Keyphrases
- answering queries
- query language
- approximate answers
- query processing
- response time
- query formulation
- query evaluation
- database
- aggregate queries
- efficient processing
- complex queries
- range queries
- query answering
- search queries
- query logs
- user defined
- topic maps
- retrieval systems
- user queries
- data model
- metadata
- conceptual knowledge
- query types
- prior art
- neural network