Concept-based Queries: Combining and Reusing Linguistic Corpus Formats and Query Languages.
Felix SasakiAndreas WittDafydd GibbonThorsten TrippelPublished in: LREC (2004)
Keyphrases
- query language
- query evaluation
- data model
- expressive power
- recursive queries
- database
- constraint databases
- conjunctive queries
- relational algebra
- visual query language
- linguistic features
- linguistic information
- tree pattern queries
- database query languages
- linguistic patterns
- natural language
- regular expressions
- query processing
- database queries
- transitive closure
- relational calculus
- metadata
- natural language text
- query engine
- query containment
- sparql queries
- relational model
- language constructs
- retrieval systems
- relational operators
- text categorization
- learning objects
- response time
- relational query languages