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Deep generative models, such as Generative Adversarial Networks (GANs), synthesize diverse high-fidelity data samples by estimating the underlying distribution of high dimensional data. Despite their success, GANs may disclose private…

Machine Learning · Computer Science 2022-06-02 Parisa Hassanzadeh , Robert E. Tillman

Generative adversarial networks (GANs) have great successes on synthesizing data. However, the existing GANs restrict the discriminator to be a binary classifier, and thus limit their learning capacity for tasks that need to synthesize…

Computation and Language · Computer Science 2018-04-17 Kevin Lin , Dianqi Li , Xiaodong He , Zhengyou Zhang , Ming-Ting Sun

Speech enhancement is an essential task of improving speech quality in noise scenario. Several state-of-the-art approaches have introduced visual information for speech enhancement,since the visual aspect of speech is essentially unaffected…

Audio and Speech Processing · Electrical Eng. & Systems 2022-04-21 Xinmeng Xu , Yang Wang , Dongxiang Xu , Yiyuan Peng , Cong Zhang , Jie Jia , Binbin Chen

We propose a novel regularizer to improve the training of Generative Adversarial Networks (GANs). The motivation is that when the discriminator D spreads out its model capacity in the right way, the learning signals given to the generator G…

Machine Learning · Computer Science 2018-05-11 Yanshuai Cao , Gavin Weiguang Ding , Kry Yik-Chau Lui , Ruitong Huang

Generative Adversarial Networks (GANs) are known to be difficult to train, despite considerable research effort. Several regularization techniques for stabilizing training have been proposed, but they introduce non-trivial computational…

Machine Learning · Computer Science 2020-02-20 Han Zhang , Zizhao Zhang , Augustus Odena , Honglak Lee

The intelligibility of speech severely degrades in the presence of environmental noise and reverberation. In this paper, we propose a novel deep learning based system for modifying the speech signal to increase its intelligibility under the…

Audio and Speech Processing · Electrical Eng. & Systems 2021-09-17 Haoyu Li , Junichi Yamagishi

Text generation with generative adversarial networks (GANs) can be divided into the text-based and code-based categories according to the type of signals used for discrimination. In this work, we introduce a novel text-based approach called…

Computation and Language · Computer Science 2019-04-24 Md. Akmal Haidar , Mehdi Rezagholizadeh , Alan Do-Omri , Ahmad Rashid

Most existing zero-shot learning methods consider the problem as a visual semantic embedding one. Given the demonstrated capability of Generative Adversarial Networks(GANs) to generate images, we instead leverage GANs to imagine unseen…

Computer Vision and Pattern Recognition · Computer Science 2018-05-22 Yizhe Zhu , Mohamed Elhoseiny , Bingchen Liu , Xi Peng , Ahmed Elgammal

We propose two new techniques for training Generative Adversarial Networks (GANs). Our objectives are to alleviate mode collapse in GAN and improve the quality of the generated samples. First, we propose neighbor embedding, a manifold…

Computer Vision and Pattern Recognition · Computer Science 2018-11-06 Ngoc-Trung Tran , Tuan-Anh Bui , Ngai-Man Cheung

In this paper, we aim at improving the performance of synthesized speech in statistical parametric speech synthesis (SPSS) based on a generative adversarial network (GAN). In particular, we propose a novel architecture combining the…

Sound · Computer Science 2017-07-12 Shan Yang , Lei Xie , Xiao Chen , Xiaoyan Lou , Xuan Zhu , Dongyan Huang , Haizhou Li

Generative adversarial nets (GAN) has been successfully introduced for generating text to alleviate the exposure bias. However, discriminators in these models only evaluate the entire sequence, which causes feedback sparsity and mode…

Machine Learning · Computer Science 2019-05-31 Xingyuan Chen , Yanzhe Li , Peng Jin , Jiuhua Zhang , Xinyu Dai , Jiajun Chen , Gang Song

Since the introduction of Generative Adversarial Networks (GANs) in speech synthesis, remarkable achievements have been attained. In a thorough exploration of vocoders, it has been discovered that audio waveforms can be generated at speeds…

Audio and Speech Processing · Electrical Eng. & Systems 2024-08-14 Yubing Cao , Yongming Li , Liejun Wang , Yinfeng Yu

Recently, few certified defense methods have been developed to provably guarantee the robustness of a text classifier to adversarial synonym substitutions. However, all existing certified defense methods assume that the defenders are…

Computation and Language · Computer Science 2021-07-27 Jiehang Zeng , Xiaoqing Zheng , Jianhan Xu , Linyang Li , Liping Yuan , Xuanjing Huang

Generative Adversarial Networks (GANs) based semi-supervised learning (SSL) approaches are shown to improve classification performance by utilizing a large number of unlabeled samples in conjunction with limited labeled samples. However,…

Machine Learning · Computer Science 2020-09-16 Zexi Chen , Bharathkumar Ramachandra , Ranga Raju Vatsavai

Deep neural networks have been widely deployed in various machine learning tasks. However, recent works have demonstrated that they are vulnerable to adversarial examples: carefully crafted small perturbations to cause misclassification by…

Machine Learning · Computer Science 2019-03-01 Ke Sun , Zhanxing Zhu , Zhouchen Lin

Generative adversarial networks have seen rapid development in recent years and have led to remarkable improvements in generative modelling of images. However, their application in the audio domain has received limited attention, and…

Enormous online textual information provides intriguing opportunities for understandings of social and economic semantics. In this paper, we propose a novel text regression model based on a conditional generative adversarial network (GAN),…

Computation and Language · Computer Science 2019-04-25 Tao Li , Xudong Liu , Shihan Su

In general, the performance of automatic speech recognition (ASR) systems is significantly degraded due to the mismatch between training and test environments. Recently, a deep-learning-based image-to-image translation technique to…

Audio and Speech Processing · Electrical Eng. & Systems 2019-04-15 Jong-Hyeon Park , Myungwoo Oh , Hyung-Min Park

Recent work has shown that state-of-the-art models are highly vulnerable to adversarial perturbations of the input. We propose cowboy, an approach to detecting and defending against adversarial attacks by using both the discriminator and…

Machine Learning · Statistics 2018-05-29 Gokula Krishnan Santhanam , Paulina Grnarova

Despite the efficacy on a variety of computer vision tasks, deep neural networks (DNNs) are vulnerable to adversarial attacks, limiting their applications in security-critical systems. Recent works have shown the possibility of generating…

Computer Vision and Pattern Recognition · Computer Science 2018-12-21 Ziang Yan , Yiwen Guo , Changshui Zhang