Keyphrases
- response time
- database
- query processing
- data sources
- data structure
- relevance feedback
- query evaluation
- database queries
- user queries
- query execution
- keywords
- query formulation
- retrieval accuracy
- complex queries
- query expansion
- efficient processing
- object retrieval
- indexing techniques
- search queries
- range queries
- query terms
- vector space
- user defined
- retrieval systems
- web search engines
- multi dimensional