3 papers
cs.AI2025
A Multi-Axial Mindset for Ontology Design Lessons from Wikidata's Polyhierarchical Structure
Ege Atacan DoÄan, Peter F. Patel-Schneider
Traditional ontology design emphasizes disjoint and exhaustive top-level distinctions such as continuant vs. occurrent, abstract vs. concrete, or type vs. instance. These distincti…
cs.IR2024
Class Order Disorder in Wikidata and First Fixes
Peter F. Patel-Schneider, Ege Atacan DoÄan
Wikidata has a large ontology with classes at several orders. The Wikidata ontology has long been known to have violations of class order and information related to class order tha…
cs.AI2024
Disjointness Violations in Wikidata
Ege Atacan DoÄan, Peter F. Patel-Schneider
Disjointness checks are among the most important constraint checks in a knowledge base and can be used to help detect and correct incorrect statements and internal contradictions.…