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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

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

Many works proposed methods to improve the performance of Neural Machine Translation (NMT) models in a domain/multi-domain adaptation scenario. However, an understanding of how NMT baselines represent text domain information internally is…

Computation and Language · Computer Science 2021-09-17 Maksym Del , Elizaveta Korotkova , Mark Fishel

Transformer has been widely adopted in Neural Machine Translation (NMT) because of its large capacity and parallel training of sequence generation. However, the deployment of Transformer is challenging because different scenarios require…

Computation and Language · Computer Science 2021-06-21 Peng Gao , Shijie Geng , Yu Qiao , Xiaogang Wang , Jifeng Dai , Hongsheng Li

Prior work has proved that Translation memory (TM) can boost the performance of Neural Machine Translation (NMT). In contrast to existing work that uses bilingual corpus as TM and employs source-side similarity search for memory retrieval,…

Computation and Language · Computer Science 2021-06-03 Deng Cai , Yan Wang , Huayang Li , Wai Lam , Lemao Liu

We propose task-adaptive tokenization as a way to adapt the generation pipeline to the specifics of a downstream task and enhance long-form generation in mental health. Inspired by insights from cognitive science, our task-adaptive…

Computation and Language · Computer Science 2023-11-14 Siyang Liu , Naihao Deng , Sahand Sabour , Yilin Jia , Minlie Huang , Rada Mihalcea

Although Neural Machine Translation (NMT) has achieved remarkable progress in the past several years, most NMT systems still suffer from a fundamental shortcoming as in other sequence generation tasks: errors made early in generation…

Computation and Language · Computer Science 2018-11-14 Zhirui Zhang , Shuangzhi Wu , Shujie Liu , Mu Li , Ming Zhou , Tong Xu

Supervised learning in Neural Machine Translation (NMT) typically follows a teacher forcing paradigm where reference tokens constitute the conditioning context in the model's prediction, instead of its own previous predictions. In order to…

Computation and Language · Computer Science 2023-07-18 Nathaniel Berger , Miriam Exel , Matthias Huck , Stefan Riezler

Many NLP models operate over sequences of subword tokens produced by hand-crafted tokenization rules and heuristic subword induction algorithms. A simple universal alternative is to represent every computerized text as a sequence of bytes…

Computation and Language · Computer Science 2021-04-13 Uri Shaham , Omer Levy

Dropout is a powerful and widely used technique to regularize the training of deep neural networks. In this paper, we introduce a simple regularization strategy upon dropout in model training, namely R-Drop, which forces the output…

Machine Learning · Computer Science 2021-11-01 Xiaobo Liang , Lijun Wu , Juntao Li , Yue Wang , Qi Meng , Tao Qin , Wei Chen , Min Zhang , Tie-Yan Liu

Neural Machine Translation (NMT) systems are used in various applications. However, it has been shown that they are vulnerable to very small perturbations of their inputs, known as adversarial attacks. In this paper, we propose a new…

Computation and Language · Computer Science 2023-03-03 Sahar Sadrizadeh , AmirHossein Dabiri Aghdam , Ljiljana Dolamic , Pascal Frossard

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

A sentence can be translated into more than one correct sentences. However, most of the existing neural machine translation models only use one of the correct translations as the targets, and the other correct sentences are punished as the…

Computation and Language · Computer Science 2018-05-15 Shuming Ma , Xu Sun , Yizhong Wang , Junyang Lin

Non-Autoregressive Neural Machine Translation (NAT) has achieved significant inference speedup by generating all tokens simultaneously. Despite its high efficiency, NAT usually suffers from two kinds of translation errors: over-translation…

Computation and Language · Computer Science 2021-04-27 Yong Shan , Yang Feng , Chenze Shao

The recent success of neural machine translation models relies on the availability of high quality, in-domain data. Domain adaptation is required when domain-specific data is scarce or nonexistent. Previous unsupervised domain adaptation…

Computation and Language · Computer Science 2019-08-29 Zi-Yi Dou , Junjie Hu , Antonios Anastasopoulos , Graham Neubig

In recent years, Neural Machine Translation (NMT) has been shown to be more effective than phrase-based statistical methods, thus quickly becoming the state of the art in machine translation (MT). However, NMT systems are limited in…

Computation and Language · Computer Science 2019-09-17 Surafel M. Lakew , Marcello Federico , Matteo Negri , Marco Turchi

Training data for NLP tasks often exhibits gender bias in that fewer sentences refer to women than to men. In Neural Machine Translation (NMT) gender bias has been shown to reduce translation quality, particularly when the target language…

Computation and Language · Computer Science 2020-07-10 Danielle Saunders , Bill Byrne

Standard neural machine translation (NMT) is on the assumption that the document-level context is independent. Most existing document-level NMT approaches are satisfied with a smattering sense of global document-level information, while…

Computation and Language · Computer Science 2021-08-25 Shu Jiang , Rui Wang , Zuchao Li , Masao Utiyama , Kehai Chen , Eiichiro Sumita , Hai Zhao , Bao-liang Lu

We present a new approach for neural machine translation (NMT) using the morphological and grammatical decomposition of the words (factors) in the output side of the neural network. This architecture addresses two main problems occurring in…

Computation and Language · Computer Science 2017-12-07 Mercedes García-Martínez , Loïc Barrault , Fethi Bougares

Neural machine translation (NMT) takes deterministic sequences for source representations. However, either word-level or subword-level segmentations have multiple choices to split a source sequence with different word segmentors or…

Computation and Language · Computer Science 2019-06-05 Fengshun Xiao , Jiangtong Li , Hai Zhao , Rui Wang , Kehai Chen