results have been singularly unimpressive. The best performing and most widely used search systems are [...]