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While deep learning in the form of recurrent neural networks (RNNs) has caused a significant improvement in neural language modeling, the fact that they are extremely prone to overfitting is still a mainly unresolved issue. In this paper we…

计算与语言 · 计算机科学 2022-11-18 Sajad Movahedi , Azadeh Shakery

Adversarial attacks refer to a set of methods that perturb the input to a classification model in order to fool the classifier. In this paper we apply different gradient based adversarial attack algorithms on five deep learning models…

机器学习 · 计算机科学 2019-08-16 Vinod Subramanian , Emmanouil Benetos , Ning Xu , SKoT McDonald , Mark Sandler

Recent advancement in Generative Adversarial Networks in speech synthesis domain[3],[2] have shown, that it's possible to train GANs [8] in a reliable manner for high quality coherent waveform generation from mel-spectograms. We propose…

音频与语音处理 · 电气工程与系统科学 2020-06-16 Luka Chkhetiani , Levan Bejanidze

Machine Learning models are vulnerable to adversarial attacks that rely on perturbing the input data. This work proposes a novel strategy using Autoencoder Deep Neural Networks to defend a machine learning model against two gradient-based…

机器学习 · 计算机科学 2018-12-10 Rajeev Sahay , Rehana Mahfuz , Aly El Gamal

Generative adversarial networks (GAN) have been effective for learning generative models for real-world data. However, existing GANs (GAN and its variants) tend to suffer from training problems such as instability and mode collapse. In this…

机器学习 · 计算机科学 2018-03-05 Chaoyue Wang , Chang Xu , Xin Yao , Dacheng Tao

In realistic environments, speech is usually interfered by various noise and reverberation, which dramatically degrades the performance of automatic speech recognition (ASR) systems. To alleviate this issue, the commonest way is to use a…

声音 · 计算机科学 2018-05-04 Bin Liu , Shuai Nie , Yaping Zhang , Dengfeng Ke , Shan Liang , Wenju Liu1

Adversarial examples are typically constructed by perturbing an existing data point within a small matrix norm, and current defense methods are focused on guarding against this type of attack. In this paper, we propose unrestricted…

机器学习 · 计算机科学 2018-12-04 Yang Song , Rui Shu , Nate Kushman , Stefano Ermon

A method for statistical parametric speech synthesis incorporating generative adversarial networks (GANs) is proposed. Although powerful deep neural networks (DNNs) techniques can be applied to artificially synthesize speech waveform, the…

声音 · 计算机科学 2017-09-26 Yuki Saito , Shinnosuke Takamichi , Hiroshi Saruwatari

In this paper we investigate speech denoising as a defense against adversarial attacks on automatic speech recognition (ASR) systems. Adversarial attacks attempt to force misclassification by adding small perturbations to the original…

音频与语音处理 · 电气工程与系统科学 2021-07-13 Anirudh Sreeram , Nicholas Mehlman , Raghuveer Peri , Dillon Knox , Shrikanth Narayanan

Deepfake represents a category of face-swapping attacks that leverage machine learning models such as autoencoders or generative adversarial networks. Although the concept of the face-swapping is not new, its recent technical advances make…

计算机视觉与模式识别 · 计算机科学 2020-06-16 Chaofei Yang , Lei Ding , Yiran Chen , Hai Li

We propose a unified compression framework that uses generative adversarial networks (GAN) to compress image and speech signals. The compressed signal is represented by a latent vector fed into a generator network which is trained to…

信号处理 · 电气工程与系统科学 2019-12-10 Bowen Liu , Ang Cao , Hun-seok Kim

The reliance on deep learning algorithms has grown significantly in recent years. Yet, these models are highly vulnerable to adversarial attacks, which introduce visually imperceptible perturbations into testing data to induce…

机器学习 · 计算机科学 2019-06-14 Rajeev Sahay , Rehana Mahfuz , Aly El Gamal

This work proposes a novel algorithm to generate natural language adversarial input for text classification models, in order to investigate the robustness of these models. It involves applying gradient-based perturbation on the sentence…

信息检索 · 计算机科学 2019-09-11 Yu-Lun Hsieh , Minhao Cheng , Da-Cheng Juan , Wei Wei , Wen-Lian Hsu , Cho-Jui Hsieh

Recent advancements in natural language processing have highlighted the vulnerability of deep learning models to adversarial attacks. While various defence mechanisms have been proposed, there is a lack of comprehensive benchmarks that…

计算与语言 · 计算机科学 2025-01-23 Yang Wang , Chenghua Lin

In this paper, we present Extreme Bandwidth Extension Network (EBEN), a Generative Adversarial network (GAN) that enhances audio measured with body-conduction microphones. This type of capture equipment suppresses ambient noise at the…

音频与语音处理 · 电气工程与系统科学 2024-07-18 Julien Hauret , Thomas Joubaud , Véronique Zimpfer , Éric Bavu

Generative adversarial networks (GANs) provide a way to learn deep representations without extensively annotated training data. They achieve this through deriving backpropagation signals through a competitive process involving a pair of…

计算机视觉与模式识别 · 计算机科学 2018-02-14 Antonia Creswell , Tom White , Vincent Dumoulin , Kai Arulkumaran , Biswa Sengupta , Anil A Bharath

Despite recent success on various tasks, deep learning techniques still perform poorly on adversarial examples with small perturbations. While optimization-based methods for adversarial attacks are well-explored in the field of computer…

计算与语言 · 计算机科学 2023-06-09 Lifan Yuan , Yichi Zhang , Yangyi Chen , Wei Wei

Speech bandwidth expansion is crucial for expanding the frequency range of low-bandwidth speech signals, thereby improving audio quality, clarity and perceptibility in digital applications. Its applications span telephony, compression,…

声音 · 计算机科学 2024-07-30 Mahmoud Salhab , Haidar Harmanani

Research shows that natural language processing models are generally considered to be vulnerable to adversarial attacks; but recent work has drawn attention to the issue of validating these adversarial inputs against certain criteria (e.g.,…

计算与语言 · 计算机科学 2021-09-10 Maximilian Mozes , Max Bartolo , Pontus Stenetorp , Bennett Kleinberg , Lewis D. Griffin

Generative Adversarial Networks (GANs) have become exceedingly popular in a wide range of data-driven research fields, due in part to their success in image generation. Their ability to generate new samples, often from only a small amount…

计算与语言 · 计算机科学 2019-03-19 Thomas Wiest , Nicholas Cummins , Alice Baird , Simone Hantke , Judith Dineley , Björn Schuller