Keyphrases
- information retrieval
- test collection
- question answering
- clef ip
- information filtering
- pseudo relevance feedback
- relevance feedback
- query expansion
- retrieval effectiveness
- adaptive filtering
- filtering method
- biomedical information retrieval
- database
- relevance judgements
- patent retrieval
- ad hoc retrieval
- median filter
- multiscale
- case study
- neural network
- real time