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Non-autoregressive models are promising on various text generation tasks. Previous work hardly considers to explicitly model the positions of generated words. However, position modeling is an essential problem in non-autoregressive text…

计算与语言 · 计算机科学 2019-12-02 Yu Bao , Hao Zhou , Jiangtao Feng , Mingxuan Wang , Shujian Huang , Jiajun Chen , Lei LI

Non-autoregressive translation models (NAT) have achieved impressive inference speedup. A potential issue of the existing NAT algorithms, however, is that the decoding is conducted in parallel, without directly considering previous context.…

计算与语言 · 计算机科学 2019-07-23 Bingzhen Wei , Mingxuan Wang , Hao Zhou , Junyang Lin , Jun Xie , Xu Sun

Non-autoregressive neural machine translation (NAT) offers substantial translation speed up compared to autoregressive neural machine translation (AT) at the cost of translation quality. Latent variable modeling has emerged as a promising…

计算与语言 · 计算机科学 2024-09-10 DongNyeong Heo , Heeyoul Choi

As a new neural machine translation approach, Non-Autoregressive machine Translation (NAT) has attracted attention recently due to its high efficiency in inference. However, the high efficiency has come at the cost of not capturing the…

计算与语言 · 计算机科学 2019-02-28 Yiren Wang , Fei Tian , Di He , Tao Qin , ChengXiang Zhai , Tie-Yan Liu

In recent years, Neural Machine Translation (NMT) has achieved notable results in various translation tasks. However, the word-by-word generation manner determined by the autoregressive mechanism leads to high translation latency of the NMT…

计算与语言 · 计算机科学 2021-09-02 Chenze Shao , Yang Feng , Jinchao Zhang , Fandong Meng , Jie Zhou

Non-autoregressive translation (NAT) models are typically trained with the cross-entropy loss, which forces the model outputs to be aligned verbatim with the target sentence and will highly penalize small shifts in word positions. Latent…

计算与语言 · 计算机科学 2022-10-11 Chenze Shao , Yang Feng

Although neural machine translation models reached high translation quality, the autoregressive nature makes inference difficult to parallelize and leads to high translation latency. Inspired by recent refinement-based approaches, we…

计算与语言 · 计算机科学 2019-11-22 Raphael Shu , Jason Lee , Hideki Nakayama , Kyunghyun Cho

In this work, we introduce a novel local autoregressive translation (LAT) mechanism into non-autoregressive translation (NAT) models so as to capture local dependencies among tar-get outputs. Specifically, for each target decoding position,…

计算与语言 · 计算机科学 2020-11-13 Xiang Kong , Zhisong Zhang , Eduard Hovy

The autoregressive (AR) models, such as attention-based encoder-decoder models and RNN-Transducer, have achieved great success in speech recognition. They predict the output sequence conditioned on the previous tokens and acoustic encoded…

音频与语音处理 · 电气工程与系统科学 2022-04-06 Zhengkun Tian , Jiangyan Yi , Jianhua Tao , Ye Bai , Shuai Zhang , Zhengqi Wen , Xuefei Liu

Standard decoders for neural machine translation autoregressively generate a single target token per time step, which slows inference especially for long outputs. While architectural advances such as the Transformer fully parallelize the…

计算与语言 · 计算机科学 2020-10-06 Nader Akoury , Kalpesh Krishna , Mohit Iyyer

Non-autoregressive Transformer is a promising text generation model. However, current non-autoregressive models still fall behind their autoregressive counterparts in translation quality. We attribute this accuracy gap to the lack of…

计算与语言 · 计算机科学 2021-03-23 Yu Bao , Shujian Huang , Tong Xiao , Dongqi Wang , Xinyu Dai , Jiajun Chen

Simultaneous machine translation (SimulMT) speeds up the translation process by starting to translate before the source sentence is completely available. It is difficult due to limited context and word order difference between languages.…

计算与语言 · 计算机科学 2022-05-05 Chih-Chiang Chang , Shun-Po Chuang , Hung-yi Lee

The non-autoregressive models have boosted the efficiency of neural machine translation through parallelized decoding at the cost of effectiveness when comparing with the autoregressive counterparts. In this paper, we claim that the…

计算与语言 · 计算机科学 2021-01-25 Ye Liu , Yao Wan , Jian-Guo Zhang , Wenting Zhao , Philip S. Yu

Non-autoregressive neural machine translation (NART) models suffer from the multi-modality problem which causes translation inconsistency such as token repetition. Most recent approaches have attempted to solve this problem by implicitly…

计算与语言 · 计算机科学 2021-09-15 Jongyoon Song , Sungwon Kim , Sungroh Yoon

Non-autoregressive approaches aim to improve the inference speed of translation models, particularly those that generate output in a one-pass forward manner. However, these approaches often suffer from a significant drop in translation…

计算与语言 · 计算机科学 2024-10-15 Shen-sian Syu , Juncheng Xie , Hung-yi Lee

Direct speech-to-speech translation (S2ST) has achieved impressive translation quality, but it often faces the challenge of slow decoding due to the considerable length of speech sequences. Recently, some research has turned to…

计算与语言 · 计算机科学 2024-06-12 Qingkai Fang , Zhengrui Ma , Yan Zhou , Min Zhang , Yang Feng

Non-autoregressive Transformer(NAT) significantly accelerates the inference of neural machine translation. However, conventional NAT models suffer from limited expression power and performance degradation compared to autoregressive (AT)…

计算与语言 · 计算机科学 2023-11-15 Shangtong Gui , Chenze Shao , Zhengrui Ma , Xishan Zhang , Yunji Chen , Yang Feng

Non-autoregressive machine translation (NAT) systems predict a sequence of output tokens in parallel, achieving substantial improvements in generation speed compared to autoregressive models. Existing NAT models usually rely on the…

计算与语言 · 计算机科学 2021-02-24 Chunting Zhou , Graham Neubig , Jiatao Gu

Non-autoregressive translation (NAT) models generate multiple tokens in one forward pass and is highly efficient at inference stage compared with autoregressive translation (AT) methods. However, NAT models often suffer from the…

计算与语言 · 计算机科学 2020-02-11 Xiaoya Li , Yuxian Meng , Arianna Yuan , Fei Wu , Jiwei Li

End-to-end (E2E) models have gained attention in the research field of automatic speech recognition (ASR). Many E2E models proposed so far assume left-to-right autoregressive generation of an output token sequence except for connectionist…

音频与语音处理 · 电气工程与系统科学 2020-11-17 Yuya Fujita , Shinji Watanabe , Motoi Omachi , Xuankai Chan