Keyphrases
- query processing
- query language
- query evaluation
- efficient processing
- response time
- answering queries
- wide range
- range queries
- search queries
- query logs
- databases
- probabilistic databases
- tree patterns
- query formulation
- complex queries
- user queries
- web search engines
- range data
- retrieval systems
- scale space
- web search
- data structure
- access methods
- aggregate queries
- search engine
- data sets
- boolean queries
- query types