Compilation and Approximation of Conjunctive Queries by Concept Descriptions.
François GoasdouéMarie-Christine RoussetPublished in: Description Logics (2002)
Keyphrases
- conjunctive queries
- concept descriptions
- data complexity
- ontology languages
- query answering
- inductive learning
- description logics
- query evaluation
- query language
- integrity constraints
- np complete
- concept drift
- representation language
- constructive induction
- query containment
- data exchange
- special case
- knowledge base
- language independent
- expressive power
- schema mappings
- expert systems
- object oriented
- domain theory
- data model
- data sets
- data integration
- semantic web