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Reordering table reconstruction model for Chinese-Uyghur machine translation
PAN Yirong, LI Xiao, YANG Yating, MI Chenggang, DONG Rui
Journal of Computer Applications    2018, 38 (5): 1283-1288.   DOI: 10.11772/j.issn.1001-9081.2017102455
Abstract626)      PDF (934KB)(517)       Save
Focused on the issue that lexicalized reordering models are faced with context independence and sparsity problems in machine translation, a reordering table reconstruction model based on semantic content for reordering orientation and probability prediction was proposed. Firstly, continuous distributed representation approach was employed to acquire the feature vectors of reordering rules. Secondly, Recurrent Neural Networks (RNN) were utilized to predict the reordering orientation and probability of each reordering rule that represented with dense vectors. Finally, the original reordering table was filtered and reconstructed with more reasonable reordering probability distribution for the purpose of improving the reordering information accuracy in reordering model as well as reducing the size of the reordering table to speed up subsequent decoding process. The experimental results show that the reordering table reconstruction model can provide BLEU point gains (+0.39) for Chinese to Uyghur machine translation task.
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