Morphology Generation for Statistical Machine Translation using Deep Learning Techniques

10/07/2016

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by   Marta R. Costa-Jussà, et al.

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Universitat Politècnica de Catalunya

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Morphology in unbalanced languages remains a big challenge in the context of machine translation. In this paper, we propose to de-couple machine translation from morphology generation in order to better deal with the problem. We investigate the morphology simplification with a reasonable trade-off between expected gain and generation complexity. For the Chinese-Spanish task, optimum morphological simplification is in gender and number. For this purpose, we design a new classification architecture which, compared to other standard machine learning techniques, obtains the best results. This proposed neural-based architecture consists of several layers: an embedding, a convolutional followed by a recurrent neural network and, finally, ends with sigmoid and softmax layers. We obtain classification results over 98 in gender classification, over 93 translation improvement of 0.7 METEOR.