tailieunhanh - Báo cáo khoa học: "Complexity assumptions in ontology verbalisation"

We describe the strategy currently pursued for verbalising OWL ontologies by sentences in Controlled Natural Language (., combining generic rules for realising logical patterns with ontology-specific lexicons for realising atomic terms for individuals, classes, and properties) and argue that its success depends on assumptions about the complexity of terms and axioms in the ontology. | Complexity assumptions in ontology verbalisation Richard Power Department of Computing Open University UK Abstract We describe the strategy currently pursued for verbalising OWL ontologies by sentences in Controlled Natural Language . combining generic rules for realising logical patterns with ontology-specific lexicons for realising atomic terms for individuals classes and properties and argue that its success depends on assumptions about the complexity of terms and axioms in the ontology. We then show through analysis of a corpus of ontologies that although these assumptions could in principle be violated they are overwhelmingly respected in practice by ontology developers. 1 Introduction Since OWL Web Ontology Language was adopted as a standard in 2004 researchers have sought ways of mediating between the decidedly cumbersome raw code and the human users who aspire to view or edit it. Among the solutions that have been proposed are more readable coding formats such as Manchester OWL Syntax Hor-ridge et al. 2006 and graphical interfaces such as Protege Knublauch et al. 2004 more speculatively several research groups have explored ways of mapping between OWL and controlled English with the aim of presenting ontologies both for viewing and editing in natural language Schwit-ter and Tilbrook 2004 Sun and Mellish 2006 Kaljurand and Fuchs 2007 Hart et al. 2008 . In this paper we uncover and test some assumptions on which this latter approach is based. Historically ontology verbalisation evolved from a more general tradition predating OWL and the Semantic Web that aimed to support knowledge formation by automatic interpretation of texts authored in Controlled Natural Languages Fuchs and Schwitter 1995 . The idea is to establish a mapping from a formal language to a natural subset of English so that any sentence conforming to the Controlled Natural Language CNL can be assigned a single interpretation in the formal language and conversely any .

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