Keyphrases
- complex queries
- answering queries
- query processing
- query evaluation
- user queries
- range queries
- range aggregate queries
- response time
- reachability queries
- database queries
- query formulation
- tree patterns
- pre computed
- query plan
- efficient processing
- cost model
- indexing schemes
- database
- query patterns
- indexing structure
- execution plan
- query terms
- multiple queries
- data sources
- boolean queries
- query answers
- aggregate queries
- query types
- search queries
- approximate answers
- index structure
- query suggestion
- query answering
- indexing techniques
- query result
- query graph
- retrieval systems
- user intent
- xpath queries
- query optimization
- query logs
- query language
- inverted index
- storage cost
- query cost
- query complexity
- web search engines
- xml query languages
- search engine
- path expressions
- data objects
- r tree
- result set
- skyline queries
- web search
- similarity queries
- information retrieval systems
- relational databases