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