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With the advancement of IoT technology, many electronic devices are interconnected through networks, communicating with each other and performing specific roles. However, as numerous devices join networks, the threat of cyberattacks also…

密码学与安全 · 计算机科学 2023-11-28 Sangbeom Park , Jaesung Lee , Jeong Do Yoo , Min Geun Song , Hyosun Lee , Jaewoong Choi , Chaeyeon Sagong , Huy Kang Kim

This paper looks into the problem of detecting network anomalies by analyzing NetFlow records. While many previous works have used statistical models and machine learning techniques in a supervised way, such solutions have the limitations…

机器学习 · 计算机科学 2019-03-18 Quoc Phong Nguyen , Kar Wai Lim , Dinil Mon Divakaran , Kian Hsiang Low , Mun Choon Chan

Automated machine learning (AutoML) has seen a resurgence in interest with the boom of deep learning over the past decade. In particular, Neural Architecture Search (NAS) has seen significant attention throughout the AutoML research…

神经与进化计算 · 计算机科学 2020-09-23 Min Shi , David A. Wilson , Xingquan Zhu , Yu Huang , Yuan Zhuang , Jianxun Liu , Yufei Tang

Deep neural networks (DNNs) deployed in a cloud often allow users to query models via the APIs. However, these APIs expose the models to model extraction attacks (MEAs). In this attack, the attacker attempts to duplicate the target model by…

密码学与安全 · 计算机科学 2025-06-26 Satoru Koda , Ikuya Morikawa

Graph neural networks (GNNs) have emerged as a state-of-the-art approach to model and draw inferences from large scale graph-structured data in various application settings such as social networking. The primary goal of a GNN is to learn an…

机器学习 · 计算机科学 2023-09-06 Asim Waheed , Vasisht Duddu , N. Asokan

The emergence of graph foundation models (GFMs), particularly those incorporating language models (LMs), has revolutionized graph learning and demonstrated remarkable performance on text-attributed graphs (TAGs). However, compared to…

密码学与安全 · 计算机科学 2025-10-17 Xiaoyu Xue , Yuni Lai , Chenxi Huang , Yulin Zhu , Gaolei Li , Xiaoge Zhang , Kai Zhou

Botnets are now a major source for many network attacks, such as DDoS attacks and spam. However, most traditional detection methods heavily rely on heuristically designed multi-stage detection criteria. In this paper, we consider the neural…

密码学与安全 · 计算机科学 2020-03-16 Jiawei Zhou , Zhiying Xu , Alexander M. Rush , Minlan Yu

Recent studies have revealed that GNNs are highly susceptible to multiple adversarial attacks. Among these, graph backdoor attacks pose one of the most prominent threats, where attackers cause models to misclassify by learning the…

密码学与安全 · 计算机科学 2024-10-21 Hao Sui , Bing Chen , Jiale Zhang , Chengcheng Zhu , Di Wu , Qinghua Lu , Guodong Long

Graph Neural Networks(GNNs) are vulnerable to adversarial attack that cause performance degradation by adding small perturbations to the graph. Gradient-based attacks are one of the most commonly used methods and have achieved good…

机器学习 · 计算机科学 2024-06-21 Yang Chen , Bin Zhou

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,…

机器学习 · 计算机科学 2026-03-20 Jiahao Zhang , Yilong Wang , Suhang Wang

Graph Neural Networks (GNNs) have attracted increasing attention in recent years and have achieved excellent performance in semi-supervised node classification tasks. The success of most GNNs relies on one fundamental assumption, i.e., the…

机器学习 · 计算机科学 2024-12-03 Junchao Lin , Yuan Wan , Jingwen Xu , Xingchen Qi

Graph-based learning provides a powerful framework for modeling complex relational structures; however, its application within the domain of wireless security remains significantly underexplored. In this work, we introduce the first…

网络与互联网体系结构 · 计算机科学 2025-06-19 Dania Herzalla , Willian T. Lunardi , Martin Andreoni

Recent studies show that Graph Neural Networks(GNNs) are vulnerable and easily fooled by small perturbations, which has raised considerable concerns for adapting GNNs in various safety-critical applications. In this work, we focus on the…

机器学习 · 计算机科学 2022-11-16 Zhihao Zhu , Chenwang Wu , Min Zhou , Hao Liao , Defu Lian , Enhong Chen

Advanced Persistent Threats (APTs) represent a significant challenge in cybersecurity due to their sophisticated and stealthy nature. Traditional Intrusion Detection Systems (IDS) often fall short in detecting these multi-stage attacks.…

密码学与安全 · 计算机科学 2025-01-08 Atmane Ayoub Mansour Bahar , Kamel Soaid Ferrahi , Mohamed-Lamine Messai , Hamida Seba , Karima Amrouche

Recent studies show that well-devised perturbations on graph structures or node features can mislead trained Graph Neural Network (GNN) models. However, these methods often overlook practical assumptions, over-rely on heuristics, or…

机器学习 · 计算机科学 2024-08-21 Xiaodong Yang , Xiaoting Li , Huiyuan Chen , Yiwei Cai

Cyberterrorism poses a formidable threat to digital infrastructures, with increasing reliance on encrypted, decentralized platforms that obscure threat actor activity. To address the challenge of analyzing such adversarial networks while…

密码学与安全 · 计算机科学 2025-05-23 Anas Ali , Mubashar Husain , Peter Hans

Many real-world scenarios involving streaming information can be represented as temporal graphs, where data flows through dynamic changes in edges over time. Anomaly detection in this context has the objective of identifying unusual…

机器学习 · 计算机科学 2025-12-01 Simone Mungari , Albert Bifet , Giuseppe Manco , Bernhard Pfahringer

In the evolving field of psychopathology, the accurate assessment and forecasting of data derived from Ecological Momentary Assessment (EMA) is crucial. EMA offers contextually-rich psychopathological measurements over time, that…

机器学习 · 计算机科学 2024-03-29 Mandani Ntekouli , Gerasimos Spanakis , Lourens Waldorp , Anne Roefs

The Model Context Protocol (MCP) has become a widely adopted interface for LLM agents to invoke external tools, yet learned monitoring of MCP tool-call traffic remains underexplored. In this article, the proposed detector is presented as an…

密码学与安全 · 计算机科学 2026-05-25 Sultan Zavrak

Graph Neural Networks (GNNs) have achieved promising results in tasks such as node classification and graph classification. However, recent studies reveal that GNNs are vulnerable to backdoor attacks, posing a significant threat to their…

机器学习 · 计算机科学 2025-03-13 Zhiwei Zhang , Minhua Lin , Junjie Xu , Zongyu Wu , Enyan Dai , Suhang Wang