Query Answering in the Description Logic Horn-.
Thomas EiterGeorg GottlobMagdalena OrtizMantas SimkusPublished in: JELIA (2008)
Keyphrases
- description logics
- query answering
- conjunctive query answering
- dl lite
- transitive roles
- data exchange
- conjunctive queries
- np hard
- data complexity
- integrity constraints
- knowledge base
- reasoning tasks
- data integration
- knowledge representation
- ontology mappings
- answering queries
- computational properties
- ontology languages
- incomplete information
- model theoretic
- exptime complete
- horn clauses
- inconsistent databases
- semantic web
- inverse roles
- datalog programs
- query rewriting
- owl ontologies
- databases
- schema mappings
- reasoning problems
- owl dl
- query optimization
- data management
- database systems
- machine learning