Keyphrases
- structured data
- semi structured
- information extraction
- free text
- semi structured data
- xml documents
- relational data
- linked data
- structured and unstructured data
- structured information
- unstructured data
- data sources
- keyword search
- textual data
- semistructured data
- metadata
- data sets
- structured queries
- unstructured text
- object oriented
- end users
- text data
- genetic algorithm
- databases