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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

Credit card fraud is an ongoing problem for almost all industries in the world, and it raises millions of dollars to the global economy each year. Therefore, there is a number of research either completed or proceeding in order to detect…

Machine Learning · Computer Science 2020-07-30 Yusuf Yazici

Feature embedding learning and feature interaction modeling are two crucial components of deep models for Click-Through Rate (CTR) prediction. Most existing deep CTR models suffer from the following three problems. First, feature…

Information Retrieval · Computer Science 2021-12-14 Chenxu Zhu , Bo Chen , Weinan Zhang , Jincai Lai , Ruiming Tang , Xiuqiang He , Zhenguo Li , Yong Yu

Electronic payment platforms are estimated to process billions oftransactions daily, with the cumulative value of these transactionspotentially reaching into the trillions. Even a minor error within thishigh-volume environment could…

Cryptography and Security · Computer Science 2025-07-04 Mao Luo , Zhi Wang , Yiwen Huang , Qingyun Zhang , Zhouxing Su , Zhipeng Lv , Wen Hu , Jianguo Li

Understanding output variance is critical in modeling nonlinear dynamic systems, as it reflects the system's sensitivity to input variations and feature interactions. This work presents a methodology for dynamically determining relevance…

Machine Learning · Computer Science 2024-12-31 Vahid MohammadZadeh Eivaghi , Mahdi Aliyari Shoorehdeli

Machine learning and data mining techniques have been used extensively in order to detect credit card frauds. However purchase behaviour and fraudster strategies may change over time. This phenomenon is named dataset shift or concept drift…

The burgeoning e-Commerce sector requires advanced solutions for the detection of transaction fraud. With an increasing risk of financial information theft and account takeovers, deep learning methods have become integral to the embedding…

Machine Learning · Computer Science 2025-05-19 Bo Qu , Zhurong Wang , Minghao Gu , Daisuke Yagi , Yang Zhao , Yinan Shan , Frank Zahradnik

Financial fraud cases are on the rise even with the current technological advancements. Due to the lack of inter-organization synergy and because of privacy concerns, authentic financial transaction data is rarely available. On the other…

Face forgery detection is essential in combating malicious digital face attacks. Previous methods mainly rely on prior expert knowledge to capture specific forgery clues, such as noise patterns, blending boundaries, and frequency artifacts.…

Computer Vision and Pattern Recognition · Computer Science 2023-04-26 Anwei Luo , Chenqi Kong , Jiwu Huang , Yongjian Hu , Xiangui Kang , Alex C. Kot

The expansion of the electronic commerce, together with an increasing confidence of customers in electronic payments, makes of fraud detection a critical factor. Detecting frauds in (nearly) real time setting demands the design and the…

Distributed, Parallel, and Cluster Computing · Computer Science 2017-09-27 Fabrizio Carcillo , Andrea Dal Pozzolo , Yann-Aël Le Borgne , Olivier Caelen , Yannis Mazzer , Gianluca Bontempi

The rise of deepfake images, especially of well-known personalities, poses a serious threat to the dissemination of authentic information. To tackle this, we present a thorough investigation into how deepfakes are produced and how they can…

Computer Vision and Pattern Recognition · Computer Science 2023-09-06 Haixu Song , Shiyu Huang , Yinpeng Dong , Wei-Wei Tu

In recent years, e-commerce platforms have become one of the most prominent examples of large-scale interaction networks, where understanding influence dynamics among users, products, and digital entities is essential for applications such…

Social and Information Networks · Computer Science 2026-04-28 Shima Esfandiari , Seyed Mostafa Fakhrahmad

In recent years, data mining technologies have been well applied to many domains, including e-commerce. In customer relationship management (CRM), the RFM analysis model is one of the most effective approaches to increase the profits of…

Databases · Computer Science 2024-11-11 Yanxin Zheng , Wensheng Gan , Zefeng Chen , Pinlyu Zhou , Philippe Fournier-Viger

Financial fraud is the cause of multi-billion dollar losses annually. Traditionally, fraud detection systems rely on rules due to their transparency and interpretability, key features in domains where decisions need to be explained.…

Machine Learning · Computer Science 2024-08-26 João Lucas Martins , João Bravo , Ana Sofia Gomes , Carlos Soares , Pedro Bizarro

Fraudulent activities are rapidly evolving, employing increasingly diverse and sophisticated methods that pose serious threats to individuals, organizations, and society. This paper proposes the FIST Framework (Fraud Incident Structured…

Cryptography and Security · Computer Science 2025-06-09 Yu-Chen Dai , Lu-An Chen , Sy-Jye Her , Yu-Xian Jiang

Since the inception of permissionless blockchains with Bitcoin in 2008, it became apparent that their most well-suited use case is related to making the financial system and its advantages available to everyone seamlessly without depending…

General Finance · Quantitative Finance 2023-06-16 Georgios Palaiokrassas , Sandro Scherrers , Iason Ofeidis , Leandros Tassiulas

Split DNNs enable edge devices by offloading intensive computation to a cloud server, but this paradigm exposes privacy vulnerabilities, as the intermediate features can be exploited to reconstruct the private inputs via Feature Inversion…

Computer Vision and Pattern Recognition · Computer Science 2025-11-20 Zhihan Ren , Lijun He , Jiaxi Liang , Xinzhu Fu , Haixia Bi , Fan Li

Modern industrial recommendation systems improve recommendation performance by integrating multimodal representations from pre-trained models into ID-based Click-Through Rate (CTR) prediction frameworks. However, existing approaches…

Information Retrieval · Computer Science 2026-04-17 Alin Fan , Hanqing Li , Sihan Lu , Jingsong Yuan , Jiandong Zhang

Financial fraud is an issue with far reaching consequences in the finance industry, government, corporate sectors, and for ordinary consumers. Increasing dependence on new technologies such as cloud and mobile computing in recent years has…

Cryptography and Security · Computer Science 2015-10-27 J. West , Maumita Bhattacharya , R. Islam

Financial fraud increasingly exploits institutional boundaries: laundering networks distribute transactions across multiple banks because no single institution can observe the full pattern. Federated Learning (FL) enables collaborative…

Cryptography and Security · Computer Science 2026-05-19 Prajwal Panth , Nishant Nigam