Rough set semantics for identity on the Web

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Abstract

Identity relations are at the foundation of many logic-based knowledge representations. We argue that the traditional notion of equality, is unsuited for many realistic knowledge representation settings. The classical interpretation of equality is too strong when the equality statements are re-used outside their original context. On the Semantic Web, equality statements are used to interlink multiple descriptions of the same object, using owl:sameAs assertions. And indeed, many practical uses of owl:sameAs are known to violate the formal Leibniz-style semantics. We provide a more flexible semantics to identity by assigning meaning to the subrelations of an identity relation in terms of the predicates that are used in a knowledge-base. Using those indiscernability-predicates, we define upper and lower approximations of equality in the style of rought-set theory, resulting in a quality-measure for identity relations.

Original languageEnglish
Title of host publication14th International Conference on the Principles of Knowledge Representation and Reasoning, KR 2014
PublisherAAAI Press
Pages587-589
Number of pages3
ISBN (Electronic)9781577356578
Publication statusPublished - 2014
Event14th International Conference on the Principles of Knowledge Representation and Reasoning, KR 2014 - Vienna, Austria
Duration: 20 Jul 201424 Jul 2014

Conference

Conference14th International Conference on the Principles of Knowledge Representation and Reasoning, KR 2014
CountryAustria
CityVienna
Period20/07/1424/07/14

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