Keyphrases
- relevance feedback
- relevance judgments
- query processing
- database
- information retrieval
- ad hoc retrieval
- query expansion
- response time
- database queries
- question answering
- retrieval effectiveness
- data sources
- data structure
- test collection
- retrieval systems
- pseudo relevance feedback
- query evaluation
- query performance prediction
- query formulation
- user queries
- user interaction
- search queries
- query terms
- retrieval accuracy
- average precision
- retrieval process
- relevant documents
- document level
- automatic query expansion
- data model