Keyphrases
- query processing
- multiple queries
- response time
- database
- query result
- query execution
- query evaluation
- query expansion
- relevance feedback
- user queries
- query optimization
- range queries
- data sources
- data structure
- search queries
- efficient processing
- database queries
- query types
- answering queries
- query formulation
- keywords
- prefetching
- main memory
- indexing techniques
- deep web
- retrieval systems
- multi dimensional
- queries involving
- relational databases
- web caching
- semantic caching