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From conceptual spaces to predicates

Jean-Louis Dessalles 1, 2 
1 DIG - Data, Intelligence and Graphs
LTCI - Laboratoire Traitement et Communication de l'Information
Abstract : Why is a red face not really red? How do we decide that this book is a textbook or not? Conceptual spaces provide the medium on which these computations are performed, but an additional operation is needed: Contrast. By contrasting a reddish face with a prototypical face, one gets a prototypical ‘red’. By contrasting this book with a prototypical textbook, the lack of exercises may pop out. Dynamic contrasting is an essential operation for converting perceptions into predicates. The existence of dynamic contrasting may contribute to explaining why lexical meanings correspond to convex regions of conceptual spaces. But it also explains why predication is most of the time opportunistic, depending on context. While off-line conceptual similarity is a holistic operation, the contrast operation provides a context-dependent distance that creates ephemeral predi-cative judgments (‘this book is not a textbook’, ‘this author is a lin-guist’) that are essential for interfacing conceptual spaces with natural language and with reasoning.
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Submitted on : Friday, September 13, 2019 - 4:35:38 PM
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Jean-Louis Dessalles. From conceptual spaces to predicates. Applications of conceptual spaces, Springer, pp.17-31, 2015, ⟨10.1007/978-3-319-15021-5_2⟩. ⟨hal-02287107⟩



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