Keyphrases
- structured data
- semi structured data
- linked data
- structured information
- textual data
- semi structured
- web databases
- free text
- relational data
- information extraction
- data sources
- structured and unstructured data
- structured databases
- unstructured data
- xml documents
- website
- keyword queries
- unstructured text
- keyword search
- web data
- semantic web
- end users
- metadata
- web pages
- web mining
- structured queries
- unstructured information
- information access
- web documents
- database systems
- semistructured data
- search interface
- information management
- web content
- graph kernels
- search engine
- natural language processing
- tree structured data
- databases