Représentation de connaissances complexes : Un formalisme à base de rôles sémantiques

Abstract : The work presented in this thesis deals with knowledge representation. It is integrated in the project AMICAL (Interactive Multi-agents Architecture Fellow in Learning to Read) whose purpose is the development of an aided learning to read environment. This study focus on the search of a semantic representation of texts used in learning sessions. The problematics is to find a knowledge representation formalism which is capable of answering to a particular functional situation while taking into account various kinds of constraints. Three possibilities were presented : retain an existing knowledge representation formalism, make existing formalisms cooperate or propose a new formalism. The third solution has been taken after showing difficulties met by existing formalisms in filling some formulated constraints. We propose in this thesis a knowledge representation system based on knowledge structures named DCAS (Composite Description With Meaning). They are the basic units of reasoning. These structures are based on a set of various sorts of cognitive entities. We describe the different roles played by these cognitive entities inside a DCAS, as well as the representationnal and inferential capacities of a system based on these notions.
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Paul Lotin. Représentation de connaissances complexes : Un formalisme à base de rôles sémantiques. Interface homme-machine [cs.HC]. Université Blaise Pascal - Clermont-Ferrand II, 1995. Français. ⟨tel-00536060⟩

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