Keyphrases
- information retrieval
- test collection
- clef ip
- question answering
- real time
- data streams
- retrieval effectiveness
- neural network
- streaming data
- transactional data
- reuters corpus volume
- emergency situations
- query performance prediction
- multi stream
- intellectual property
- ad hoc retrieval
- real time tracking
- human factors
- relevance judgments
- sliding window
- active learning
- natural language