Theoretically Optimal Datalog Rewritings for OWL 2 QL Ontology-Mediated Queries.
Meghyn BienvenuStanislav KikotRoman KontchakovVladimir V. PodolskiiMichael ZakharyaschevPublished in: Description Logics (2016)
Keyphrases
- query language
- conjunctive queries
- query rewriting
- semantic web
- query answering
- ontology based data access
- expressive power
- query evaluation
- ontology languages
- unions of conjunctive queries
- query containment
- knowledge representation
- answering queries
- owl ontologies
- answering queries using views
- data model
- data exchange
- deductive databases
- regular path queries
- rdf data
- database
- knowledge base
- owl dl
- query processing
- ontology reasoning
- response time
- semantic web technologies
- tree patterns
- probabilistic databases
- semantic web standards
- relational calculus
- transitive closure
- xml query languages
- datalog programs
- queries using views
- view definitions
- data complexity
- data sources
- rewriting queries using views
- web ontology language
- integrity constraints
- logic programming
- aggregate queries
- semistructured data