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The two key players in Generative Adversarial Networks (GANs), the discriminator and generator, are usually parameterized as deep neural networks (DNNs). On many generative tasks, GANs achieve state-of-the-art performance but are often…

机器学习 · 计算机科学 2019-01-31 Babajide O. Ayinde , Keishin Nishihama , Jacek M. Zurada

Recently, anomaly scores have been formulated using reconstruction loss of the adversarially learned generators and/or classification loss of discriminators. Unavailability of anomaly examples in the training data makes optimization of such…

计算机视觉与模式识别 · 计算机科学 2024-10-28 Muhammad Zaigham Zaheer , Jin Ha Lee , Arif Mahmood , Marcella Astrid , Seung-Ik Lee

Network Embedding is the task of learning continuous node representations for networks, which has been shown effective in a variety of tasks such as link prediction and node classification. Most of existing works aim to preserve different…

机器学习 · 计算机科学 2019-09-02 Quanyu Dai , Xiao Shen , Liang Zhang , Qiang Li , Dan Wang

Anomaly detection is a classical problem where the aim is to detect anomalous data that do not belong to the normal data distribution. Current state-of-the-art methods for anomaly detection on complex high-dimensional data are based on the…

Variational Autoencoders (VAEs) are expressive latent variable models that can be used to learn complex probability distributions from training data. However, the quality of the resulting model crucially relies on the expressiveness of the…

机器学习 · 计算机科学 2018-06-12 Lars Mescheder , Sebastian Nowozin , Andreas Geiger

Anomaly detection plays a critical role in Autonomous Vehicles (AVs) by identifying unusual behaviors through perception systems that could compromise safety and lead to hazardous situations. Current approaches, which often rely on…

人工智能 · 计算机科学 2025-07-08 Ashish Bastola , Mert D. Pesé , Long Cheng , Jonathon Smereka , Abolfazl Razi

We propose a framework of generative adversarial networks with multiple discriminators, which collaborate to represent a real dataset more effectively. Our approach facilitates learning a generator consistent with the underlying data…

机器学习 · 计算机科学 2024-04-04 Jinyoung Choi , Bohyung Han

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

Generative Adversarial Networks (GANs), as a framework for estimating generative models via an adversarial process, have attracted huge attention and have proven to be powerful in a variety of tasks. However, training GANs is well known for…

机器学习 · 计算机科学 2017-11-09 Zi-Yi Dou

One of the many Autonomous Systems (ASs), such as autonomous driving cars, performs various safety-critical functions. Many of these autonomous systems take advantage of Artificial Intelligence (AI) techniques to perceive their environment.…

计算机视觉与模式识别 · 计算机科学 2023-07-24 Nour Habib , Yunsu Cho , Abhishek Buragohain , Andreas Rausch

While deep neural networks have achieved remarkable success in various computer vision tasks, they often fail to generalize to new domains and subtle variations of input images. Several defenses have been proposed to improve the robustness…

计算机视觉与模式识别 · 计算机科学 2021-09-08 Omid Poursaeed , Tianxing Jiang , Harry Yang , Serge Belongie , SerNam Lim

We introduce KBGAN, an adversarial learning framework to improve the performances of a wide range of existing knowledge graph embedding models. Because knowledge graphs typically only contain positive facts, sampling useful negative…

计算与语言 · 计算机科学 2018-04-17 Liwei Cai , William Yang Wang

Despite inherent ill-definition, anomaly detection is a research endeavor of great interest within machine learning and visual scene understanding alike. Most commonly, anomaly detection is considered as the detection of outliers within a…

计算机视觉与模式识别 · 计算机科学 2019-05-03 Samet Akçay , Amir Atapour-Abarghouei , Toby P. Breckon

Generative Adversarial Networks (GAN) is an adversarial model, and it has been demonstrated to be effective for various generative tasks. However, GAN and its variants also suffer from many training problems, such as mode collapse and…

机器学习 · 计算机科学 2021-07-20 Junjie Li , Junwei Zhang , Xiaoyu Gong , Shuai Lü

Despite the enormous performance of deepneural networks (DNNs), recent studies have shown theirvulnerability to adversarial examples (AEs), i.e., care-fully perturbed inputs designed to fool the targetedDNN. Currently, the literature is…

计算机视觉与模式识别 · 计算机科学 2021-07-14 Anouar Kherchouche , Sid Ahmed Fezza , Wassim Hamidouche

The deep generative adversarial networks (GAN) recently have been shown to be promising for different computer vision applications, like image edit- ing, synthesizing high resolution images, generating videos, etc. These networks and the…

计算机视觉与模式识别 · 计算机科学 2018-04-18 Ali Diba , Vivek Sharma , Rainer Stiefelhagen , Luc Van Gool

Trajectory prediction is essential for autonomous vehicles (AVs) to plan correct and safe driving behaviors. While many prior works aim to achieve higher prediction accuracy, few study the adversarial robustness of their methods. To bridge…

机器学习 · 计算机科学 2022-09-20 Yulong Cao , Chaowei Xiao , Anima Anandkumar , Danfei Xu , Marco Pavone

We introduce a novel approach for training adversarial models by replacing the discriminator score with a bi-modal Gaussian distribution over the real/fake indicator variables. In order to do this, we train the Gaussian classifier to match…

机器学习 · 统计学 2018-08-21 Karan Grewal , R Devon Hjelm , Yoshua Bengio

In this paper, we propose a deep convolutional neural network (CNN) for anomaly detection in surveillance videos. The model is adapted from a typical auto-encoder working on video patches under the perspective of sparse combination…

计算机视觉与模式识别 · 计算机科学 2019-08-20 Trong Nguyen Nguyen , Jean Meunier

Detecting anomalous activity in human mobility data has a number of applications including road hazard sensing, telematic based insurance, and fraud detection in taxi services and ride sharing. In this paper we address two challenges that…

机器学习 · 计算机科学 2018-09-11 Kathryn Gray , Daniel Smolyak , Sarkhan Badirli , George Mohler