Keyphrases
- test collection
- information retrieval
- question answering
- biomedical information retrieval
- data streams
- clef ip
- continuous queries
- real time
- transactional data
- retrieval effectiveness
- ad hoc retrieval
- stream processing
- relevance judgments
- multi stream
- real time tracking
- co occurrence
- pseudo relevance feedback
- relevant documents
- sliding window
- active learning
- query expansion