Keyphrases
- structured data
- semi structured
- web search
- free text
- xml documents
- semi structured data
- information extraction
- data sources
- unstructured data
- structured information
- relational data
- search result
- unstructured text
- semistructured data
- metadata
- structured and unstructured data
- web search engines
- text data
- graph data
- keyword search
- structured databases
- structured queries
- text mining
- raw data
- database