Keyphrases
- structured data
- web search
- semi structured
- search engine
- web search engines
- unstructured data
- relational data
- free text
- information extraction
- search result
- data sources
- structured information
- semi structured data
- xml documents
- keyword search
- textual data
- semistructured data
- structured databases
- web pages
- linked data
- query logs
- metadata
- text data
- databases
- unstructured text
- information management
- ranking functions
- document collections
- information retrieval
- machine learning
- structured queries
- data sets