In this paper we present KnowRob2, a second generation knowledge representation and
reasoning framework for robotic agents. KnowRob2 is an extension and partial redesign of …

We describe our method for benchmarking Semantic Web knowledge base systems with
respect to use in large OWL applications. We present the Lehigh University Benchmark …

Data warehouses are databases of a specific kind that periodically collect information about
the activities being performed by an organization. This information is then accumulated over …

There are many query languages (QLs) that can be used to query RDF and OWL ontologies
but neither type is satisfactory for querying OWL-DL ontologies. RDF-based QLs (RDQL …

RacerPro is a software system for building applications based on ontologies. The backbone
of RacerPro is a description logic reasoner. It provides inference services for terminological …

Existing BIM technologies do not provide links to product components that are needed to
facilitate the participation of manufacturers in the design and building processes. A deeper …

We discuss language architecture for the Semantic Web, and in particular different
proposals for extending this architecture with a rules component. We argue that an …

In this paper, we present an evaluation of four knowledge base systems (KBS) with respect
to use in large OWL applications. To our knowledge, no experiment has been done with the …

The growing popularity of semantic applications makes scalability of ontology reasoning
tasks increasingly important. In this work, we firstly analyze the ontology landscape on the …

Efficient query answering over ontologies is one of the most useful and important services to
support Semantic Web applications. Approximation has been identified as a potential way to …