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Credit card fraud has been a persistent issue since the last century, causing significant financial losses to the industry. The most effective way to prevent fraud is by contacting customers to verify suspicious transactions. However, while…

Machine Learning · Computer Science 2026-02-09 Menghao Huo , Kuan Lu , Qiang Zhu , Zhenrui Chen

As online fraud becomes more sophisticated and pervasive, traditional fraud detection methods are struggling to keep pace with the evolving tactics employed by fraudsters. This paper explores the transformative role of machine learning in…

Machine Learning · Computer Science 2024-10-29 Md Kamrul Hasan Chy

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

With the explosive growth of the e-commerce industry, detecting online transaction fraud in real-world applications has become increasingly important to the development of e-commerce platforms. The sequential behavior history of users…

Machine Learning · Computer Science 2022-01-05 Yongchun Zhu , Dongbo Xi , Bowen Song , Fuzhen Zhuang , Shuai Chen , Xi Gu , Qing He

Transaction checkout fraud detection is an essential risk control components for E-commerce marketplaces. In order to leverage graph networks to decrease fraud rate efficiently and guarantee the information flow passed through neighbors…

Machine Learning · Computer Science 2021-10-12 Mingxuan Lu , Zhichao Han , Zitao Zhang , Yang Zhao , Yinan Shan

Structural crack detection is a critical task for public safety as it helps in preventing potential structural failures that could endanger lives. Manual detection by inexperienced personnel can be slow, inconsistent, and prone to human…

Computer Vision and Pattern Recognition · Computer Science 2025-07-04 Subhasis Dasgupta , Jaydip Sen , Tuhina Halder

Technological advancements in cryptocurrency markets have increased accessibility for investors, but concurrently exposed them to the risks of market manipulations. Existing fraud detection mechanisms typically rely on machine learning…

Machine Learning · Computer Science 2026-04-28 Lidia Losavio , Luca Persia , Madan Sathe , Dimosthenis Pasadakis

Online retail, eCommerce, frequently falls victim to fraud conducted by malicious customers (fraudsters) who obtain goods or services through deception. Fraud coordinated by groups of professional fraudsters that place several fraudulent…

Machine Learning · Statistics 2019-10-11 Samuel Marchal , Sebastian Szyller

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…

Machine Learning · Computer Science 2022-06-10 Paul Irofti , Andrei Patrascu , Andra Baltoiu

Global financial crime activity is driving demand for machine learning solutions in fraud prevention. However, prevention systems are commonly serviced to financial institutions in isolation, and few provisions exist for data sharing due to…

Cryptography and Security · Computer Science 2024-01-08 Iker Perez , Jason Wong , Piotr Skalski , Stuart Burrell , Richard Mortier , Derek McAuley , David Sutton

Data economy relies on data-driven systems and complex machine learning applications are fueled by them. Unfortunately, however, machine learning models are exposed to fraudulent activities and adversarial attacks, which threaten their…

Machine Learning · Computer Science 2023-07-06 Danele Lunghi , Alkis Simitsis , Olivier Caelen , Gianluca Bontempi

While transactions with cryptocurrencies such as Ethereum are becoming more prevalent, fraud and other criminal transactions are not uncommon. Graph analysis algorithms and machine learning techniques detect suspicious transactions that…

Machine Learning · Computer Science 2022-07-05 Hiroki Kanezashi , Toyotaro Suzumura , Xin Liu , Takahiro Hirofuchi

Rapid growth of digital transactions has led to a surge in fraudulent activities, challenging traditional detection methods in the financial sector. To tackle this problem, we introduce a specialised federated learning framework that…

Traditional machine learning models often prioritize predictive accuracy, often at the expense of model transparency and interpretability. The lack of transparency makes it difficult for organizations to comply with regulatory requirements…

Machine Learning · Computer Science 2025-05-16 Fahad Almalki , Mehedi Masud

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…

Statistical Finance · Quantitative Finance 2025-10-09 Dawei Cheng , Yao Zou , Sheng Xiang , Changjun Jiang

Online transaction fraud presents substantial challenges to businesses and consumers, risking significant financial losses. Conventional rule-based systems struggle to keep pace with evolving fraud tactics, leading to high false positive…

Risk Management · Quantitative Finance 2024-02-20 Catayoun Azarm , Erman Acar , Mickey van Zeelt

With the deepening of the digitization degree of financial business, financial fraud presents more complex and hidden characteristics, which poses a severe challenge to the risk prevention and control ability of financial institutions. At…

Computational Engineering, Finance, and Science · Computer Science 2024-05-08 Xinye Sha

Blockchain transaction networks are complex, with evolving temporal patterns and inter-node relationships. To detect illicit activities, we propose a hybrid GCN-GRU model that captures both structural and sequential features. Using real…

Machine Learning · Computer Science 2025-09-10 Gyuyeon Na , Minjung Park , Hyeonjeong Cha , Soyoun Kim , Sunyoung Moon , Sua Lee , Jaeyoung Choi , Hyemin Lee , Sangmi Chai

Corporate fraud detection aims to automatically recognize companies that conduct wrongful activities such as fraudulent financial statements or illegal insider trading. Previous learning-based methods fail to effectively integrate rich…

Machine Learning · Computer Science 2025-06-02 Shiqi Wang , Zhibo Zhang , Libing Fang , Cam-Tu Nguyen , Wenzhong Li

At online retail platforms, detecting fraudulent accounts and transactions is crucial to improve customer experience, minimize loss, and avoid unauthorized transactions. Despite the variety of different models for deep learning on graphs,…

Machine Learning · Computer Science 2022-04-25 Susie Xi Rao , Clémence Lanfranchi , Shuai Zhang , Zhichao Han , Zitao Zhang , Wei Min , Mo Cheng , Yinan Shan , Yang Zhao , Ce Zhang
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