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Theses

De l'utilisation de mesures de confiance en traduction automatique : évaluation, post-édition et application à la traduction de la parole

Sylvain Raybaud 1
1 PAROLE - Analysis, perception and recognition of speech
Inria Nancy - Grand Est, LORIA - NLPKD - Department of Natural Language Processing & Knowledge Discovery
Abstract : In this thesis I shall deal with the issues of confidence estimation for machine translation and statistical machine translation of large vocabulary spontaneous speech translation. I shall first formalize the problem of confidence estimation. I present experiments under the paradigm of multivariate classification and regression. I review the performances yielded by different techniques, present the results obtained during the WMT2012 internation evaluation campaign and give the details of an application to post edition of automatically translated documents. I then deal with the issue of speech translation. After going into the details of what makes it a very specific and particularly challenging problem, I present original methods to partially solve it, by using phonetic confusion networks, confidence estimation techniques and speech segmentation. I show that the prototype I developped yields performances comparable to state-of-the-art of more standard design.
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https://hal.inria.fr/tel-01749642
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  • HAL Id : tel-01749642, version 2

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Sylvain Raybaud. De l'utilisation de mesures de confiance en traduction automatique : évaluation, post-édition et application à la traduction de la parole. Informatique et langage [cs.CL]. Université de Lorraine, 2012. Français. ⟨NNT : 2012LORR0260⟩. ⟨tel-01749642v2⟩

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