Keyphrases
- query language
- query evaluation
- query processing
- database
- special case
- data sources
- answering queries
- efficient processing
- database queries
- user queries
- data objects
- neural network
- probabilistic databases
- range queries
- web search engines
- response time
- user defined
- query logs
- search queries
- complex queries
- query formulation
- query expansion
- data model
- query types