Keyphrases
- semantic web data
- keyword queries
- keyword search
- semantic web
- keyword search in relational databases
- structured data
- keywords
- information access
- user queries
- query evaluation
- semi structured
- graph structure
- database schema
- xml databases
- web search engines
- xml data
- query interface
- semantic search
- integrity constraints
- database
- conceptual model
- wordnet
- multi dimensional
- search engine
- information retrieval