Keyphrases
- information retrieval
- test collection
- question answering
- retrieval effectiveness
- digital world
- ad hoc retrieval
- learning experience
- biomedical information retrieval
- expert search
- relevance feedback
- search tools
- trec web
- ir evaluation
- online resources
- retrieval model
- website
- relevance judgments
- short queries
- topic detection and tracking
- pseudo relevance feedback
- evaluation campaigns
- natural language processing