Keyphrases
- semantic query
- query language
- range queries
- query processing
- response time
- database
- web search engines
- user queries
- semantic similarity
- efficient processing
- database queries
- query logs
- query evaluation
- data sources
- semantic information
- index structure
- natural language
- complex queries
- semantic knowledge
- retrieval systems
- semantic network
- search queries
- multi attribute
- high level
- multi criteria
- semantic features
- data model
- cp nets
- search engine