Keyphrases
- database
- view selection
- query processing
- response time
- query rewriting
- relevance feedback
- multiple views
- query expansion
- query containment
- data structure
- data sources
- retrieval systems
- range queries
- regular path queries
- result set
- query evaluation
- retrieval method
- query formulation
- aggregate queries
- vector space
- user defined
- data management
- semistructured databases
- answering queries using views