Keyphrases
- database
- response time
- query processing
- relevance feedback
- query formulation
- retrieval systems
- query execution
- user queries
- data structure
- face images
- aggregate queries
- human faces
- vector space
- query terms
- query evaluation
- data objects
- efficient processing
- face identification
- retrieval process
- database queries
- range queries
- attribute values
- query expansion
- information retrieval systems
- keywords
- databases