Keyphrases
- query processing
- query language
- response time
- web search engines
- query logs
- user queries
- query evaluation
- database
- neural network
- database queries
- user defined
- efficient processing
- aggregate queries
- range queries
- query types
- data sources
- prior art
- probabilistic databases
- answering queries
- approximate answers
- query formulation
- keyword queries
- complex queries
- search queries
- retrieval systems
- relational databases
- data sets