Keyphrases
- structured data
- semi structured data
- linked data
- structured information
- textual data
- semi structured
- information extraction
- unstructured data
- free text
- relational data
- unstructured text
- xml documents
- website
- web data
- structured and unstructured data
- data sources
- keyword search
- semantic web
- web pages
- web databases
- keyword queries
- database
- structured databases
- unstructured information
- web documents
- information retrieval
- tree structured data
- semistructured data
- page contents
- web search
- text mining
- end users
- data sets