Explanation Support for OWL Authoring

Thorsten Liebig, Friedrich von Henke, and Olaf Noppens

Recent analyses of ontology engineering efforts showed that it is not only novices which are commonly faced with com- prehension problems or misconceptions of modeling conse- quences. A better understanding can be fundamentally sup- ported by on-demand explanations of subsumption, the core inference service of ontology reasoning systems. In this pa- per we describe ongoing work towards a systems for explain- ing subsumption for a significant fraction of the Description Logic underlying OWL Lite. Our explainer uses a tableau- based approach to generate step by step quasi-natural lan- guage explanations. We also comment on related work and discuss future explaining features.

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