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A Pattern-Based Framework of Change Operators for Ontology EvolutionMuhammad Javed, Yalemisew M. Abgaz, and Claus Pahl Centre for Next Generation Localization (CNGL), School of Computing, Dublin City University, Dublin 9, Irelandmjaved@computing.dcu.ie yabgaz@computing.dcu.ie cpahl@computing.dcu.ie Abstract. Change operators are the building blocks of ontology evolution. Different layers of change operators have been suggested. In this paper, we present a novel approach to deal with ontology evolution, in particular, change representation as a pattern-based layered operator framework. As a result of an empirical study, we identify four different levels of change operators based on the granularity, domain-specificity and abstraction of changes. The first two layers are based on generic structural change operators, whereas the next two layers are domain-specific change patterns. These layers of change patterns capture the real changes in the selected domains. We discuss identification and integration of the different layers. Keywords: Ontology evolution, change operators, pattern-based change LNCS 5872, p. 544 ff. lncs@springer.com
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