Keyphrases
- test collection
- information retrieval
- relevance feedback
- relevance judgments
- relevance assessments
- okapi bm
- retrieval effectiveness
- relevance judgements
- relevant documents
- ir evaluation
- question answering
- human judgments
- search tasks
- ad hoc retrieval
- blog distillation
- number of relevant documents
- user behaviour
- resource selection
- language model
- document retrieval
- trec collections
- pseudo relevance feedback
- ranking functions
- biomedical information retrieval
- retrieval systems
- document collections