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Attention mechanisms have become ubiquitous in NLP. Recent architectures, notably the Transformer, learn powerful context-aware word representations through layered, multi-headed attention. The multiple heads learn diverse types of word…

Computation and Language · Computer Science 2019-09-09 Gonçalo M. Correia , Vlad Niculae , André F. T. Martins

Neural machine translation (NMT) systems have been shown to give undesirable translation when a small change is made in the source sentence. In this paper, we study the behaviour of NMT systems when multiple changes are made to the source…

Machine Learning · Computer Science 2020-03-02 Akshay Chaturvedi , Abijith KP , Utpal Garain

Attention-based Neural Machine Translation (NMT) models suffer from attention deficiency issues as has been observed in recent research. We propose a novel mechanism to address some of these limitations and improve the NMT attention.…

Computation and Language · Computer Science 2016-08-10 Baskaran Sankaran , Haitao Mi , Yaser Al-Onaizan , Abe Ittycheriah

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

Although attention-based Neural Machine Translation (NMT) has achieved remarkable progress in recent years, it still suffers from issues of repeating and dropping translations. To alleviate these issues, we propose a novel key-value…

Computation and Language · Computer Science 2018-07-02 Fandong Meng , Zhaopeng Tu , Yong Cheng , Haiyang Wu , Junjie Zhai , Yuekui Yang , Di Wang

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

Self-attention based Transformer has demonstrated the state-of-the-art performances in a number of natural language processing tasks. Self-attention is able to model long-term dependencies, but it may suffer from the extraction of…

Computation and Language · Computer Science 2019-12-30 Guangxiang Zhao , Junyang Lin , Zhiyuan Zhang , Xuancheng Ren , Qi Su , Xu Sun

While neural machine translation (NMT) has achieved state-of-the-art translation performance, it is unable to capture the alignment between the input and output during the translation process. The lack of alignment in NMT models leads to…

Computation and Language · Computer Science 2019-12-02 Jiacheng Zhang , Huanbo Luan , Maosong Sun , FeiFei Zhai , Jingfang Xu , Yang Liu

Simultaneous neural machine translation(SNMT) models start emitting the target sequence before they have processed the source sequence. The recent adaptive policies for SNMT use monotonic attention to perform read/write decisions based on…

Computation and Language · Computer Science 2021-09-08 Mohd Abbas Zaidi , Sathish Indurthi , Beomseok Lee , Nikhil Kumar Lakumarapu , Sangha Kim

Despite the impressive quality improvements yielded by neural machine translation (NMT) systems, controlling their translation output to adhere to user-provided terminology constraints remains an open problem. We describe our approach to…

Computation and Language · Computer Science 2018-05-11 Eva Hasler , Adrià De Gispert , Gonzalo Iglesias , Bill Byrne

Attention mechanism, including global attention and local attention, plays a key role in neural machine translation (NMT). Global attention attends to all source words for word prediction. In comparison, local attention selectively looks at…

Computation and Language · Computer Science 2019-09-20 Kehai Chen , Rui Wang , Masao Utiyama , Eiichiro Sumita , Tiejun Zhao

Cross-attention is an important component of neural machine translation (NMT), which is always realized by dot-product attention in previous methods. However, dot-product attention only considers the pair-wise correlation between words,…

Computation and Language · Computer Science 2021-09-15 Shaolei Zhang , Yang Feng

The attention mechanism is an important part of the neural machine translation (NMT) where it was reported to produce richer source representation compared to fixed-length encoding sequence-to-sequence models. Recently, the effectiveness of…

Computation and Language · Computer Science 2016-09-14 Ozan Caglayan , Loïc Barrault , Fethi Bougares

Neural Machine Translation (NMT) is a new approach to machine translation that has made great progress in recent years. However, recent studies show that NMT generally produces fluent but inadequate translations (Tu et al. 2016b; Tu et al.…

Computation and Language · Computer Science 2017-01-02 Xing Wang , Zhengdong Lu , Zhaopeng Tu , Hang Li , Deyi Xiong , Min Zhang

The attention mechanisim is appealing for neural machine translation, since it is able to dynam- ically encode a source sentence by generating a alignment between a target word and source words. Unfortunately, it has been proved to be worse…

Computation and Language · Computer Science 2016-09-15 Lemao Liu , Masao Utiyama , Andrew Finch , Eiichiro Sumita

Multilingual machine translation addresses the task of translating between multiple source and target languages. We propose task-specific attention models, a simple but effective technique for improving the quality of sequence-to-sequence…

Computation and Language · Computer Science 2018-06-11 Graeme Blackwood , Miguel Ballesteros , Todd Ward

Accurate terminology translation is crucial for ensuring the practicality and reliability of neural machine translation (NMT) systems. To address this, lexically constrained NMT explores various methods to ensure pre-specified words and…

Computation and Language · Computer Science 2021-08-13 Gyubok Lee , Seongjun Yang , Edward Choi

Modern neural networks are often augmented with an attention mechanism, which tells the network where to focus within the input. We propose in this paper a new framework for sparse and structured attention, building upon a smoothed max…

Machine Learning · Statistics 2019-02-26 Vlad Niculae , Mathieu Blondel

Sparse Attention is a technique that approximates standard attention computation with sub-quadratic complexity. This is achieved by selectively ignoring smaller entries in the attention matrix during the softmax function computation.…

Machine Learning · Computer Science 2025-02-13 Yichuan Deng , Zhao Song , Jing Xiong , Chiwun Yang

Attention models have become a crucial component in neural machine translation (NMT). They are often implicitly or explicitly used to justify the model's decision in generating a specific token but it has not yet been rigorously established…

Computation and Language · Computer Science 2019-10-02 Pooya Moradi , Nishant Kambhatla , Anoop Sarkar
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