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We conduct an empirical study of neural machine translation (NMT) for truly low-resource languages, and propose a training curriculum fit for cases when both parallel training data and compute resource are lacking, reflecting the reality of…

Computation and Language · Computer Science 2021-11-30 Garry Kuwanto , Afra Feyza Akyürek , Isidora Chara Tourni , Siyang Li , Alexander Gregory Jones , Derry Wijaya

Unsupervised Neural Machine Translation (UNMT) focuses on improving NMT results under the assumption there is no human translated parallel data, yet little work has been done so far in highlighting its advantages compared to supervised…

Computation and Language · Computer Science 2023-12-21 Isidora Chara Tourni , Derry Wijaya

Recent work achieved remarkable results in training neural machine translation (NMT) systems in a fully unsupervised way, with new and dedicated architectures that rely on monolingual corpora only. In this work, we propose to define…

Computation and Language · Computer Science 2018-10-31 Benjamin Marie , Atsushi Fujita

We describe an unsupervised method to create pseudo-parallel corpora for machine translation (MT) from unaligned text. We use multilingual BERT to create source and target sentence embeddings for nearest-neighbor search and adapt the model…

Computation and Language · Computer Science 2020-10-16 Phillip Keung , Julian Salazar , Yichao Lu , Noah A. Smith

Unsupervised machine translation (MT) has recently achieved impressive results with monolingual corpora only. However, it is still challenging to associate source-target sentences in the latent space. As people speak different languages…

Computation and Language · Computer Science 2020-05-08 Po-Yao Huang , Junjie Hu , Xiaojun Chang , Alexander Hauptmann

The competitive performance of neural machine translation (NMT) critically relies on large amounts of training data. However, acquiring high-quality translation pairs requires expert knowledge and is costly. Therefore, how to best utilize a…

Computation and Language · Computer Science 2020-04-14 Mingjun Zhao , Haijiang Wu , Di Niu , Xiaoli Wang

While end-to-end neural machine translation (NMT) has made remarkable progress recently, NMT systems only rely on parallel corpora for parameter estimation. Since parallel corpora are usually limited in quantity, quality, and coverage,…

Computation and Language · Computer Science 2016-12-13 Yong Cheng , Wei Xu , Zhongjun He , Wei He , Hua Wu , Maosong Sun , Yang Liu

In spite of the recent success of neural machine translation (NMT) in standard benchmarks, the lack of large parallel corpora poses a major practical problem for many language pairs. There have been several proposals to alleviate this issue…

Computation and Language · Computer Science 2018-02-27 Mikel Artetxe , Gorka Labaka , Eneko Agirre , Kyunghyun Cho

Back-translation has proven to be an effective method to utilize monolingual data in neural machine translation (NMT), and iteratively conducting back-translation can further improve the model performance. Selecting which monolingual data…

Computation and Language · Computer Science 2020-10-09 Zi-Yi Dou , Antonios Anastasopoulos , Graham Neubig

Many language pairs are low resource, meaning the amount and/or quality of available parallel data is not sufficient to train a neural machine translation (NMT) model which can reach an acceptable standard of accuracy. Many works have…

Computation and Language · Computer Science 2021-11-23 Idris Abdulmumin , Bashir Shehu Galadanci , Abubakar Isa , Habeebah Adamu Kakudi , Ismaila Idris Sinan

Neural Machine Translation (MT) has radically changed the way systems are developed. A major difference with the previous generation (Phrase-Based MT) is the way monolingual target data, which often abounds, is used in these two paradigms.…

Computation and Language · Computer Science 2019-03-28 Franck Burlot , François Yvon

Current state-of-the-art NMT systems use large neural networks that are not only slow to train, but also often require many heuristics and optimization tricks, such as specialized learning rate schedules and large batch sizes. This is…

Computation and Language · Computer Science 2019-03-27 Emmanouil Antonios Platanios , Otilia Stretcu , Graham Neubig , Barnabas Poczos , Tom M. Mitchell

Neural Machine Translation (NMT) models achieve their best performance when large sets of parallel data are used for training. Consequently, techniques for augmenting the training set have become popular recently. One of these methods is…

Computation and Language · Computer Science 2019-09-10 Alberto Poncelas , Maja Popovic , Dimitar Shterionov , Gideon Maillette de Buy Wenniger , Andy Way

Back-translation (BT) of target monolingual corpora is a widely used data augmentation strategy for neural machine translation (NMT), especially for low-resource language pairs. To improve effectiveness of the available BT data, we…

Computation and Language · Computer Science 2021-09-10 Sahana Ramnath , Melvin Johnson , Abhirut Gupta , Aravindan Raghuveer

Unsupervised machine translation, which utilizes unpaired monolingual corpora as training data, has achieved comparable performance against supervised machine translation. However, it still suffers from data-scarce domains. To address this…

Computation and Language · Computer Science 2021-05-10 Cheonbok Park , Yunwon Tae , Taehee Kim , Soyoung Yang , Mohammad Azam Khan , Eunjeong Park , Jaegul Choo

Unsupervised neural machine translation(NMT) is associated with noise and errors in synthetic data when executing vanilla back-translations. Here, we explicitly exploits language model(LM) to drive construction of an unsupervised NMT…

Computation and Language · Computer Science 2019-11-12 Wei Zhang , Youyuan Lin , Ruoran Ren , Xiaodong Wang , Zhenshuang Liang , Zhen Huang

While modern machine translation has relied on large parallel corpora, a recent line of work has managed to train Neural Machine Translation (NMT) systems from monolingual corpora only (Artetxe et al., 2018c; Lample et al., 2018). Despite…

Computation and Language · Computer Science 2021-12-28 Mikel Artetxe , Gorka Labaka , Eneko Agirre

Exploiting a common language as an auxiliary for better translation has a long tradition in machine translation and lets supervised learning-based machine translation enjoy the enhancement delivered by the well-used pivot language in the…

Computation and Language · Computer Science 2020-10-12 Zuchao Li , Hai Zhao , Rui Wang , Masao Utiyama , Eiichiro Sumita

A neural machine translation (NMT) system is expensive to train, especially with high-resource settings. As the NMT architectures become deeper and wider, this issue gets worse and worse. In this paper, we aim to improve the efficiency of…

Computation and Language · Computer Science 2020-06-04 Xuebo Liu , Houtim Lai , Derek F. Wong , Lidia S. Chao

Back-translation (BT) is an effective semi-supervised learning framework in neural machine translation (NMT). A pre-trained NMT model translates monolingual sentences and makes synthetic bilingual sentence pairs for the training of the…

Computation and Language · Computer Science 2024-07-02 DongNyeong Heo , Heeyoul Choi