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Omission and addition of content is a typical issue in neural machine translation. We propose a method for detecting such phenomena with off-the-shelf translation models. Using contrastive conditioning, we compare the likelihood of a full…

计算与语言 · 计算机科学 2022-03-04 Jannis Vamvas , Rico Sennrich

Existing multilingual machine translation approaches mainly focus on English-centric directions, while the non-English directions still lag behind. In this work, we aim to build a many-to-many translation system with an emphasis on the…

计算与语言 · 计算机科学 2021-07-23 Xiao Pan , Mingxuan Wang , Liwei Wu , Lei Li

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…

计算与语言 · 计算机科学 2021-12-28 Mikel Artetxe , Gorka Labaka , Eneko Agirre

Self-supervised learning has recently shown great potential in vision tasks through contrastive learning, which aims to discriminate each image, or instance, in the dataset. However, such instance-level learning ignores the semantic…

计算机视觉与模式识别 · 计算机科学 2022-03-17 Tsai-Shien Chen , Wei-Chih Hung , Hung-Yu Tseng , Shao-Yi Chien , Ming-Hsuan Yang

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…

计算与语言 · 计算机科学 2019-12-02 Jiacheng Zhang , Huanbo Luan , Maosong Sun , FeiFei Zhai , Jingfang Xu , Yang Liu

This paper studies the practicality of the current state-of-the-art unsupervised methods in neural machine translation (NMT). In ten translation tasks with various data settings, we analyze the conditions under which the unsupervised…

计算与语言 · 计算机科学 2020-04-23 Yunsu Kim , Miguel Graça , Hermann Ney

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…

计算与语言 · 计算机科学 2023-12-21 Isidora Chara Tourni , Derry Wijaya

We present a framework for machine translation evaluation using neural networks in a pairwise setting, where the goal is to select the better translation from a pair of hypotheses, given the reference translation. In this framework,…

计算与语言 · 计算机科学 2017-10-06 Francisco Guzmán , Shafiq R. Joty , Lluís Màrquez , Preslav Nakov

Data mining and knowledge discovery are essential aspects of extracting valuable insights from vast datasets. Neural topic models (NTMs) have emerged as a valuable unsupervised tool in this field. However, the predominant objective in NTMs,…

人工智能 · 计算机科学 2024-12-24 Xin Gao , Yang Lin , Ruiqing Li , Yasha Wang , Xu Chu , Xinyu Ma , Hailong Yu

Pre-trained word embeddings are the primary method for transfer learning in several Natural Language Processing (NLP) tasks. Recent works have focused on using unsupervised techniques such as language modeling to obtain these embeddings. In…

计算与语言 · 计算机科学 2019-07-01 Mihir Kale , Aditya Siddhant , Sreyashi Nag , Radhika Parik , Matthias Grabmair , Anthony Tomasic

Existing curriculum learning approaches to Neural Machine Translation (NMT) require sampling sufficient amounts of "easy" samples from training data at the early training stage. This is not always achievable for low-resource languages where…

计算与语言 · 计算机科学 2021-03-23 Chen Liang , Haoming Jiang , Xiaodong Liu , Pengcheng He , Weizhu Chen , Jianfeng Gao , Tuo Zhao

Contrastive learning is commonly used as a method of self-supervised learning with the "anchor" and "positive" being two random augmentations of a given input image, and the "negative" is the set of all other images. However, the…

计算机视觉与模式识别 · 计算机科学 2022-08-16 Rishab Balasubramanian , Kunal Rathore

Although BERT and its variants have reshaped the NLP landscape, it still remains unclear how best to derive sentence embeddings from such pre-trained Transformers. In this work, we propose a contrastive learning method that utilizes…

计算与语言 · 计算机科学 2021-06-15 Taeuk Kim , Kang Min Yoo , Sang-goo Lee

Contrastive pre-training on distant supervision has shown remarkable effectiveness in improving supervised relation extraction tasks. However, the existing methods ignore the intrinsic noise of distant supervision during the pre-training…

计算与语言 · 计算机科学 2023-02-13 Zhen Wan , Fei Cheng , Qianying Liu , Zhuoyuan Mao , Haiyue Song , Sadao Kurohashi

The training data used in NMT is rarely controlled with respect to specific attributes, such as word casing or gender, which can cause errors in translations. We argue that predicting the target word and attributes simultaneously is an…

计算与语言 · 计算机科学 2021-09-27 Xing Niu , Georgiana Dinu , Prashant Mathur , Anna Currey

Neural Machine Translation has achieved state-of-the-art performance for several language pairs using a combination of parallel and synthetic data. Synthetic data is often generated by back-translating sentences randomly sampled from…

计算与语言 · 计算机科学 2018-09-24 Marzieh Fadaee , Christof Monz

Scarcity of parallel sentence pairs is a major challenge for training high quality neural machine translation (NMT) models in bilingually low-resource scenarios, as NMT is data-hungry. Multi-task learning is an elegant approach to inject…

计算与语言 · 计算机科学 2020-01-13 Poorya Zaremoodi , Gholamreza Haffari

Contrastive representation learning has gained much attention due to its superior performance in learning representations from both image and sequential data. However, the learned representations could potentially lead to performance…

计算与语言 · 计算机科学 2022-11-01 Jianfeng Chi , William Shand , Yaodong Yu , Kai-Wei Chang , Han Zhao , Yuan Tian

The next-token prediction (NTP) objective trains language models to predict a single token at each step, even though many continuations can express the same meaning. For example, in the sentence ``this sticker can be placed here'',…

计算与语言 · 计算机科学 2026-05-26 Christine Zhang , Dan Jurafsky , Chen Shani

Sign Language Translation (SLT) is a promising technology to bridge the communication gap between the deaf and the hearing people. Recently, researchers have adopted Neural Machine Translation (NMT) methods, which usually require…

计算与语言 · 计算机科学 2023-03-22 Biao Fu , Peigen Ye , Liang Zhang , Pei Yu , Cong Hu , Yidong Chen , Xiaodong Shi