Keyphrases
- complex queries
- answering queries
- query processing
- user queries
- response time
- query evaluation
- range queries
- database queries
- reachability queries
- pre computed
- efficient processing
- query formulation
- range aggregate queries
- cost model
- tree patterns
- database
- index structure
- indexing schemes
- approximate answers
- multiple queries
- data sources
- query patterns
- query terms
- query result
- search queries
- query plan
- query types
- boolean queries
- query complexity
- execution plan
- aggregate queries
- original query
- query cost
- storage cost
- result set
- indexing structure
- similarity queries
- query graph
- query answering
- xml query languages
- query suggestion
- data structure
- inverted index
- query language
- skyline queries
- web search engines
- keyword queries
- data objects
- query expansion
- retrieval systems
- query optimization
- logical formulas
- query execution
- multi dimensional