Keyphrases
- structured data
- semi structured
- semi structured data
- unstructured data
- relational data
- information extraction
- data sources
- keyword search
- structured information
- xml documents
- free text
- textual data
- unstructured text
- distance measure
- distance function
- semistructured data
- linked data
- metadata
- structured databases
- structured and unstructured data
- graph data
- structured queries
- keyword queries
- data model
- social networks
- data sets