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Title:
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Robust Estimation of Feature Weights in Statistical Machine Translation
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Author:
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España Bonet, Cristina; Màrquez Villodre, Lluís
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Other authors:
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Universitat Politècnica de Catalunya. Departament de Llenguatges i Sistemes Informàtics; Universitat Politècnica de Catalunya. GPLN - Grup de Processament del Llenguatge Natural |
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Abstract:
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Weights of the various components in a
standard Statistical Machine Translation
model are usually estimated via Minimum
Error Rate Training. With this, one finds
their optimum value on a development set with the expectation that these optimal
weights generalise well to other test sets. However, this is not always the case when domains differ. This work uses a perceptron algorithm to learn more robust weights to be used on out-of-domain corpora without the need for specialised data. For an Arabic-to-English translation system, the generalisation of weights represents an improvement of more than 2 points of BLEU with respect to the MERT baseline using the same information. |
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Abstract:
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Peer Reviewed |
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Subject(s):
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-Àrees temàtiques de la UPC::Informàtica::Intel·ligència artificial::Llenguatge natural
-Statistical Machine Translation System (model)
-Machine translation
-Arabic language -- Translating into English
-Traducció automàtica -- Mètodes estadístics
-Traductors (Programes d'ordinador) |
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Rights:
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Document type:
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Article - Published version
Conference Object |
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