Keyphrases
- information retrieval
- test collection
- question answering
- retrieval effectiveness
- pseudo relevance feedback
- expert search
- biomedical information retrieval
- evaluation campaigns
- blog opinion retrieval
- image retrieval
- ad hoc retrieval
- trec ad hoc
- trec blog track
- ir evaluation
- interactive query expansion
- topic detection and tracking
- neural network
- relevance feedback
- real world