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Adversarial learning can learn fairer and less biased models of language than standard methods. However, current adversarial techniques only partially mitigate model bias, added to which their training procedures are often unstable. In this…

机器学习 · 计算机科学 2021-01-26 Xudong Han , Timothy Baldwin , Trevor Cohn

We introduce ANTIDOTE, a new class of objectives for learning under noisy labels which are defined in terms of a relaxation over an information-divergence neighborhood. Using convex duality, we provide a reformulation as an adversarial…

机器学习 · 计算机科学 2025-08-12 Jeremiah Birrell , Reza Ebrahimi

In malware behavioral analysis, the list of accessed and created files very often indicates whether the examined file is malicious or benign. However, malware authors are trying to avoid detection by generating random filenames and/or…

机器学习 · 计算机科学 2021-10-26 Marek Galovic , Branislav Bosansky , Viliam Lisy

The goal of this work is to train robust speaker recognition models without speaker labels. Recent works on unsupervised speaker representations are based on contrastive learning in which they encourage within-utterance embeddings to be…

声音 · 计算机科学 2020-11-02 Jaesung Huh , Hee Soo Heo , Jingu Kang , Shinji Watanabe , Joon Son Chung

Contrastive learning (CL) is a popular technique for self-supervised learning (SSL) of visual representations. It uses pairs of augmentations of unlabeled training examples to define a classification task for pretext learning of a deep…

计算机视觉与模式识别 · 计算机科学 2020-10-26 Chih-Hui Ho , Nuno Vasconcelos

We investigate the problem of classifying - from a single image - the level of content in a cup or a drinking glass. This problem is made challenging by several ambiguities caused by transparencies, shape variations and partial occlusions,…

计算机视觉与模式识别 · 计算机科学 2021-06-17 Apostolos Modas , Alessio Xompero , Ricardo Sanchez-Matilla , Pascal Frossard , Andrea Cavallaro

We attribute the vulnerability of natural language processing models to the fact that similar inputs are converted to dissimilar representations in the embedding space, leading to inconsistent outputs, and we propose a novel robust training…

计算与语言 · 计算机科学 2022-07-28 Yichen Yang , Xiaosen Wang , Kun He

Previous adversarial training raises model robustness under the compromise of accuracy on natural data. In this paper, we reduce natural accuracy degradation. We use the model logits from one clean model to guide learning of another one…

计算机视觉与模式识别 · 计算机科学 2021-08-17 Jiequan Cui , Shu Liu , Liwei Wang , Jiaya Jia

Adversarial training has emerged as a key technique to enhance model robustness against adversarial input perturbations. Many of the existing methods rely on computationally expensive min-max problems that limit their application in…

Despite unconditional feature inversion being the foundation of many image synthesis applications, training an inverter demands a high computational budget, large decoding capacity and imposing conditions such as autoregressive priors. To…

计算机视觉与模式识别 · 计算机科学 2022-10-24 Renan A. Rojas-Gomez , Raymond A. Yeh , Minh N. Do , Anh Nguyen

Can language models transform inputs to protect text classifiers against adversarial attacks? In this work, we present ATINTER, a model that intercepts and learns to rewrite adversarial inputs to make them non-adversarial for a downstream…

计算与语言 · 计算机科学 2023-05-29 Ashim Gupta , Carter Wood Blum , Temma Choji , Yingjie Fei , Shalin Shah , Alakananda Vempala , Vivek Srikumar

Neural machine translation systems typically are trained on curated corpora and break when faced with non-standard orthography or punctuation. Resilience to spelling mistakes and typos, however, is crucial as machine translation systems are…

计算与语言 · 计算机科学 2020-09-15 Toms Bergmanis , Artūrs Stafanovičs , Mārcis Pinnis

Pretrained language models (PLMs) perform poorly under adversarial attacks. To improve the adversarial robustness, adversarial data augmentation (ADA) has been widely adopted to cover more search space of adversarial attacks by adding…

计算与语言 · 计算机科学 2021-06-08 Chenglei Si , Zhengyan Zhang , Fanchao Qi , Zhiyuan Liu , Yasheng Wang , Qun Liu , Maosong Sun

Language model pretraining has led to significant performance gains but careful comparison between different approaches is challenging. Training is computationally expensive, often done on private datasets of different sizes, and, as we…

计算与语言 · 计算机科学 2019-07-29 Yinhan Liu , Myle Ott , Naman Goyal , Jingfei Du , Mandar Joshi , Danqi Chen , Omer Levy , Mike Lewis , Luke Zettlemoyer , Veselin Stoyanov

Fine-tuned pre-trained language models (LMs) have achieved enormous success in many natural language processing (NLP) tasks, but they still require excessive labeled data in the fine-tuning stage. We study the problem of fine-tuning…

计算与语言 · 计算机科学 2021-04-01 Yue Yu , Simiao Zuo , Haoming Jiang , Wendi Ren , Tuo Zhao , Chao Zhang

Reading comprehension models often overfit to nuances of training datasets and fail at adversarial evaluation. Training with adversarially augmented dataset improves robustness against those adversarial attacks but hurts generalization of…

计算与语言 · 计算机科学 2020-11-18 Adyasha Maharana , Mohit Bansal

Transcribed datasets typically contain speaker identity for each instance in the data. We investigate two ways to incorporate this information during training: Multi-Task Learning and Adversarial Learning. In multi-task learning, the goal…

机器学习 · 计算机科学 2019-02-15 Yossi Adi , Neil Zeghidour , Ronan Collobert , Nicolas Usunier , Vitaliy Liptchinsky , Gabriel Synnaeve

Current SOTA adversarially robust models are mostly based on adversarial training (AT) and differ only by some regularizers either at inner maximization or outer minimization steps. Being repetitive in nature during the inner maximization…

机器学习 · 计算机科学 2021-11-02 Anindya Sarkar , Anirban Sarkar , Sowrya Gali , Vineeth N Balasubramanian

This is Btech thesis report on detection and purification of adverserially attacked images. A deep learning model is trained on certain training examples for various tasks such as classification, regression etc. By training, weights are…

机器学习 · 计算机科学 2022-05-18 Dvij Kalaria

Large Transformer-based language models are pre-trained on corpora of varying sizes, for a different number of steps and with different batch sizes. At the same time, more fundamental components, such as the pre-training objective or…

计算与语言 · 计算机科学 2021-05-12 M. Aßenmacher , P. Schulze , C. Heumann