Keyphrases
- database
- user queries
- query processing
- query formulation
- response time
- data structure
- vector space
- keywords
- data sources
- relevance feedback
- parallel processing
- normalization method
- shared memory
- query expansion
- parallel algorithm
- similarity search
- query terms
- range queries
- query evaluation
- database queries
- retrieval method
- logic programs
- complex queries
- multi dimensional
- object retrieval
- nonmonotonic logics
- autoepistemic logic
- stable model semantics
- databases