Mereotopological reasoning about parts and (w)holes in bio-ontologies

  • Authors:
  • Stefan Schulz;Udo Hahn

  • Affiliations:
  • Universitätsklinikum Freiburg, Freiburg, Germany;Universität Freiburg, Freiburg, Germany

  • Venue:
  • Proceedings of the international conference on Formal Ontology in Information Systems - Volume 2001
  • Year:
  • 2001

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Abstract

We here deal with mereotopological properties of parts andassociated wholes, locations and empty spaces (holes), withparticular reference to biological structures. Our considerationslead to a basic ontology which contains 'solid object', 'hole' and'boundary' as mutually disjoint primitives. Formally, we embed therelations 'part-of' and 'location-of' into a parsimoniousdescription logic (ALC) and emulate partonomic and spatialreasoning involving these relations by terminological subsumption.In contrast to common conceptualizations, we do not distinguishbetween solids and the regions they occupy, as well as we allowsolids to have holes as proper parts. In order to support thesemodeling decisions, we discuss various concrete examples from humananatomy.