Keyphrases
- biomedical information retrieval
- expert search
- test collection
- information retrieval
- learning to rank
- question answering
- ranking algorithm
- ranking functions
- web search
- ad hoc information retrieval
- ranked list
- clef ip
- trec test collections
- retrieval effectiveness
- case study
- document retrieval
- ad hoc retrieval
- document level
- entity ranking
- query expansion
- language model
- information retrieval systems
- relevance judgments
- human judgments
- document ranking
- patent retrieval
- biomedical text
- relevance feedback