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Generative Adversarial Networks (GANs) are a powerful class of generative models in the deep learning community. Current practice on large-scale GAN training utilizes large models and distributed large-batch training strategies, and is…

Optimization and Control · Mathematics 2020-10-21 Mingrui Liu , Wei Zhang , Youssef Mroueh , Xiaodong Cui , Jerret Ross , Tianbao Yang , Payel Das

In adversarial learning, discriminator often fails to guide the generator successfully since it distinguishes between real and generated images using silly or non-robust features. To alleviate this problem, this brief presents a simple but…

Machine Learning · Computer Science 2021-01-20 Yong-Goo Shin , Yoon-Jae Yeo , Sung-Jea Ko

This paper provides a solution for the activity detection and channel estimation problem in grant-free access with correlated device activity patterns. In particular, we consider a machine-type communications (MTC) network operating in…

Signal Processing · Electrical Eng. & Systems 2023-10-24 Hamza Djelouat , Mikko J. Sillanpää , Markku Juntti

The Generative Adversarial Networks (GANs) have demonstrated impressive performance for data synthesis, and are now used in a wide range of computer vision tasks. In spite of this success, they gained a reputation for being difficult to…

Machine Learning · Statistics 2017-12-07 Tatjana Chavdarova , François Fleuret

Generative adversarial networks (GANs) are successful deep generative models. GANs are based on a two-player minimax game. However, the objective function derived in the original motivation is changed to obtain stronger gradients when…

Machine Learning · Statistics 2016-11-10 Masatoshi Uehara , Issei Sato , Masahiro Suzuki , Kotaro Nakayama , Yutaka Matsuo

Activity detection is an important task in the next generation grant-free multiple access. While there are a number of existing algorithms designed for this purpose, they mostly require precise information about the network, such as…

Machine Learning · Computer Science 2024-02-05 Hao Zhang , Qingfeng Lin , Yang Li , Lei Cheng , Yik-Chung Wu

Massive access has been challenging for the fifth generation (5G) and beyond since the abundance of devices causes communication overload to skyrocket. In an uplink massive access scenario, device traffic is sporadic in any given coherence…

Information Theory · Computer Science 2023-05-03 Shanshan Zhang , Ying Cui , Wen Chen

Typical architectures of Generative AdversarialNetworks make use of a unimodal latent distribution transformed by a continuous generator. Consequently, the modeled distribution always has connected support which is cumbersome when learning…

Machine Learning · Statistics 2020-12-11 Ugo Tanielian , Thibaut Issenhuth , Elvis Dohmatob , Jeremie Mary

Graph neural networks (GNNs) face significant challenges with class imbalance, leading to biased inference results. To address this issue in heterogeneous graphs, we propose a novel framework that combines Graph Neural Network (GNN) and…

Machine Learning · Computer Science 2024-11-26 Hung-Chun Hsu , Bo-Jun Wu , Ming-Yi Hong , Che Lin , Chih-Yu Wang

Generative adversarial networks are generative models that are capable of replicating the implicit probability distribution of the input data with high accuracy. Traditionally, GANs consist of a Generator and a Discriminator which interact…

Machine Learning · Computer Science 2022-11-15 Xin Wang

In this work we present an adversarial training algorithm that exploits correlations in video to learn --without supervision-- an image generator model with a disentangled latent space. The proposed methodology requires only a few…

Computer Vision and Pattern Recognition · Computer Science 2019-10-25 Facundo Tuesca , Lucas C. Uzal

Generative adversarial network (GAN) has been shown to be useful in various applications, such as image recognition, text processing and scientific computing, due its strong ability to learn complex data distributions. In this study, a…

Geophysics · Physics 2021-09-14 Tianhao He , Dongxiao Zhang

Adversarial examples are data points misclassified by neural networks. Originally, adversarial examples were limited to adding small perturbations to a given image. Recent work introduced the generalized concept of unrestricted adversarial…

Machine Learning · Computer Science 2020-05-20 Martin Kotuliak , Sandro E. Schoenborn , Andrei Dan

For many wireless communication applications, traffic pattern modeling of radio signals combined with channel effects is much needed. While analytical models are used to capture these phenomena, real world non-linear effects (e.g. device…

Signal Processing · Electrical Eng. & Systems 2022-06-30 Haythem Chaker , Soumaya Hamouda , Nicola Michailow

Generative adversarial networks (GANs) have been a popular deep generative model for real-world applications. Despite many recent efforts on GANs that have been contributed, mode collapse and instability of GANs are still open problems…

Computer Vision and Pattern Recognition · Computer Science 2021-03-24 Shiming Chen , Wenjie Wang , Beihao Xia , Xinge You , Zehong Cao , Weiping Ding

We propose a higher-level associative memory for learning adversarial networks. Generative adversarial network (GAN) framework has a discriminator and a generator network. The generator (G) maps white noise (z) to data samples while the…

Machine Learning · Computer Science 2016-11-23 Tarik Arici , Asli Celikyilmaz

Malware detectors based on machine learning (ML) have been shown to be susceptible to adversarial malware examples. However, current methods to generate adversarial malware examples still have their limits. They either rely on detailed…

Cryptography and Security · Computer Science 2023-08-22 Daniel Gibert , Jordi Planes , Quan Le , Giulio Zizzo

The ability of a classifier to recognize unknown inputs is important for many classification-based systems. We discuss the problem of simultaneous classification and novelty detection, i.e. determining whether an input is from the known set…

Computer Vision and Pattern Recognition · Computer Science 2018-03-01 Mark Kliger , Shachar Fleishman

Anomaly detection is a task that recognizes whether an input sample is included in the distribution of a target normal class or an anomaly class. Conventional generative adversarial network (GAN)-based methods utilize an entire image…

Computer Vision and Pattern Recognition · Computer Science 2021-04-01 Jou Won Song , Kyeongbo Kong , Ye In Park , Suk-Ju Kang

Training of Generative Adversarial Network (GAN) on a video dataset is a challenge because of the sheer size of the dataset and the complexity of each observation. In general, the computational cost of training GAN scales exponentially with…

Computer Vision and Pattern Recognition · Computer Science 2020-06-02 Masaki Saito , Shunta Saito , Masanori Koyama , Sosuke Kobayashi