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When formulated as an unsupervised learning problem, anomaly detection often requires a model to learn the distribution of normal data. Previous works apply Generative Adversarial Networks (GANs) to anomaly detection tasks and show good…

机器学习 · 计算机科学 2021-06-15 Xu Han , Xiaohui Chen , Li-Ping Liu

The network intrusion detection task is challenging because of the imbalanced and unlabeled nature of the dataset it operates on. Existing generative adversarial networks (GANs), are primarily used for creating synthetic samples from reals.…

机器学习 · 计算机科学 2022-03-09 Wen Xu , Julian Jang-Jaccard , Tong Liu , Fariza Sabrina

The fact that image datasets are often imbalanced poses an intense challenge for deep learning techniques. In this paper, we propose a method to restore the balance in imbalanced images, by coalescing two concurrent methods, generative…

机器学习 · 计算机科学 2020-04-09 Pourya Shamsolmoali , Masoumeh Zareapoor , Linlin Shen , Abdul Hamid Sadka , Jie Yang

In this paper, we present a memory-augmented algorithm for anomaly detection. Classical anomaly detection algorithms focus on learning to model and generate normal data, but typically guarantees for detecting anomalous data are weak. The…

机器学习 · 计算机科学 2020-02-10 Ziyi Yang , Teng Zhang , Iman Soltani Bozchalooi , Eric Darve

Conditional Generative Adversarial Networks (cGAN) were designed to generate images based on the provided conditions, \eg, class-level distributions. However, existing methods have used the same generating architecture for all classes. This…

计算机视觉与模式识别 · 计算机科学 2021-04-07 Peng Zhou , Lingxi Xie , Xiaopeng Zhang , Bingbing Ni , Qi Tian

Acoustic anomaly detection aims at distinguishing abnormal acoustic signals from the normal ones. It suffers from the class imbalance issue and the lacking in the abnormal instances. In addition, collecting all kinds of abnormal or unknown…

音频与语音处理 · 电气工程与系统科学 2020-02-06 Chengwei Chen , Pan Chen , Lingyu Yang , Jinyuan Mo , Haichuan Song , Yuan Xie , Lizhuang Ma

Missing data is a common problem faced with real-world datasets. Imputation is a widely used technique to estimate the missing data. State-of-the-art imputation approaches, such as Generative Adversarial Imputation Nets (GAIN), model the…

机器学习 · 计算机科学 2020-12-02 Saqib Ejaz Awan , Mohammed Bennamoun , Ferdous Sohel , Frank M Sanfilippo , Girish Dwivedi

As an active network security protection scheme, intrusion detection system (IDS) undertakes the important responsibility of detecting network attacks in the form of malicious network traffic. Intrusion detection technology is an important…

密码学与安全 · 计算机科学 2022-06-22 Yi Cui , Wenfeng Shen , Jian Zhang , Weijia Lu , Chuang Liu , Lin Sun , Si Chen

The number of credit card fraud has been growing as technology grows and people can take advantage of it. Therefore, it is very important to implement a robust and effective method to detect such frauds. The machine learning algorithms are…

机器学习 · 计算机科学 2022-06-14 Sairamvinay Vijayaraghavan , Terry Guan , Jason , Song

Generative Adversarial Net (GAN) has been proven to be a powerful machine learning tool in image data analysis and generation. In this paper, we propose to use Conditional Generative Adversarial Net (CGAN) to learn and simulate time series…

机器学习 · 统计学 2019-04-26 Rao Fu , Jie Chen , Shutian Zeng , Yiping Zhuang , Agus Sudjianto

We present a deep learning model for data-driven simulations of random dynamical systems without a distributional assumption. The deep learning model consists of a recurrent neural network, which aims to learn the time marching structure,…

机器学习 · 计算机科学 2022-04-12 Kyongmin Yeo , Zan Li , Wesley M. Gifford

We propose a generative adversarial network (GAN) based deep learning method that serves the dual role of both identification and mitigation of cyber-attacks in wide-area damping control loops of power systems. Two specific types of attacks…

系统与控制 · 电气工程与系统科学 2024-08-09 Jishnudeep Kar , Aranya Chakrabortty

Generative adversarial nets (GANs) have been widely studied during the recent development of deep learning and unsupervised learning. With an adversarial training mechanism, GAN manages to train a generative model to fit the underlying…

信息检索 · 计算机科学 2018-06-12 Weinan Zhang

Generative adversarial networks (GANs) are a machine learning framework comprising a generative model for sampling from a target distribution and a discriminative model for evaluating the proximity of a sample to the target distribution.…

量子物理 · 物理学 2021-07-22 Daniel Herr , Benjamin Obert , Matthias Rosenkranz

As an essential tool in security, the intrusion detection system bears the responsibility of the defense to network attacks performed by malicious traffic. Nowadays, with the help of machine learning algorithms, intrusion detection systems…

密码学与安全 · 计算机科学 2022-05-11 Zilong Lin , Yong Shi , Zhi Xue

Developing efficient time series anomaly detection techniques is important to maintain service quality and provide early alarms. Generative neural network methods are one class of the unsupervised approaches that are achieving increasing…

机器学习 · 计算机科学 2022-10-07 Yueyan Gu , Farrokh Jazizadeh

Obtaining models that capture imaging markers relevant for disease progression and treatment monitoring is challenging. Models are typically based on large amounts of data with annotated examples of known markers aiming at automating…

计算机视觉与模式识别 · 计算机科学 2017-03-20 Thomas Schlegl , Philipp Seeböck , Sebastian M. Waldstein , Ursula Schmidt-Erfurth , Georg Langs

Generative Adversarial Network (GAN) and its variants have recently attracted intensive research interests due to their elegant theoretical foundation and excellent empirical performance as generative models. These tools provide a promising…

机器学习 · 计算机科学 2018-02-20 Liyang Xie , Kaixiang Lin , Shu Wang , Fei Wang , Jiayu Zhou

Generative adversarial networks (GANs) are a learning framework that rely on training a discriminator to estimate a measure of difference between a target and generated distributions. GANs, as normally formulated, rely on the generated…

机器学习 · 统计学 2018-02-23 R Devon Hjelm , Athul Paul Jacob , Tong Che , Adam Trischler , Kyunghyun Cho , Yoshua Bengio

This paper proposes a novel fault diagnosis approach based on generative adversarial networks (GAN) for imbalanced industrial time series where normal samples are much larger than failure cases. We combine a well-designed feature extractor…

机器学习 · 计算机科学 2022-06-17 Wenqian Jiang , Cheng Cheng , Beitong Zhou , Guijun Ma , Ye Yuan