Keyphrases
- relevance feedback
- database
- information retrieval
- response time
- query expansion
- query evaluation
- highly relevant
- query processing
- document relevance
- user queries
- complex queries
- retrieval systems
- relevance ranking
- result list
- relevance judgements
- relevant content
- relevance scores
- original query
- range queries
- information retrieval systems
- data structure
- database systems
- databases