Keyphrases
- query processing
- query language
- database queries
- web search engines
- query evaluation
- efficient processing
- response time
- user queries
- range queries
- probabilistic databases
- answering queries
- aggregate queries
- relational database systems
- query logs
- search queries
- indexing techniques
- user defined
- complex queries
- inverted index
- expressive power
- spatial data
- neural network
- data sets