Schema Evolution publication categorizer

system description / demo

One of the major problems of large scale, distributed and evolving ontologies
is the potential introduction of inconsistencies. In this paper we survey
four different approaches to handling inconsistency in DL-based ontologies: consistent
ontology evolution, repairing inconsistencies, reasoning in the presence of
inconsistencies and multi-version reasoning. We present a common formal basis
for all of them, and use this common basis to compare these approaches. We
discuss the different requirements for each of these methods, the conditions under

To effectively use ontologies on the Web, it is essential that changes in ontologies are managed well. This paper analyzes the topic of ontology versioning in the context of the Web by looking at the characteristics of the version relation between ontologies and at the identification of online ontologies. Then, it describes the design of a web-based system that helps users to manage changes in ontologies.

Mappings between ontologies are
changes in the ontologies. In this explain
a mechanism to define modular
and mappings in a way that allows containment
of terminological reasoning.
developed a change detection and
that predicts the effect of changes
hierarchy. This method determines
changes in one ontology affect the inside
other ontologies or not. Together, mechanisms
allow ontologies to evolve unpredictable
effects on other ontologies.
we also apply these methods in a
undertaken in a EU IST project.

We discuss four linguistic ontology-mapping techniques and
evaluate them on real-life ontologies in the domain of food. Furthermore
we propose a method to combine ontology-mapping techniques with high
Precision and Recall to reduce the necessary amount of manual labor and
computation.