Data Model and Query Constructs for Versatile Web Query Languages: State-of-the-Art and Challenges for Xcerpt.
François BryTim FurcheBenedikt LinsePublished in: PPSWR (2006)
Keyphrases
- data model
- query language
- language constructs
- query evaluation
- database
- query interface
- semistructured data
- data sources
- recursive queries
- database systems
- temporal queries
- object oriented
- expressive power
- relational algebra
- visual query language
- web queries
- web databases
- databases
- semi structured
- database management systems
- website
- keyword search
- web pages
- query processing
- relational model
- xml data
- data integration
- query engine
- rdf data
- web documents
- semi structured data
- rdf graphs
- search logs
- web mining
- conjunctive queries
- sparql queries
- xml documents
- keywords
- response time
- relational operators
- web data
- relational data model
- linked data
- regular expressions
- regular path queries
- xml query languages
- query execution
- relational queries
- web search
- semantic web
- web resources
- user queries
- structured data
- web search engines