Keyphrases
- test collection
- information retrieval
- question answering
- retrieval effectiveness
- biomedical information retrieval
- expert search
- pseudo relevance feedback
- ad hoc retrieval
- neural network
- evaluation campaigns
- ir evaluation
- relevance judgments
- query expansion
- relevance assessments
- blog opinion retrieval
- relevance feedback
- information extraction
- question answering systems
- query processing
- information systems
- search engine
- okapi bm
- databases