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Graph is an important data representation ubiquitously existing in the real world. However, analyzing the graph data is computationally difficult due to its non-Euclidean nature. Graph embedding is a powerful tool to solve the graph…

Cryptography and Security · Computer Science 2021-10-07 Zhikun Zhang , Min Chen , Michael Backes , Yun Shen , Yang Zhang

Cross-user variability poses a significant challenge in sensor-based Human Activity Recognition (HAR) systems, as traditional models struggle to generalize across users due to differences in behavior, sensor placement, and data…

Machine Learning · Computer Science 2025-06-04 Xiaozhou Ye , Kevin I-Kai Wang

Deep neural networks have been applied in wireless communications system to intelligently adapt to dynamically changing channel conditions, while the users are still under the threat of the malicious attacks due to the broadcasting property…

Information Theory · Computer Science 2025-05-02 Jianyuan Chen , Lin Zhang , Zuwei Chen , Yawen Chen , Hongcheng Zhuang

Graph neural networks (GNNs) are widely used for learning from graph-structured data in domains such as social networks, recommender systems, and financial platforms. To comply with privacy regulations like the GDPR, CCPA, and PIPEDA,…

Machine Learning · Computer Science 2026-03-20 Jiahao Zhang , Yilong Wang , Suhang Wang

Fooling people with highly realistic fake images generated with Deepfake or GANs brings a great social disturbance to our society. Many methods have been proposed to detect fake images, but they are vulnerable to adversarial perturbations…

Computer Vision and Pattern Recognition · Computer Science 2021-06-04 Quanyu Liao , Yuezun Li , Xin Wang , Bin Kong , Bin Zhu , Siwei Lyu , Youbing Yin , Qi Song , Xi Wu

Graph Neural Networks (GNNs) are a class of deep learning-based methods for processing graph domain information. GNNs have recently become a widely used graph analysis method due to their superior ability to learn representations for…

Cryptography and Security · Computer Science 2024-12-10 Jing Xu , Rui Wang , Stefanos Koffas , Kaitai Liang , Stjepan Picek

Deep neural networks are vulnerable to adversarial examples, which are crafted by adding small, human-imperceptible perturbations to the original images, but make the model output inaccurate predictions. Before deep neural networks are…

Computer Vision and Pattern Recognition · Computer Science 2021-01-13 Bo Yang , Kaiyong Xu , Hengjun Wang , Hengwei Zhang

Deep learning methods for graphs achieve remarkable performance across a variety of domains. However, recent findings indicate that small, unnoticeable perturbations of graph structure can catastrophically reduce performance of even the…

Machine Learning · Computer Science 2020-10-29 Xiang Zhang , Marinka Zitnik

DeepFake face swapping presents a significant threat to online security and social media, which can replace the source face in an arbitrary photo/video with the target face of an entirely different person. In order to prevent this fraud,…

Computer Vision and Pattern Recognition · Computer Science 2022-04-27 Junhao Dong , Yuan Wang , Jianhuang Lai , Xiaohua Xie

Recent researches have shown that machine learning based malware detection algorithms are very vulnerable under the attacks of adversarial examples. These works mainly focused on the detection algorithms which use features with fixed…

Machine Learning · Computer Science 2017-05-24 Weiwei Hu , Ying Tan

The popularity of online social networks has enabled rapid dissemination of information. People now can share and consume information much more rapidly than ever before. However, low-quality and/or accidentally/deliberately fake information…

Social and Information Networks · Computer Science 2023-07-25 Shuzhi Gong , Richard O. Sinnott , Jianzhong Qi , Cecile Paris

Graph Neural Networks (GNNs) have achieved tremendous success in many graph mining tasks benefitting from the message passing strategy that fuses the local structure and node features for better graph representation learning. Despite the…

Cryptography and Security · Computer Science 2022-07-06 Shuiqiao Yang , Bao Gia Doan , Paul Montague , Olivier De Vel , Tamas Abraham , Seyit Camtepe , Damith C. Ranasinghe , Salil S. Kanhere

Adversarial attacks on deep learning models have received increased attention in recent years. Work in this area has mostly focused on gradient-based techniques, so-called 'white-box' attacks, where the attacker has access to the targeted…

Computer Vision and Pattern Recognition · Computer Science 2025-10-21 Raz Lapid , Eylon Mizrahi , Moshe Sipper

The paper presents a novel approach of spoofing wireless signals by using a general adversarial network (GAN) to generate and transmit synthetic signals that cannot be reliably distinguished from intended signals. It is of paramount…

Signal Processing · Electrical Eng. & Systems 2019-05-09 Yi Shi , Kemal Davaslioglu , Yalin E. Sagduyu

Vulnerability detection is crucial for ensuring the security and reliability of software systems. Recently, Graph Neural Networks (GNNs) have emerged as a prominent code embedding approach for vulnerability detection, owing to their ability…

Software Engineering · Computer Science 2024-07-16 Zhaoyang Chu , Yao Wan , Qian Li , Yang Wu , Hongyu Zhang , Yulei Sui , Guandong Xu , Hai Jin

Applications of machine learning (ML) models and convolutional neural networks (CNNs) have been rapidly increased. Although state-of-the-art CNNs provide high accuracy in many applications, recent investigations show that such networks are…

Machine Learning · Computer Science 2021-10-18 Hadi Zanddizari , Behnam Zeinali , J. Morris Chang

An attack on deep learning systems where intelligent machines collaborate to solve problems could cause a node in the network to make a mistake on a critical judgment. At the same time, the security and privacy concerns of AI have…

Machine Learning · Computer Science 2021-08-03 Yuwei Sun , Ng Chong , Hideya Ochiai

Adversarial examples are inputs with imperceptible perturbations that easily misleading deep neural networks(DNNs). Recently, adversarial patch, with noise confined to a small and localized patch, has emerged for its easy feasibility in…

Computer Vision and Pattern Recognition · Computer Science 2020-08-04 Aishan Liu , Jiakai Wang , Xianglong Liu , Bowen Cao , Chongzhi Zhang , Hang Yu

Graph Neural Network (GNN) has achieved remarkable success in various graph learning tasks, such as node classification, link prediction and graph classification. The key to the success of GNN lies in its effective structure information…

Cryptography and Security · Computer Science 2024-05-30 Peican Zhu , Zechen Pan , Keke Tang , Xiaodong Cui , Jinhuan Wang , Qi Xuan

Graph neural network (GNN) have demonstrated exceptional performance in solving critical problems across diverse domains yet remain susceptible to backdoor attacks. Existing studies on backdoor attack for graph classification are limited to…

Machine Learning · Computer Science 2026-04-09 Md Nabi Newaz Khan , Abdullah Arafat Miah , Yu Bi