Keyphrases
- structured data
- semi structured
- information extraction
- unstructured data
- xml documents
- relational data
- free text
- data sources
- semi structured data
- metadata
- structured databases
- keyword search
- unstructured text
- structured information
- textual data
- structured and unstructured data
- text data
- semistructured data
- linked data
- structured queries
- tree structured data
- text mining
- keyword queries
- graph data
- web mining
- business intelligence
- data processing