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The Downgrading Axioms Challenge for Qualitative Composition of Food Ingredients

Bernd Krieg-Brückner; Mark Robin Nolte; Mihai Pomarlan; Michaela Kümpel
In: Semantic Reasoning Evaluation Challenge, 21st International Semantic Web Conference. International Semantic Web Conference (ISWC-2022), Semantic Reasoning Evaluation Challenge, located at 21st International Semantic Web Conference, October 23-27, Hangzhou, China, CEUR Workshop Proceedings, Vol. 3337, CEUR Workshop Proceedings, 10/2022.


Qualitatively graded relations provide increased granularity for fine-grain modelling, and achieve qualitative abstraction from quantitative data. We focus on composite dosage for food ingredients in the BAALL Ontology (of considerable size): weight ratios, Alcohol By Volume, etc. To deduce the overall qualitative composition by reasoning, axioms for downgrading are introduced. These impose a heavy load on reasoning such that conventional reasoners fail.

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