REVIEW OF ONTOLOGY ALGINMENT SYSTEMS

Abstract

Ontologies were developed to describe a given domain in the semantic web. However due to
variation in views of developers, ontologies are heterogeneous hence preventing interoperability.
Ontology alignment solves this heterogeneity problem by discovering relationships between
entities of different ontologies. Various ontology alignment systems have been developed over
the years. Different researches have been carried out in an attempt to review this area. However,
there is still a need for an up to date review of the ontology alignment systems in order to allow
continuous research in the field. In this paper, twelve different ontology alignment systems were
reviewed nine were found to be fully automatic while three are semi-automatic. Furthermore
most of the systems use a combination of different matching techniques while others use only
single matching technique.