Hendrik Thomas

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The heterogeneity of ontologies is a major obstacle to the promised interoperability of knowledge in the Semantic Web. Ontology mappings can help to mitigate the effects by specifying the correspondences between related ontologies. However, the creation of mappings is still complex and time-consuming and therefore it is appealing to discover existing(More)
A common approach to mitigate the effects of ontol-ogy heterogeneity is to discover and express the specific correspondences between different ontologies. An open research question is: how should such ontology mappings be represented. In recent years several proposals for an ontology mapping representation have been published, but till today no format is(More)
Ontology matching and mapping is of critical importance to effective consumption of distributed and heterogeneous data-sets in today's Web of Data. Since 2004 the Ontology Alignment Evaluation Initiative (OAEI) provides a number of complex challenges to evaluate the performance of the increasing number of matching tools and methods. This leads to the(More)
— A common approach to mitigate the effects of ontol-ogy heterogeneity is to discover and express the specific correspondences (mappings) between different ontologies. An open research question is: how should such ontology mappings be represented? In recent years several proposals for an ontology mapping representation have been published, but as yet no(More)
Integration of disparate information resources has long been a significant research topic. Semantic approaches can help by allowing expression of concepts divorced from syntax and allowing rich, structured meta-data to be published in a form that is amenable to machine processing, reasoning and inter-domain concept mapping. However the creation of mappings,(More)
To realize the vision of the semantic web it is essential to be able to exchange formal modeled knowledge between applications and humans without loss of meaning. In this paper, we focus on questions relating to meaning, interpretation and subject identity in modern semantic web languages. Based on the semiotic triangle we show that topics as well as RDF(More)
Main objective of the COLDLib project is the development of a global knowledge space for the interdisciplinary research network " Collaboration in Science and in Technology "-COLLNET to collect, combine and enrich the existing knowledge in the field of quantitative aspects of science of science, collaboration and communication in science and technology,(More)
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