The success of machine represented web known as semantic web largely hinges on
ontologies. Ontology is a data modeling technique for structured data repository premised …

Context-aware computing enriches the capabilities of intelligent devices complemented with
smart applications and helps establish smart ecosystems in fields such as Ambient …

We present the OWL API, a high level Application Programming Interface (API) for working
with OWL ontologies. The OWL API is closely aligned with the OWL 2 structural specification …

Since achieving W3C recommendation status in 2004, the Web Ontology Language (OWL)
has been successfully applied to many problems in computer science. Practical experience …

Handbook of Knowledge Representation describes the essential foundations of Knowledge
Representation, which lies at the core of Artificial Intelligence (AI). The book provides an up …

The evaluation of ontologies is still an emerging field. A set of preliminary ideas and
frameworks have been suggested in the literature. This chapter collects ontology quality …

In this chapter, we explain what description logics are and why they make good ontology
languages. In particular, we introduce the description logic SHIQ, which has formed the …

In this paper, we propose a set of tasks that are relevant for the modular reuse of ontologies.
In order to formalize these tasks as reasoning problems, we introduce the notions of …

Finding the justifications of an entailment (that is, all the minimal set of axioms sufficient to
produce an entailment) has emerged as a key inference service for the Web Ontology …

Ontologies are rapidly becoming popular in various research fields. There is a tendency
both in converting existing models into ontologies and in creating new models. In this work …