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Graph neural networks (GNNs) have achieved tremendous success in graph mining. However, the inability of GNNs to model substructures in graphs remains a significant drawback. Specifically, message-passing GNNs (MPGNNs), as the prevailing…

机器学习 · 计算机科学 2021-04-08 Qingqing Long , Yilun Jin , Yi Wu , Guojie Song

Network topology inference is a prominent problem in Network Science. Most graph signal processing (GSP) efforts to date assume that the underlying network is known, and then analyze how the graph's algebraic and spectral characteristics…

信号处理 · 电气工程与系统科学 2019-05-22 Gonzalo Mateos , Santiago Segarra , Antonio G. Marques , Alejandro Ribeiro

Developing methods to process irregularly structured data is crucial in applications like gene-regulatory, brain, power, and socioeconomic networks. Graphs have been the go-to algebraic tool for modeling the structure via nodes and edges…

信号处理 · 电气工程与系统科学 2025-02-17 Elvin Isufi , Geert Leus , Baltasar Beferull-Lozano , Sergio Barbarossa , Paolo Di Lorenzo

We introduce Graph-Structured Sum-Product Networks (GraphSPNs), a probabilistic approach to structured prediction for problems where dependencies between latent variables are expressed in terms of arbitrary, dynamic graphs. While many…

机器学习 · 计算机科学 2017-11-23 Kaiyu Zheng , Andrzej Pronobis , Rajesh P. N. Rao

Graph augmentation methods play a crucial role in improving the performance and enhancing generalisation capabilities in Graph Neural Networks (GNNs). Existing graph augmentation methods mainly perturb the graph structures, and are usually…

机器学习 · 计算机科学 2024-08-14 Xiangyu Zhao , Zehui Li , Mingzhu Shen , Guy-Bart Stan , Pietro Liò , Yiren Zhao

Transformers have revolutionized performance in Natural Language Processing and Vision, paving the way for their integration with Graph Neural Networks (GNNs). One key challenge in enhancing graph transformers is strengthening the…

机器学习 · 计算机科学 2026-01-09 Yun Young Choi , Sun Woo Park , Minho Lee , Youngho Woo

Researchers of temporal networks (e.g., social networks and transaction networks) have been interested in mining dynamic patterns of nodes from their diverse interactions. Inspired by recently powerful graph mining methods like skip-gram…

信息检索 · 计算机科学 2023-04-18 Tongya Zheng , Zunlei Feng , Tianli Zhang , Yunzhi Hao , Mingli Song , Xingen Wang , Xinyu Wang , Ji Zhao , Chun Chen

Generative linguistic steganography mainly utilized language models and applied steganographic sampling (stegosampling) to generate high-security steganographic text (stegotext). However, previous methods generally lead to statistical…

计算与语言 · 计算机科学 2021-06-04 Siyu Zhang , Zhongliang Yang , Jinshuai Yang , Yongfeng Huang

Attack trees and attack graphs are both common graphical threat models used by organizations to better understand possible cybersecurity threats. These models have been primarily seen as separate entities, to be used and researched in…

密码学与安全 · 计算机科学 2021-10-07 Nathan Daniel Schiele , Olga Gadyatskaya

Graph neural networks (GNNs) have shown great success in detecting intellectual property (IP) piracy and hardware Trojans (HTs). However, the machine learning community has demonstrated that GNNs are susceptible to data poisoning attacks,…

密码学与安全 · 计算机科学 2023-03-27 Lilas Alrahis , Satwik Patnaik , Muhammad Abdullah Hanif , Muhammad Shafique , Ozgur Sinanoglu

The irreducible complexity of natural phenomena has led Graph Neural Networks to be employed as a standard model to perform representation learning tasks on graph-structured data. While their capacity to capture local and global patterns is…

机器学习 · 计算机科学 2024-02-13 Lorenzo Giusti

Graph Neural Networks (GNN) have emerged as a popular and standard approach for learning from graph-structured data. The literature on GNN highlights the potential of this evolving research area and its widespread adoption in real-life…

机器学习 · 计算机科学 2024-03-25 Sukhdeep Singh , Anuj Sharma , Vinod Kumar Chauhan

Password authentication is a very important system security procedure to gain access to user resources. In the Traditional password authentication methods a server has check the authenticity of the users. In our proposed method users can…

密码学与安全 · 计算机科学 2011-12-13 A. S. N. Chakravarthy , Penmetsa V. Krishna Raja , Prof. P. S. Avadhani

Real-world heterogeneous graphs are inherently noisy and usually not in the optimal graph structures for downstream tasks, which often adversely affects the performance of GRL models in downstream tasks. Although Graph Structure Learning…

机器学习 · 计算机科学 2026-04-08 He Zhao , Zhiwei Zeng , Yongwei Wang , Chunyan Miao

Recent research has demonstrated the vulnerability of fingerprint recognition systems to dictionary attacks based on MasterPrints. MasterPrints are real or synthetic fingerprints that can fortuitously match with a large number of…

计算机视觉与模式识别 · 计算机科学 2018-10-22 Philip Bontrager , Aditi Roy , Julian Togelius , Nasir Memon , Arun Ross

The security of passwords depends on a thorough understanding of the strategies used by attackers. Unfortunately, real-world adversaries use pragmatic guessing tactics like dictionary attacks, which are difficult to simulate in password…

密码学与安全 · 计算机科学 2022-08-16 Fangyi Yu , Miguel Vargas Martin

Graph Neural Networks (GNNs) have achieved notable success in tasks such as social and transportation networks. However, recent studies have highlighted the vulnerability of GNNs to backdoor attacks, raising significant concerns about their…

机器学习 · 计算机科学 2025-10-21 Chang Liu , Hai Huang , Yujie Xing , Xingquan Zuo

Directly motivated by security-related applications from the Homeland Security Enterprise, we focus on the privacy-preserving analysis of graph data, which provides the crucial capacity to represent rich attributes and relationships. In…

密码学与安全 · 计算机科学 2022-07-04 Dongqi Fu , Jingrui He , Hanghang Tong , Ross Maciejewski

Generative Adversarial Networks (GANs) have been widely used in various application scenarios. Since the production of a commercial GAN requires substantial computational and human resources, the copyright protection of GANs is urgently…

密码学与安全 · 计算机科学 2024-08-08 Guanlin Li , Guowen Xu , Han Qiu , Shangwei Guo , Run Wang , Jiwei Li , Tianwei Zhang , Rongxing Lu

The rise of advanced persistent threats (APTs) has marked a significant cybersecurity challenge, characterized by sophisticated orchestration, stealthy execution, extended persistence, and targeting valuable assets across diverse sectors.…

密码学与安全 · 计算机科学 2024-04-19 Yuntao Wang , Han Liu , Zhendong Li , Zhou Su , Jiliang Li