The Alyssa System at TREC 2006: A Statistically-Inspired Question Answering System.
Dan ShenJochen L. LeidnerAndreas MerkelDietrich KlakowPublished in: TREC (2006)
Keyphrases
- question answering
- question answering systems
- information retrieval
- test collection
- retrieval effectiveness
- natural language
- question classification
- data sets
- information extraction
- blog opinion retrieval
- expert search
- named entities
- natural language processing
- relevance feedback
- qa clef
- evaluation campaigns
- biomedical information retrieval
- real time
- pseudo relevance feedback
- passage retrieval
- ad hoc retrieval
- document level
- query expansion
- weighting schemes
- open domain
- answer extraction
- trec blog track