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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

Deep neural networks (DNNs) have achieved tremendous success in a variety of applications across many disciplines. Yet, their superior performance comes with the expensive cost of requiring correctly annotated large-scale datasets.…

机器学习 · 计算机科学 2018-12-03 Zhilu Zhang , Mert R. Sabuncu

Black-box textual adversarial attacks are challenging due to the lack of model information and the discrete, non-differentiable nature of text. Existing methods often lack versatility for attacking different models, suffer from limited…

计算与语言 · 计算机科学 2025-01-22 Mingze Ni , Yongshun Gong , Wei Liu

In this paper, we present a machine learning approach for estimating the number of incident wavefronts in a direction of arrival scenario. In contrast to previous works, a multilayer neural network with a cross-entropy objective is trained.…

信号处理 · 电气工程与系统科学 2020-05-25 Andreas Barthelme , Reinhard Wiesmayr , Wolfgang Utschick

Recently, non-autoregressive (NAR) neural machine translation models have received increasing attention due to their efficient parallel decoding. However, the probabilistic framework of NAR models necessitates conditional independence…

计算与语言 · 计算机科学 2022-11-14 Xinyou Wang , Zaixiang Zheng , Shujian Huang

Recent studies have shown that deep neural networks are not well-calibrated and often produce over-confident predictions. The miscalibration issue primarily stems from using cross-entropy in classifications, which aims to align predicted…

机器学习 · 计算机科学 2025-02-05 Daehwan Kim , Haejun Chung , Ikbeom Jang

Benefiting from the sequence-level knowledge distillation, the Non-Autoregressive Transformer (NAT) achieves great success in neural machine translation tasks. However, existing knowledge distillation has side effects, such as propagating…

计算与语言 · 计算机科学 2023-08-07 Min Liu , Yu Bao , Chengqi Zhao , Shujian Huang

Deep neural networks have shown exceptional performance in various tasks, but their lack of robustness, reliability, and tendency to be overconfident pose challenges for their deployment in safety-critical applications like autonomous…

计算机视觉与模式识别 · 计算机科学 2023-07-20 Steven Landgraf , Markus Hillemann , Kira Wursthorn , Markus Ulrich

Massively multilingual models for neural machine translation (NMT) are theoretically attractive, but often underperform bilingual models and deliver poor zero-shot translations. In this paper, we explore ways to improve them. We argue that…

计算与语言 · 计算机科学 2020-04-27 Biao Zhang , Philip Williams , Ivan Titov , Rico Sennrich

Non-autoregressive neural machine translation (NAT) suffers from the multi-modality problem: the source sentence may have multiple correct translations, but the loss function is calculated only according to the reference sentence.…

计算与语言 · 计算机科学 2022-05-31 Chenze Shao , Xuanfu Wu , Yang Feng

In order to control computational complexity, neural machine translation (NMT) systems convert all rare words outside the vocabulary into a single unk symbol. Previous solution (Luong et al., 2015) resorts to use multiple numbered unks to…

计算与语言 · 计算机科学 2016-07-08 Xiaoqing Li , Jiajun Zhang , Chengqing Zong

Training automatic speech recognition (ASR) systems requires large amounts of well-curated paired data. However, human annotators usually perform "non-verbatim" transcription, which can result in poorly trained models. In this paper, we…

音频与语音处理 · 电气工程与系统科学 2023-09-28 Dongji Gao , Hainan Xu , Desh Raj , Leibny Paola Garcia Perera , Daniel Povey , Sanjeev Khudanpur

Token-choice Mixture-of-Experts (TC-MoE) routes each token to a fixed number of experts, limiting dynamic computation allocation and requiring auxiliary losses to maintain load balance. We propose Expert Threshold (ET) routing, where each…

人工智能 · 计算机科学 2026-03-13 Hanchi Sun , Yixin Liu , Yonghui Wu , Lichao Sun

Recent research has shown that pre-trained vision-language models are effective at identifying out-of-distribution (OOD) samples by using negative labels as guidance. However, employing consistent negative labels across different OOD…

计算机视觉与模式识别 · 计算机科学 2024-10-29 Yabin Zhang , Lei Zhang

In this work we present a new method of black-box optimization and constraint satisfaction. Existing algorithms that have attempted to solve this problem are unable to consider multiple modes, and are not able to adapt to changes in…

机器学习 · 计算机科学 2020-02-19 Kourosh Hakhamaneshi , Keertana Settaluri , Pieter Abbeel , Vladimir Stojanovic

In real world scenarios, out-of-distribution (OOD) datasets may have a large distributional shift from training datasets. This phenomena generally occurs when a trained classifier is deployed on varying dynamic environments, which causes a…

图像与视频处理 · 电气工程与系统科学 2022-09-08 Harshita Boonlia , Tanmoy Dam , Md Meftahul Ferdaus , Sreenatha G. Anavatti , Ankan Mullick

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

Traditionally artificial neural networks (ANNs) are trained by minimizing the cross-entropy between a provided groundtruth delta distribution (encoded as one-hot vector) and the ANN's predictive softmax distribution. It seems, however,…

计算机视觉与模式识别 · 计算机科学 2018-12-31 Pooran Singh Negi , David chan , Mohammad Mahoor

Open-set node classification (OSNC) allows unlabeled test data to contain novel classes previously unseen in the labeled data. The goal is to classify in-distribution (ID) nodes into corresponding known classes and reject…

社会与信息网络 · 计算机科学 2026-03-24 Junwei Gong , Xiao Shen , Zhihao Chen , Shirui Pan , Xiao Wang , Xi Zhou

Neural Machine Translation (NMT) is a new approach to machine translation that has shown promising results that are comparable to traditional approaches. A significant weakness in conventional NMT systems is their inability to correctly…

计算与语言 · 计算机科学 2015-06-02 Minh-Thang Luong , Ilya Sutskever , Quoc V. Le , Oriol Vinyals , Wojciech Zaremba