The CaLiGraph Ontology as a Challenge for OWL Reasoners
  CaLiGraph is a large-scale cross-domain knowledge graph generated from
Wikipedia by exploiting the category system, list pages, and other list
structures in Wikipedia, containing more than 15 million typed entities and
around 10 million relation assertions. Other than knowledge graphs such as
DBpedia and YAGO, whose ontologies are comparably simplistic, CaLiGraph also
has a rich ontology, comprising more than 200,000 class restrictions. Those two
properties - a large A-box and a rich ontology - make it an interesting
challenge for benchmarking reasoners. In this paper, we show that a reasoning
task which is particularly relevant for CaLiGraph, i.e., the materialization of
owl:hasValue constraints into assertions between individuals and between
individuals and literals, is insufficiently supported by available reasoning
systems. We provide differently sized benchmark subsets of CaLiGraph, which can
be used for performance analysis of reasoning systems.
