Authors:
Adrianna Kozierkiewicz
and
Marcin Pietranik
Affiliation:
Faculty of Computer Science and Management, Wroclaw University of Science and Technology, Wybrzeze Wyspianskiego 27, 50-370 Wroclaw, Poland
Keyword(s):
Ontology Alignment, Ontology Evolution, Knowledge Management.
Abstract:
Ontologies are becoming a popular and convenient way for knowledge representation - they can store information about objects and relations between them. However, nothing is constant and new information may appear, therefore those alterations should be reflected both in an ontology as well as in alignment between two ontologies if the knowledge about some domain is distributed in many sources. In the literature, it is possible to find approaches devoted to tracking changes in ontologies, but tools for updating ontology alignment are limited, especially devoted to the level of relations. It became a motivation for this work, thus, the aim of this paper is split into two parts. Firstly, we will present a criterion that tells us that modification in an ontology on the relation level is significant, and how it influences the maintained alignment (also on the relation level). Next, an algorithm for simple revalidation of existing mappings is proposed.