We discuss the use of various temporal knowledge representation formalisms for ontology-
mediated query answering over temporal data. In particular, we analyse ontology and query …

We advocate datalogMTL, a datalog extension of a Horn fragment of the metric temporal
logic MTL, as a language for ontology-based access to temporal log data. We show that …

We propose a novel framework for ontology-based access to temporal log data using a
datalog extension datalogMTL of the Horn fragment of the metric temporal logic MTL. We …

We design temporal description logics (TDLs) suitable for reasoning about temporal
conceptual data models and investigate their computational complexity. Our formalisms are …

Ontology-based data access (OBDA) generalizes query answering in relational databases. It
allows to query a database by using the language of an ontology, abstracting from the actual …

Aiming at ontology-based data access over temporal, in particular streaming data, we
design a language of ontology-mediated queries by extending OWL 2 QL and SPARQL with …

Ontology-based data access (OBDA) generalizes query answering in databases towards
deductive entailment since (i) the fact base is not assumed to contain complete knowledge …

We investigate ontology-based data access to temporal data. We consider temporal
ontologies given in linear temporal logic LTL interpreted over discrete time (Z,<). Queries are …

Aiming at ontology-based data access to temporal data, we design two-dimensional
temporal ontology and query languages by combining logics from the (extended) DL-Lite …

Context-aware systems use data collected at runtime to recognize certain predefined
situations and trigger adaptations. This can be implemented using ontology-based data …