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Erschienen in:
2012 | OriginalPaper | Buchkapitel
A Formal Semantics for Weighted Ontology Mappings
verfasst von : Manuel Atencia, Alexander Borgida, Jérôme Euzenat, Chiara Ghidini, Luciano Serafini
Erschienen in: The Semantic Web – ISWC 2012
Verlag: Springer Berlin Heidelberg
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Ontology mappings are often assigned a weight or confidence factor by matchers. Nonetheless, few semantic accounts have been given so far for such weights. This paper presents a formal semantics for weighted mappings between different ontologies. It is based on a classificational interpretation of mappings: if
O
1
and
O
2
are two ontologies used to classify a common set
X
, then mappings between
O
1
and
O
2
are interpreted to encode how elements of
X
classified in the concepts of
O
1
are re-classified in the concepts of
O
2
, and weights are interpreted to measure how precise and complete re-classifications are. This semantics is justifiable by extensional practice of ontology matching. It is a conservative extension of a semantics of crisp mappings. The paper also includes properties that relate mapping entailment with description logic constructors.