Keyphrases
- test collection
- information retrieval
- question answering
- retrieval effectiveness
- relevance judgments
- federated databases
- ad hoc retrieval
- digital libraries
- biomedical information retrieval
- social sciences
- distributed systems
- information retrieval systems
- reuters corpus volume
- distributed data
- retrieval model
- retrieval systems
- average precision
- text mining
- expert search
- relevance judgements
- relevance feedback
- ir evaluation
- okapi bm
- data sources
- blog opinion retrieval