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In this paper, we propose an effective way for biasing the attention mechanism of a sequence-to-sequence neural machine translation (NMT) model towards the well-studied statistical word alignment models. We show that our novel guided…

计算与语言 · 计算机科学 2016-07-07 Wenhu Chen , Evgeny Matusov , Shahram Khadivi , Jan-Thorsten Peter

Machine learning classifiers are known to be vulnerable to inputs maliciously constructed by adversaries to force misclassification. Such adversarial examples have been extensively studied in the context of computer vision applications. In…

机器学习 · 计算机科学 2017-02-09 Sandy Huang , Nicolas Papernot , Ian Goodfellow , Yan Duan , Pieter Abbeel

Through the development of neural machine translation, the quality of machine translation systems has been improved significantly. By exploiting advancements in deep learning, systems are now able to better approximate the complex mapping…

计算与语言 · 计算机科学 2018-08-03 Jan Niehues , Ngoc-Quan Pham , Thanh-Le Ha , Matthias Sperber , Alex Waibel

Building an effective adversarial attacker and elaborating on countermeasures for adversarial attacks for natural language processing (NLP) have attracted a lot of research in recent years. However, most of the existing approaches focus on…

计算与语言 · 计算机科学 2020-10-20 Wenjuan Han , Liwen Zhang , Yong Jiang , Kewei Tu

Almost all adversarial attacks are formulated to add an imperceptible perturbation to an image in order to fool a model. Here, we consider the opposite which is adversarial examples that can fool a human but not a model. A large enough and…

计算机视觉与模式识别 · 计算机科学 2022-08-26 Ali Borji

Deep neural networks have been proven to be vulnerable to adversarial examples and various methods have been proposed to defend against adversarial attacks for natural language processing tasks. However, previous defense methods have…

机器学习 · 计算机科学 2024-03-01 Fangyuan Zhang , Huichi Zhou , Shuangjiao Li , Hongtao Wang

Deep learning based systems are susceptible to adversarial attacks, where a small, imperceptible change at the input alters the model prediction. However, to date the majority of the approaches to detect these attacks have been designed for…

计算与语言 · 计算机科学 2022-09-27 Vyas Raina , Mark Gales

This paper is devoted to the prediction of solutions to a stochastic discrete optimization problem. Through an application, we illustrate how we can use a state-of-the-art neural machine translation (NMT) algorithm to predict the solutions…

机器学习 · 计算机科学 2019-10-21 Emma Frejinger , Eric Larsen

Unsupervised neural machine translation (NMT) is a recently proposed approach for machine translation which aims to train the model without using any labeled data. The models proposed for unsupervised NMT often use only one shared encoder…

计算与语言 · 计算机科学 2018-04-25 Zhen Yang , Wei Chen , Feng Wang , Bo Xu

Adversarial training (AT) as a regularization method has proved its effectiveness on various tasks. Though there are successful applications of AT on some NLP tasks, the distinguishing characteristics of NLP tasks have not been exploited.…

计算与语言 · 计算机科学 2021-11-29 Ziqing Yang , Yiming Cui , Chenglei Si , Wanxiang Che , Ting Liu , Shijin Wang , Guoping Hu

As speech translation (ST) systems become increasingly prevalent, understanding their vulnerabilities is crucial for ensuring robust and reliable communication. However, limited work has explored this issue in depth. This paper explores…

声音 · 计算机科学 2025-03-06 Chang Liu , Haolin Wu , Xi Yang , Kui Zhang , Cong Wu , Weiming Zhang , Nenghai Yu , Tianwei Zhang , Qing Guo , Jie Zhang

As neural machine translation (NMT) is not easily amenable to explicit correction of errors, incorporating pre-specified translations into NMT is widely regarded as a non-trivial challenge. In this paper, we propose and explore three…

计算与语言 · 计算机科学 2019-12-03 Tao Wang , Shaohui Kuang , Deyi Xiong , António Branco

Adversarial attacks are a type of attack on machine learning models where an attacker deliberately modifies the inputs to cause the model to make incorrect predictions. Adversarial attacks can have serious consequences, particularly in…

Within the field of Statistical Machine Translation (SMT), the neural approach (NMT) has recently emerged as the first technology able to challenge the long-standing dominance of phrase-based approaches (PBMT). In particular, at the IWSLT…

计算与语言 · 计算机科学 2016-10-11 Luisa Bentivogli , Arianna Bisazza , Mauro Cettolo , Marcello Federico

Neural Machine Translation (NMT) is the task of translating a text from one language to another with the use of a trained neural network. Several existing works aim at incorporating external information into NMT models to improve or control…

计算与语言 · 计算机科学 2024-04-30 Charles Brazier , Jean-Luc Rouas

One of the difficulties of neural machine translation (NMT) is the recall and appropriate translation of low-frequency words or phrases. In this paper, we propose a simple, fast, and effective method for recalling previously seen…

计算与语言 · 计算机科学 2018-04-10 Jingyi Zhang , Masao Utiyama , Eiichro Sumita , Graham Neubig , Satoshi Nakamura

In recent years, several studies on neural machine translation (NMT) have attempted to use document-level context by using a multi-encoder and two attention mechanisms to read the current and previous sentences to incorporate the context of…

计算与语言 · 计算机科学 2019-09-04 Hayahide Yamagishi , Mamoru Komachi

Deep neural networks are vulnerable to adversarial examples, which can mislead classifiers by adding imperceptible perturbations. An intriguing property of adversarial examples is their good transferability, making black-box attacks…

计算机视觉与模式识别 · 计算机科学 2019-04-08 Yinpeng Dong , Tianyu Pang , Hang Su , Jun Zhu

Despite the growing variety of languages supported by existing multilingual neural machine translation (MNMT) models, most of the world's languages are still being left behind. We aim to extend large-scale MNMT models to incorporate a new…

计算与语言 · 计算机科学 2025-12-02 Wen Lai , Viktor Hangya , Yingli Shen , Alexander Fraser

In this paper, we introduce a hybrid search for attention-based neural machine translation (NMT). A target phrase learned with statistical MT models extends a hypothesis in the NMT beam search when the attention of the NMT model focuses on…

计算与语言 · 计算机科学 2017-08-11 Leonard Dahlmann , Evgeny Matusov , Pavel Petrushkov , Shahram Khadivi