Keyphrases
- information retrieval
- test collection
- retrieval effectiveness
- question answering
- pseudo relevance feedback
- blog opinion retrieval
- ad hoc retrieval
- relevance feedback
- biomedical information retrieval
- databases
- ir evaluation
- evaluation campaigns
- query expansion
- data mining
- data sets
- neural network
- expert search
- topic detection and tracking
- okapi bm
- trec blog track