J. Euzenat and N. Noy:
In the same way that the Web is composed of heterogeneous resources the Semantic Web
is composed of heterogeneous ontologies. In this session Jerome and Natasha will discuss
what interoperability means at the semantic level.
Additionally, they will outline different techniques which can be used to address this problem.
At the end of this session attendees will understand the notions and issues underlying semantic
Matching is a key operation for enabling the Semantic Web since it takes
as input ontologies, each consisting of a set of discrete entities (e.g.,
tables, XML elements, classes, properties), and determines as output the
relationships (e.g., equivalence, subsumption) holding between those
entities. In this tutorial we introduce, via examples, the ontology
matching problem and its application domains. We provide a detailed
discussion of the techniques used for ontology matching with the help of a
classification of matching approaches. We overview state of the art
systems in light of the classification presented, indicating which part of
the solution space they cover. Finally, we outline future challenges in
the field of ontology matching.
Ontology Mapping and Alignment,
Ontology mapping, alignment, and translation has been an active
research component of the general research on semantic integration
and interoperability. In this talk, we discuss types of heterogeneity
between ontologies, classify methods for discovering mappings between
both ontology concepts and data, and talk about various tasks where
mappings are used.