Keyphrases
- database
- response time
- query expansion
- real time
- query processing
- relevance feedback
- range queries
- search mechanism
- answering queries
- query formulation
- search queries
- query evaluation
- user queries
- retrieval systems
- aggregate queries
- data objects
- software architecture
- user interaction
- management system
- data sources
- keywords
- user defined
- communication cost
- hardware implementation
- database queries
- query language
- website
- databases
- multiple queries