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In this paper, we present a general scheme for building reproducible and extensible datasets for website phishing detection. The aim is to (1) enable comparison of systems using different features, (2) overtake the short-lived nature of…

Cryptography and Security · Computer Science 2024-04-24 Abdelhakim Hannousse , Salima Yahiouche

Phishing is an increasingly sophisticated form of cyberattack that is inflicting huge financial damage to corporations throughout the globe while also jeopardizing individuals' privacy. Attackers are constantly devising new methods of…

Cryptography and Security · Computer Science 2024-03-18 Asif Newaz , Farhan Shahriyar Haq , Nadim Ahmed

Online reviews significantly impact consumers' decision-making process and firms' economic outcomes and are widely seen as crucial to the success of online markets. Firms, therefore, have a strong incentive to manipulate ratings using fake…

Social and Information Networks · Computer Science 2024-10-24 Sherry He , Brett Hollenbeck , Gijs Overgoor , Davide Proserpio , Ali Tosyali

Detecting fraud in modern supply chains is a growing challenge, driven by the complexity of global networks and the scarcity of labeled data. Traditional detection methods often struggle with class imbalance and limited supervision,…

Machine Learning · Computer Science 2025-08-12 Fatemeh Moradi , Mehran Tarif , Mohammadhossein Homaei

Anomaly detection is a critical challenge across various research domains, aiming to identify instances that deviate from normal data distributions. This paper explores the application of Generative Adversarial Networks (GANs) in fraud…

Machine Learning · Computer Science 2024-02-16 Mengran Zhu , Yulu Gong , Yafei Xiang , Hanyi Yu , Shuning Huo

Credit card fraud detection (CCFD) is a critical application of Machine Learning (ML) in the financial sector, where accurately identifying fraudulent transactions is essential for mitigating financial losses. ML models have demonstrated…

Cryptography and Security · Computer Science 2025-08-21 Jan Lum Fok , Qingwen Zeng , Shiping Chen , Oscar Fawkes , Huaming Chen

Fraud detection is extremely critical for e-commerce business. It is the intent of the companies to detect and prevent fraud as early as possible. Existing fraud detection methods try to identify unexpected dense subgraphs and treat related…

Machine Learning · Computer Science 2020-11-09 Yuxiang Ren , Hao Zhu , Jiawei Zhang , Peng Dai , Liefeng Bo

We present, GEM, the first heterogeneous graph neural network approach for detecting malicious accounts at Alipay, one of the world's leading mobile cashless payment platform. Our approach, inspired from a connected subgraph approach,…

Machine Learning · Computer Science 2020-02-28 Ziqi Liu , Chaochao Chen , Xinxing Yang , Jun Zhou , Xiaolong Li , Le Song

The automatic detection of frauds in banking transactions has been recently studied as a way to help the analysts finding fraudulent operations. Due to the availability of a human feedback, this task has been studied in the framework of…

Machine Learning · Computer Science 2020-04-24 Christelle Marfaing , Alexandre Garcia

Real-time fraud detection is a challenge for most financial and electronic commercial platforms. To identify fraudulent communities, Grab, one of the largest technology companies in Southeast Asia, forms a graph from a set of transactions…

Databases · Computer Science 2022-11-15 Jiaxin Jiang , Yuan Li , Bingsheng He , Bryan Hooi , Jia Chen , Johan Kok Zhi Kang

Federated learning was proposed with an intriguing vision of achieving collaborative machine learning among numerous clients without uploading their private data to a cloud server. However, the conventional framework requires each client to…

Machine Learning · Computer Science 2019-11-12 Chaoyue Niu , Fan Wu , Shaojie Tang , Lifeng Hua , Rongfei Jia , Chengfei Lv , Zhihua Wu , Guihai Chen

Federated learning enables clients to collaboratively learn a shared global model without sharing their local training data with a cloud server. However, malicious clients can corrupt the global model to predict incorrect labels for testing…

Cryptography and Security · Computer Science 2021-10-28 Xiaoyu Cao , Jinyuan Jia , Neil Zhenqiang Gong

eCommerce transaction frauds keep changing rapidly. This is the major issue that prevents eCommerce merchants having a robust machine learning model for fraudulent transactions detection. The root cause of this problem is that rapid…

Applications · Statistics 2018-10-11 Huiying Mao , Yung-wen Liu , Yuting Jia , Jay Nanduri

Various problems of any credit card fraud detection based on machine learning come from the imbalanced aspect of transaction datasets. Indeed, the number of frauds compared to the number of regular transactions is tiny and has been shown to…

Machine Learning · Computer Science 2022-06-28 François de la Bourdonnaye , Fabrice Daniel

Machine learning models have widely been used in fraud detection systems. Most of the research and development efforts have been concentrated on improving the performance of the fraud scoring models. Yet, the downstream fraud alert systems…

Machine Learning · Computer Science 2020-10-22 Hongda Shen , Eren Kurshan

In this paper, we present an automated feature engineering based approach to dramatically reduce false positives in fraud prediction. False positives plague the fraud prediction industry. It is estimated that only 1 in 5 declared as fraud…

Artificial Intelligence · Computer Science 2017-10-30 Roy Wedge , James Max Kanter , Santiago Moral Rubio , Sergio Iglesias Perez , Kalyan Veeramachaneni

The report demonstrates the benefits (in terms of improved claims loss modeling) of harnessing the value of Federated Learning (FL) to learn a single model across multiple insurance industry datasets without requiring the datasets…

Machine Learning · Computer Science 2024-02-26 Panyi Dong , Zhiyu Quan , Brandon Edwards , Shih-han Wang , Runhuan Feng , Tianyang Wang , Patrick Foley , Prashant Shah

Despite the fact that cryptocurrencies themselves have experienced an astonishing rate of adoption over the last decade, cryptocurrency fraud detection is a heavily under-researched problem area. Of all fraudulent activity regarding…

Machine Learning · Computer Science 2022-05-11 Viswanath Chadalapaka , Kyle Chang , Gireesh Mahajan , Anuj Vasil

Money laundering is a major global problem, enabling criminal organisations to hide their ill-gotten gains and to finance further operations. Prevention of money laundering is seen as a high priority by many governments, however detection…

Social and Information Networks · Computer Science 2016-08-03 David Savage , Qingmai Wang , Pauline Chou , Xiuzhen Zhang , Xinghuo Yu

The fraud/uncollectible debt problem in the telecommunications industry presents two technical challenges: the detection and the treatment of the account given the detection. In this paper, we focus on the first problem of detection using…

Artificial Intelligence · Computer Science 2013-02-21 Kazuo J. Ezawa , Til Schuermann