Keyphrases
- query processing
- data structure
- database
- query expansion
- response time
- query execution
- dynamic programming
- relevance feedback
- cost model
- user queries
- information retrieval
- query formulation
- complex queries
- retrieval method
- data objects
- query evaluation
- retrieval systems
- genetic algorithm
- user defined
- integrity constraints
- closed form
- query optimization
- multi dimensional
- worst case
- database queries
- data sources
- query language
- optimal solution
- original query