Keyphrases
- database
- query processing
- user queries
- response time
- query expansion
- keywords
- user defined
- first order logic
- search queries
- data sources
- relevance feedback
- query evaluation
- user interaction
- database queries
- query formulation
- vector space
- boolean queries
- similarity search
- multi dimensional
- data structure
- retrieval systems
- data management
- information retrieval systems
- range queries
- keyword search
- special case
- indexing techniques
- retrieval method
- complex queries
- metadata
- efficient processing
- machine learning