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Représentation des connaissances sémantiques lexicales de la Théorie Sens-Texte : conceptualisation, représentation, et opérationnalisation des définitions lexicographiques

Maxime Lefrançois 1
1 WIMMICS - Web-Instrumented Man-Machine Interactions, Communities and Semantics
CRISAM - Inria Sophia Antipolis - Méditerranée , Laboratoire I3S - SPARKS - Scalable and Pervasive softwARe and Knowledge Systems
Abstract : We present our research in applying knowledge engineering to linguistic predicates and lexicographic definitions of the Meaning-Text Theory (MTT). We adopt a three-step methodology. 1. We first show how the MTT conceptualization should be extended to ease its formalization. We justify the need of defining a new graph-based deep semantic level. We define the notion of deep semantic unit types and its actantial structure, so that their hierarchical organization may correspond to a hierarchy of meanings, inside which actantial structures are inherited and specialized. We re-conceptualize lexicographic definitions at the deep semantic level, and at the level of dictionaries. Finally, we present a definition editor prototype based on graph direct manipulation, which will allow us, in future work, to integrate our formal model into explanatory combinatorial lexicographic projects. 2. We then propose a knowledge representation formalism (KR) adapted for this conceptualization. We demonstrate that Description Logics and the Conceptual Graphs formalism do not fit our needs. This leads us to construct a new knowledge representation formalism: the Unit Graphs formalism. 3. Finally, we operationalize the Unit Graphs formalism. We assign it a formal semantic model, which we create based on model theory and relational algebra. We then show that the reasoning decidability conditions match the intuitions that lexicographers have. We also provide an implementation using semantic web standards, which enable us to use existing architectures for sharing, interoperability, and knowledge querying over the web of lexical linked data.
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Maxime Lefrançois. Représentation des connaissances sémantiques lexicales de la Théorie Sens-Texte : conceptualisation, représentation, et opérationnalisation des définitions lexicographiques. Autre [cs.OH]. Université Nice Sophia Antipolis, 2014. Français. ⟨NNT : 2014NICE4043⟩. ⟨tel-01071945v2⟩

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