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Modèle descriptif des signes pour un traitement automatique des langues des signes

Abstract : Formal approaches to representing the signs of Sign Languages are traditionally parametric and this work shows that they are inappropriate for use in computer science. The main reasons are: the parameters used are neither all necessary nor do they form a sufficient set; parameters take on fixed values whereas signs are dynamic in nature and values change through time; parametric descriptions do not account for the signs' adaptability to context, hence are not reusable, which brings them to disregard the power in concision of sign languages. We propose a model called Zebedee, which describes signs in a sequence of timing units, each of which specifies a set of necessary and sufficient constraints to apply to a skeleton. The signing space is regarded as a Euclidean geometric space where any auxiliary geometric object may be built. Dependencies between elements of the descriptions or indeed on context are not only possible but also made relevant, and are based on articulatory, semantic and cognitive issues. We then give two complementary processes for evaluation: in computer science with the implementation of Zebedee in a signing avatar animation platform and an information display system for train stations, and in linguistics with a data base and new possibilities of queries that linguists may want to test. As prospects, we discuss different computational fields in which Zebedee should be useful, and several present linguistic problems for which it holds pieces of solutions.
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Contributor : Michael Filhol Connect in order to contact the contributor
Submitted on : Friday, July 18, 2008 - 3:23:37 PM
Last modification on : Sunday, June 26, 2022 - 11:48:24 AM
Long-term archiving on: : Monday, May 31, 2010 - 6:40:51 PM


  • HAL Id : tel-00300591, version 1


Michael Filhol. Modèle descriptif des signes pour un traitement automatique des langues des signes. Informatique [cs]. Université Paris Sud - Paris XI, 2008. Français. ⟨NNT : ⟩. ⟨tel-00300591⟩



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