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Recently, the development of neural machine translation (NMT) has significantly improved the translation quality of automatic machine translation. While most sentences are more accurate and fluent than translations by statistical machine…

Computation and Language · Computer Science 2016-10-18 Jan Niehues , Eunah Cho , Thanh-Le Ha , Alex Waibel

While data augmentation is an important trick to boost the accuracy of deep learning methods in computer vision tasks, its study in natural language tasks is still very limited. In this paper, we present a novel data augmentation method for…

Computation and Language · Computer Science 2019-05-28 Jinhua Zhu , Fei Gao , Lijun Wu , Yingce Xia , Tao Qin , Wengang Zhou , Xueqi Cheng , Tie-Yan Liu

Neural language models learn word representations, or embeddings, that capture rich linguistic and conceptual information. Here we investigate the embeddings learned by neural machine translation models, a recently-developed class of neural…

Computation and Language · Computer Science 2015-04-06 Felix Hill , Kyunghyun Cho , Sebastien Jean , Coline Devin , Yoshua Bengio

Statistical language models are central to many applications that use semantics. Recurrent Neural Networks (RNN) are known to produce state of the art results for language modelling, outperforming their traditional n-gram counterparts in…

Computation and Language · Computer Science 2016-02-05 Anantharaman Palacode Narayana Iyer

We present Neural Machine Translation (NMT) training using document-level metrics with batch-level documents. Previous sequence-objective approaches to NMT training focus exclusively on sentence-level metrics like sentence BLEU which do not…

Computation and Language · Computer Science 2020-05-05 Danielle Saunders , Felix Stahlberg , Bill Byrne

Neural Machine Translation (NMT) leverages one or more trained neural networks for the translation of phrases. Sutskever introduced a sequence to sequence based encoder-decoder model which became the standard for NMT based systems.…

Computation and Language · Computer Science 2020-06-11 Satish Mylapore , Ryan Quincy Paul , Joshua Yi , Robert D. Slater

Neural Machine Translation (NMT) has become the new state-of-the-art in several language pairs. However, it remains a challenging problem how to integrate NMT with a bilingual dictionary which mainly contains words rarely or never seen in…

Computation and Language · Computer Science 2016-10-25 Jiajun Zhang , Chengqing Zong

Document-level machine translation incorporates inter-sentential dependencies into the translation of a source sentence. In this paper, we propose a new framework to model cross-sentence dependencies by training neural machine translation…

Computation and Language · Computer Science 2020-03-31 Pei Zhang , Xu Zhang , Wei Chen , Jian Yu , Yanfeng Wang , Deyi Xiong

The quality of a Neural Machine Translation system depends substantially on the availability of sizable parallel corpora. For low-resource language pairs this is not the case, resulting in poor translation quality. Inspired by work in…

Computation and Language · Computer Science 2018-02-14 Marzieh Fadaee , Arianna Bisazza , Christof Monz

Machine translation is a popular test bed for research in neural sequence-to-sequence models but despite much recent research, there is still a lack of understanding of these models. Practitioners report performance degradation with large…

Computation and Language · Computer Science 2018-08-14 Myle Ott , Michael Auli , David Grangier , Marc'Aurelio Ranzato

Training efficiency is one of the main problems for Neural Machine Translation (NMT). Deep networks need for very large data as well as many training iterations to achieve state-of-the-art performance. This results in very high computation…

Computation and Language · Computer Science 2017-10-04 Dakun Zhang , Jungi Kim , Josep Crego , Jean Senellart

We propose a novel method for translation selection in statistical machine translation, in which a convolutional neural network is employed to judge the similarity between a phrase pair in two languages. The specifically designed…

Computation and Language · Computer Science 2015-06-25 Zhaopeng Tu , Baotian Hu , Zhengdong Lu , Hang Li

Previous work on neural noisy channel modeling relied on latent variable models that incrementally process the source and target sentence. This makes decoding decisions based on partial source prefixes even though the full source is…

Computation and Language · Computer Science 2019-08-19 Kyra Yee , Nathan Ng , Yann N. Dauphin , Michael Auli

Neural machine translation (NMT) offers a novel alternative formulation of translation that is potentially simpler than statistical approaches. However to reach competitive performance, NMT models need to be exceedingly large. In this paper…

Computation and Language · Computer Science 2016-09-23 Yoon Kim , Alexander M. Rush

In neural machine translation (NMT), the computational cost at the output layer increases with the size of the target-side vocabulary. Using a limited-size vocabulary instead may cause a significant decrease in translation quality. This…

Computation and Language · Computer Science 2018-07-31 Katsuki Chousa , Katsuhito Sudoh , Satoshi Nakamura

An effective method to generate a large number of parallel sentences for training improved neural machine translation (NMT) systems is the use of back-translations of the target-side monolingual data. Recently, iterative back-translation…

Computation and Language · Computer Science 2020-12-11 Idris Abdulmumin , Bashir Shehu Galadanci , Abubakar Isa

The choice of token vocabulary affects the performance of machine translation. This paper aims to figure out what is a good vocabulary and whether one can find the optimal vocabulary without trial training. To answer these questions, we…

Computation and Language · Computer Science 2021-11-29 Jingjing Xu , Hao Zhou , Chun Gan , Zaixiang Zheng , Lei Li

We explore ways of incorporating bilingual dictionaries to enable semi-supervised neural machine translation. Conventional back-translation methods have shown success in leveraging target side monolingual data. However, since the quality of…

Computation and Language · Computer Science 2020-04-07 Sreyashi Nag , Mihir Kale , Varun Lakshminarasimhan , Swapnil Singhavi

Neural machine translation (NMT) models typically operate with a fixed vocabulary, but translation is an open-vocabulary problem. Previous work addresses the translation of out-of-vocabulary words by backing off to a dictionary. In this…

Computation and Language · Computer Science 2016-06-13 Rico Sennrich , Barry Haddow , Alexandra Birch

Despite the progress made in sentence-level NMT, current systems still fall short at achieving fluent, good quality translation for a full document. Recent works in context-aware NMT consider only a few previous sentences as context and may…

Computation and Language · Computer Science 2019-05-27 Sameen Maruf , André F. T. Martins , Gholamreza Haffari