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Simultaneous machine translation (SiMT) starts its translation before reading the whole source sentence and employs either fixed or adaptive policy to generate the target sentence. Compared to the fixed policy, the adaptive policy achieves…

Computation and Language · Computer Science 2022-10-24 Shoutao Guo , Shaolei Zhang , Yang Feng

Attention mechanism has enhanced state-of-the-art Neural Machine Translation (NMT) by jointly learning to align and translate. It tends to ignore past alignment information, however, which often leads to over-translation and…

Computation and Language · Computer Science 2016-08-09 Zhaopeng Tu , Zhengdong Lu , Yang Liu , Xiaohua Liu , Hang Li

In Transformer-based neural machine translation (NMT), the positional encoding mechanism helps the self-attention networks to learn the source representation with order dependency, which makes the Transformer-based NMT achieve…

Computation and Language · Computer Science 2020-04-09 Kehai Chen , Rui Wang , Masao Utiyama , Eiichiro Sumita

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

In neural machine translation (NMT), generation of a target word depends on both source and target contexts. We find that source contexts have a direct impact on the adequacy of a translation while target contexts affect the fluency.…

Computation and Language · Computer Science 2017-03-09 Zhaopeng Tu , Yang Liu , Zhengdong Lu , Xiaohua Liu , Hang Li

Neural Machine Translation (NMT) generates target words sequentially in the way of predicting the next word conditioned on the context words. At training time, it predicts with the ground truth words as context while at inference it has to…

Computation and Language · Computer Science 2019-06-18 Wen Zhang , Yang Feng , Fandong Meng , Di You , Qun Liu

Unsupervised neural machine translation (UNMT) has recently attracted great interest in the machine translation community. The main advantage of the UNMT lies in its easy collection of required large training text sentences while with only…

Computation and Language · Computer Science 2020-12-04 Haipeng Sun , Rui Wang , Kehai Chen , Xugang Lu , Masao Utiyama , Eiichiro Sumita , Tiejun Zhao

Most of the Neural Machine Translation (NMT) models are based on the sequence-to-sequence (Seq2Seq) model with an encoder-decoder framework equipped with the attention mechanism. However, the conventional attention mechanism treats the…

Computation and Language · Computer Science 2018-08-28 Junyang Lin , Xu Sun , Xuancheng Ren , Muyu Li , Qi Su

The Neural Machine Translation (NMT) model is essentially a joint language model conditioned on both the source sentence and partial translation. Therefore, the NMT model naturally involves the mechanism of the Language Model (LM) that…

Computation and Language · Computer Science 2021-06-01 Mengqi Miao , Fandong Meng , Yijin Liu , Xiao-Hua Zhou , Jie Zhou

In the present article, we identified the qualitative differences between Statistical Machine Translation (SMT) and Neural Machine Translation (NMT) outputs. We have tried to answer two important questions: 1. Does NMT perform equivalently…

Computation and Language · Computer Science 2018-12-13 Sainik Kumar Mahata , Soumil Mandal , Dipankar Das , Sivaji Bandyopadhyay

Using pre-trained word embeddings as input layer is a common practice in many natural language processing (NLP) tasks, but it is largely neglected for neural machine translation (NMT). In this paper, we conducted a systematic analysis on…

Computation and Language · Computer Science 2018-06-15 Shuoyang Ding , Kevin Duh

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

Neural machine translation (MT) models achieve strong results across a variety of settings, but it is widely believed that they are highly sensitive to "noisy" inputs, such as spelling errors, abbreviations, and other formatting issues. In…

Computation and Language · Computer Science 2025-10-06 Ben Peters , André F. T. Martins

Neural machine translation (NMT) systems aim to map text from one language into another. While there are a wide variety of applications of NMT, one of the most important is translation of natural language. A distinguishing factor of natural…

Computation and Language · Computer Science 2022-01-04 Vivek Subramanian , Dhanasekar Sundararaman

Unsupervised cross-lingual pretraining has achieved strong results in neural machine translation (NMT), by drastically reducing the need for large parallel data. Most approaches adapt masked-language modeling (MLM) to sequence-to-sequence…

Computation and Language · Computer Science 2021-06-11 Christos Baziotis , Ivan Titov , Alexandra Birch , Barry Haddow

Multilingual neural machine translation (NMT) has recently been investigated from different aspects (e.g., pivot translation, zero-shot translation, fine-tuning, or training from scratch) and in different settings (e.g., rich resource and…

Computation and Language · Computer Science 2019-12-30 Xu Tan , Yichong Leng , Jiale Chen , Yi Ren , Tao Qin , Tie-Yan Liu

It has been shown that the performance of neural machine translation (NMT) drops starkly in low-resource conditions, underperforming phrase-based statistical machine translation (PBSMT) and requiring large amounts of auxiliary data to…

Computation and Language · Computer Science 2019-05-29 Rico Sennrich , Biao Zhang

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

As a sequence-to-sequence generation task, neural machine translation (NMT) naturally contains intrinsic uncertainty, where a single sentence in one language has multiple valid counterparts in the other. However, the dominant methods for…

Computation and Language · Computer Science 2020-10-12 Xiangpeng Wei , Heng Yu , Yue Hu , Rongxiang Weng , Luxi Xing , Weihua Luo

Neural Machine Translation (NMT) models have shown remarkable performance but remain largely opaque in their decision making processes. The interpretability of these models, especially their internal attention mechanisms, is critical for…

Artificial Intelligence · Computer Science 2024-12-30 Anurag Mishra