Temporal Description Logic for Ontology-Based Data Access (Extended Version)
This work addresses the challenge of integrating temporal data with ontologies for improved data access, though it appears incremental as it builds upon existing OWL 2 QL standards.
The authors tackled the problem of accessing temporal data using ontologies by designing TQL, a temporal description logic that extends OWL 2 QL, enabling temporal conceptual modeling and ensuring first-order rewritability of conjunctive queries for data with validity time.
Our aim is to investigate ontology-based data access over temporal data with validity time and ontologies capable of temporal conceptual modelling. To this end, we design a temporal description logic, TQL, that extends the standard ontology language OWL 2 QL, provides basic means for temporal conceptual modelling and ensures first-order rewritability of conjunctive queries for suitably defined data instances with validity time.