Much of biology works by applying prior knowledge ('what is known') to an unknown entity,
rather than the application of a set of axioms that will elicit knowledge. In addition, the …

In recent years, as a knowledge-based discipline, bioinformatics has been made more
computationally amenable. After its beginnings as a technology advocated by computer …

Ontological Engineering refers to the set of activities that concern the ontology development
process, the ontology life cycle, the methods and methodologies for building ontologies, and …

We review the use on ontologies for the integration of heterogeneous information sources.
Based on an in-depth evaluation of existing approaches to this problem we discuss how …

Abstract ℰ ℒ EL is a simple tractable Description Logic that features conjunctions and
existential restrictions. Due to its favorable computational properties and relevance to …

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 …

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 …

Ontologies will play a pivotal rôle in the “Semantic Web”, where they will provide a source of
precisely defined terms that can be communicated across people and applications. OilEd, is …

Abstract Knowledge management research focuses on concepts, methods, and tools
supporting the management of human knowledge. The main objective of this paper is to …

Although the OWL Web Ontology Language adds considerable expressive power to the
Semantic Web it does have expressive limitations, particularly with respect to what can be …