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It is hard to directly implement Graph Neural Networks (GNNs) on large scaled graphs. Besides of existed neighbor sampling techniques, scalable methods decoupling graph convolutions and other learnable transformations into preprocessing and…

机器学习 · 计算机科学 2021-07-02 Chuxiong Sun , Hongming Gu , Jie Hu

Exploration-Exploitation (E{\&}E) algorithms are commonly adopted to deal with the feedback-loop issue in large-scale online recommender systems. Most of existing studies believe that high uncertainty can be a good indicator of potential…

信息检索 · 计算机科学 2022-05-31 Kailun Wu , Zhangming Chan , Weijie Bian , Lejian Ren , Shiming Xiang , Shuguang Han , Hongbo Deng , Bo Zheng

This paper investigates Graph Neural Networks (GNNs) application for self-supervised network intrusion and anomaly detection. GNNs are a deep learning approach for graph-based data that incorporate graph structures into learning to…

机器学习 · 计算机科学 2023-02-10 Evan Caville , Wai Weng Lo , Siamak Layeghy , Marius Portmann

Large language models (LLMs) can generate syntactically valid optimization programs, yet often struggle to reliably choose an effective modeling strategy, leading to incorrect formulations and inefficient solver behavior. We propose SAGE, a…

人工智能 · 计算机科学 2026-05-05 Ruiqing Zhao , Fengzhi Li , Yuan Zuo , Rui Liu , Yansong Liu , Yunfei Ma , Fanyu Meng , Junlan Feng

Secure aggregation (SecAgg) is a commonly-used privacy-enhancing mechanism in federated learning, affording the server access only to the aggregate of model updates while safeguarding the confidentiality of individual updates. Despite…

机器学习 · 计算机科学 2024-07-16 Khac-Hoang Ngo , Johan Östman , Giuseppe Durisi , Alexandre Graell i Amat

In network link prediction, it is possible to hide a target link from being predicted with a small perturbation on network structure. This observation may be exploited in many real world scenarios, for example, to preserve privacy, or to…

社会与信息网络 · 计算机科学 2020-04-06 Jinyin Chen , Jian Zhang , Zhi Chen , Min Du , Qi Xuan

In recent years several architectures have been proposed to learn embodied agents complex self-awareness models. In this paper, dynamic incremental self-awareness (SA) models are proposed that allow experiences done by an agent to be…

计算机视觉与模式识别 · 计算机科学 2018-06-12 Mahdyar Ravanbakhsh , Mohamad Baydoun , Damian Campo , Pablo Marin , David Martin , Lucio Marcenaro , Carlo S. Regazzoni

Intrusion detection into computer networks has become one of the most important issues in cybersecurity. Attackers keep on researching and coding to discover new vulnerabilities to penetrate information security system. In consequence…

密码学与安全 · 计算机科学 2020-12-17 Sergio Hidalgo-Espinoza , Kevin Chamorro-Cupueran , Oscar Chang-Tortolero

Adversarial attacks pose safety and security concerns to deep learning applications, but their characteristics are under-explored. Yet largely imperceptible, a strong trace could have been left by PGD-like attacks in an adversarial example.…

计算机视觉与模式识别 · 计算机科学 2022-11-08 Mo Zhou , Vishal M. Patel

Generating adversarial scenarios, which have the potential to fail autonomous driving systems, provides an effective way to improve robustness. Extending purely data-driven generative models, recent specialized models satisfy additional…

计算机视觉与模式识别 · 计算机科学 2023-07-21 Wenhao Ding , Haohong Lin , Bo Li , Ding Zhao

Intrusion detection is an arms race; attackers evade intrusion detection systems by developing new attack vectors to sidestep known defense mechanisms. Provenance provides a detailed, structured history of the interactions of digital…

密码学与安全 · 计算机科学 2018-06-05 Xueyuan Han , Thomas Pasquier , Margo Seltzer

Adversarial scenario generation is a cost-effective approach for safety assessment of autonomous driving systems. However, existing methods are often constrained to a single, fixed trade-off between competing objectives such as…

人工智能 · 计算机科学 2026-05-06 Tong Nie , Yuewen Mei , Yihong Tang , Junlin He , Jie Sun , Haotian Shi , Wei Ma , Jian Sun

Advanced Persistent Threats (APTs) are difficult to detect due to their complexity and stealthiness. To mitigate such attacks, many approaches model entities and their relationship using provenance graphs to detect the stealthy and…

密码学与安全 · 计算机科学 2026-01-06 Wenhao Yan , Ning An , Wei Qiao , Weiheng Wu , Bo Jiang , Zhigang Lu , Baoxu Liu , Junrong Liu

Graph Neural Networks (GNNs) have gained traction in Graph-based Machine Learning as a Service (GMLaaS) platforms, yet they remain vulnerable to graph-based model extraction attacks (MEAs), where adversaries reconstruct surrogate models by…

机器学习 · 计算机科学 2025-03-24 Zhan Cheng , Bolin Shen , Tianming Sha , Yuan Gao , Shibo Li , Yushun Dong

While the adoption of Service-Oriented Architectures (SOA) eases the implementation of features such as autonomous driving and over-the-air updates, it also increases the vehicle's exposure to attacks that may place road-users in harm. To…

计算机科学中的逻辑 · 计算机科学 2022-12-26 Yuri Gil Dantas , Simon Barner , Pei Ke , Vivek Nigam , Ulrich Schoepp

In this paper, we propose a novel hybrid deep learning architecture that synergistically combines Graph Neural Networks (GNNs), Recurrent Neural Networks (RNNs), and multi-head attention mechanisms to significantly enhance cybersecurity…

密码学与安全 · 计算机科学 2025-10-31 Jayant Biradar , Smit Shah , Tanmay Naik

The utility of tabular data for tasks ranging from model training to large-scale data analysis is often constrained by privacy concerns or regulatory hurdles. While existing data generation methods, particularly those based on Generative…

机器学习 · 计算机科学 2025-10-29 Tu Anh Hoang Nguyen , Dang Nguyen , Tri-Nhan Vo , Thuc Duy Le , Sunil Gupta

Edge-cloud hybrid inference offloads difficult inputs to a powerful remote model, but the uplink channel imposes hard per-request constraints on the number of bits that can be transmitted. We show that selecting transmitted content based…

机器学习 · 计算机科学 2026-04-22 Inhyeok Choi , Hyuncheol Park

Advance Persistent Threats (APTs), adopted by most delicate attackers, are becoming increasing common and pose great threat to various enterprises and institutions. Data provenance analysis on provenance graphs has emerged as a common…

密码学与安全 · 计算机科学 2023-10-17 Zian Jia , Yun Xiong , Yuhong Nan , Yao Zhang , Jinjing Zhao , Mi Wen

Attack graphs provide compact representations of the attack paths that an attacker can follow to compromise network resources by analysing network vulnerabilities and topology. These representations are a powerful tool for security risk…

密码学与安全 · 计算机科学 2016-06-23 Luis Muñoz-González , Daniele Sgandurra , Andrea Paudice , Emil C. Lupu