Gradients de prototypicalité, mesures de similarité et de proximité sémantique : une contribution à l'Ingénierie des Ontologies.

Xavier Aimé 1
1 Connaissances et Décisions
LINA - Laboratoire d'Informatique de Nantes Atlantique
Abstract : In cognitive psychology, the concept of prototype appears in a central way in the conceptual representations. In our works, we propose to introduce this concept within the activities concerned by Ontology Engineering and its models of representation. Our semiotic approach is based on the three dimensions on conceptualization: intension (properties), expression (terms), and extension (instances). It adds, in addition to the ontology, some user's additional knowledge (weighting of the properties, corpus, instances). We balance "is-a" links, terms and instances in a hierarchy of concepts, by respectively conceptual, lexical and extensional prototypicality gradients. Our approach was implemented in an industrial document management and information research system for Tennaxia company - a company which offers service and software for legal intelligence in the environment domain. It led to the development of an ontology of the Environment domain, and two software: TooPrag an application dedicated to the calculation of the prototypicality gradients, and the semantic search engine Theseus which exploits the prototypicality gradients. We finally extended our approach to the definition of two new semantic measures inspired by the laws of similarity and proximity as theorized by gestalt psychologists: Semiosem, a measure of similarity, and Proxem, a measure of proximity.
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Xavier Aimé. Gradients de prototypicalité, mesures de similarité et de proximité sémantique : une contribution à l'Ingénierie des Ontologies.. Intelligence artificielle [cs.AI]. Université de Nantes, 2011. Français. 〈tel-00660916〉

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