Keyphrases
- semantic query
- query processing
- efficient processing
- optimization algorithm
- web search engines
- query language
- semantic web
- global optimization
- query logs
- optimization method
- database
- optimization problems
- optimization strategies
- semantic network
- natural language
- high level
- range queries
- execution plan
- semantic constraints
- semantically similar
- query formulation
- query execution
- semantic markup
- semantic similarity
- domain ontology
- semantic annotation
- query evaluation
- user queries
- relational databases
- retrieval systems
- multi criteria
- attribute values
- semantic information
- query plan
- description logics
- data sources
- multi objective
- objective function
- databases