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相关论文: Fraud Detection Through Large-Scale Graph Clusteri…

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Deep graph clustering, which aims to reveal the underlying graph structure and divide the nodes into different clusters without human annotations, is a fundamental yet challenging task. However, we observed that the existing methods suffer…

计算机视觉与模式识别 · 计算机科学 2022-02-28 Yue Liu , Sihang Zhou , Xinwang Liu , Wenxuan Tu , Xihong Yang

Heterogeneous graphs are ubiquitous in real-world applications because they can represent various relationships between different types of entities. Therefore, learning embeddings in such graphs is a critical problem in graph machine…

机器学习 · 计算机科学 2024-04-02 Yue Zhang , Yuntian He , Saket Gurukar , Srinivasan Parthasarathy

Change detection (CD) in remote sensing images has been an ever-expanding area of research. To date, although many methods have been proposed using various techniques, accurately identifying changes is still a great challenge, especially in…

计算机视觉与模式识别 · 计算机科学 2021-02-17 Junzheng Wu , Biao Li , Yao Qin , Weiping Ni , Han Zhang , Yuli Sun

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…

社会与信息网络 · 计算机科学 2023-07-25 Shuzhi Gong , Richard O. Sinnott , Jianzhong Qi , Cecile Paris

Graph Neural Networks (GNNs) have demonstrated significant success in learning from graph-structured data but often struggle on heterophilous graphs, where connected nodes differ in features or class labels. This limitation arises from…

机器学习 · 计算机科学 2025-09-30 Zhongtian Sun , Anoushka Harit , Alexandra Cristea , Christl A. Donnelly , Pietro Liò

Fraud detection is to identify, monitor, and prevent potentially fraudulent activities from complex data. The recent development and success in AI, especially machine learning, provides a new data-driven way to deal with fraud. From a…

机器学习 · 统计学 2023-05-19 Biao Xu , Yao Wang , Xiuwu Liao , Kaidong Wang

With the proliferation of various online and mobile payment systems, credit card fraud has emerged as a significant threat to financial security. This study focuses on innovative applications of the latest Transformer models for more robust…

机器学习 · 计算机科学 2024-11-13 Chang Yu , Yongshun Xu , Jin Cao , Ye Zhang , Yinxin Jin , Mengran Zhu

Graph condensation (GC), which reduces the size of a large-scale graph by synthesizing a small-scale condensed graph as its substitution, has benefited various graph learning tasks. However, existing GC methods rely on centralized data…

机器学习 · 计算机科学 2024-12-23 Bo Yan , Sihao He , Cheng Yang , Shang Liu , Yang Cao , Chuan Shi

In this paper, we present an accurate and scalable approach to the face clustering task. We aim at grouping a set of faces by their potential identities. We formulate this task as a link prediction problem: a link exists between two faces…

计算机视觉与模式识别 · 计算机科学 2019-04-09 Zhongdao Wang , Liang Zheng , Yali Li , Shengjin Wang

As more and more attacks have been detected on Ethereum smart contracts, it has seriously affected finance and credibility. Current anti-fraud detection techniques, including code parsing or manual feature extraction, still have some…

机器学习 · 计算机科学 2025-03-20 Yihong Jin , Ze Yang , Xinhe Xu

Program or process is an integral part of almost every IT/OT system. Can we trust the identity/ID (e.g., executable name) of the program? To avoid detection, malware may disguise itself using the ID of a legitimate program, and a system…

密码学与安全 · 计算机科学 2019-05-10 Shen Wang , Zhengzhang Chen , Ding Li , Lu-An Tang , Jingchao Ni , Zhichun Li , Junghwan Rhee , Haifeng Chen , Philip S. Yu

In general, anomaly detection is the problem of distinguishing between normal data samples with well defined patterns or signatures and those that do not conform to the expected profiles. Financial transactions, customer reviews, social…

机器学习 · 计算机科学 2022-06-10 Paul Irofti , Andrei Patrascu , Andra Baltoiu

Nowadays, Graph Fraud Detection (GFD) in financial scenarios has become an urgent research topic to protect online payment security. However, as organized crime groups are becoming more professional in real-world scenarios, fraudsters are…

机器学习 · 计算机科学 2025-12-23 Jie Yang , Rui Zhang , Ziyang Cheng , Dawei Cheng , Guang Yang , Bo Wang

The recent decade witnessed a surge of increase in financial crimes across the public and private sectors, with an average cost of scams of $102m to financial institutions in 2022. Developing a mechanism for battling financial crimes is an…

机器学习 · 计算机科学 2023-04-20 Haobo Zhang , Junyuan Hong , Fan Dong , Steve Drew , Liangjie Xue , Jiayu Zhou

Vulnerability detection is a critical problem in software security and attracts growing attention both from academia and industry. Traditionally, software security is safeguarded by designated rule-based detectors that heavily rely on…

软件工程 · 计算机科学 2024-06-07 Tiehua Zhang , Rui Xu , Jianping Zhang , Yuze Liu , Xin Chen , Jun Yin , Xi Zheng

In recent years, there has been a growing effort to develop effective and efficient algorithms for fake account detection in online social networks. This survey comprehensively reviews existing methods, with a focus on graph-based…

社会与信息网络 · 计算机科学 2025-07-10 Ali Safarpoor Dehkordi , Ahad N. Zehmakan

Graph clustering, an important unsupervised problem, has been shown to be more resistant to advances in Graph Neural Networks (GNNs). In addition, almost all clustering methods focus on homophilic graphs and ignore heterophily. This…

机器学习 · 计算机科学 2026-03-11 Xuanting Xie , Erlin Pan , Zhao Kang , Wenyu Chen , Bingheng Li

In recent years, phishing scams have become the most serious type of crime involved in Ethereum, the second-largest blockchain platform. The existing phishing scams detection technology on Ethereum mostly uses traditional machine learning…

密码学与安全 · 计算机科学 2022-04-29 Sijia Li , Gaopeng Gou , Chang Liu , Chengshang Hou , Zhenzhen Li , Gang Xiong

The landscape of financial transactions has grown increasingly complex due to the expansion of global economic integration and advancements in information technology. This complexity poses greater challenges in detecting and managing…

统计金融 · 定量金融 2025-10-09 Dawei Cheng , Yao Zou , Sheng Xiang , Changjun Jiang

This study investigates fraud detection in ride hailing platforms through Graph Neural Networks (GNNs),focusing on the effectiveness of various models. By analyzing prevalent fraudulent activities, the research highlights and compares the…