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Cheating in online exams has become a prevalent issue over the past decade, especially during the COVID-19 pandemic. To address this issue of academic dishonesty, our "Exam Monitoring System: Detecting Abnormal Behavior in Online…

计算机视觉与模式识别 · 计算机科学 2024-02-20 Dinh An Ngo , Thanh Dat Nguyen , Thi Le Chi Dang , Huy Hoan Le , Ton Bao Ho , Vo Thanh Khang Nguyen , Truong Thanh Hung Nguyen

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…

机器学习 · 统计学 2019-10-11 Samuel Marchal , Sebastian Szyller

Market manipulation is tackled through regulation in traditional markets because of its detrimental effect on market efficiency and many participating financial actors. The recent increase of private retail investors due to new low-fee…

统计金融 · 定量金融 2021-10-11 Jean-Noël Tuccella , Philip Nadler , Ovidiu Şerban

Financial markets are of much interest to researchers due to their dynamic and stochastic nature. With their relations to world populations, global economies and asset valuations, understanding, identifying and forecasting trends and…

统计金融 · 定量金融 2021-08-13 Peter Akioyamen , Yi Zhou Tang , Hussien Hussien

Financial cybercrime prevention is an increasing issue with many organisations and governments. As deep learning models have progressed to identify illicit activity on various financial and social networks, the explainability behind the…

机器学习 · 计算机科学 2023-10-24 Jack Nicholls , Aditya Kuppa , Nhien-An Le-Khac

Machine learning and data mining techniques have been used extensively in order to detect credit card frauds. However, most studies consider credit card transactions as isolated events and not as a sequence of transactions. In this…

Guaranteeing the security of transactional systems is a crucial priority of all institutions that process transactions, in order to protect their businesses against cyberattacks and fraudulent attempts. Adversarial attacks are novel…

密码学与安全 · 计算机科学 2021-01-21 Francesco Cartella , Orlando Anunciacao , Yuki Funabiki , Daisuke Yamaguchi , Toru Akishita , Olivier Elshocht

A large amount of work has been done on the KDD 99 dataset, most of which includes the use of a hybrid anomaly and misuse detection model done in parallel with each other. In order to further classify the intrusions, our approach to network…

密码学与安全 · 计算机科学 2019-10-30 Aditya Pandey , Abhishek Sinha , Aishwarya PS

The continuous growth of the e-commerce industry attracts fraudsters who exploit stolen credit card details. Companies often investigate suspicious transactions in order to retain customer trust and address gaps in their fraud detection…

密码学与安全 · 计算机科学 2025-06-16 Shaun Shuster , Eyal Zaloof , Asaf Shabtai , Rami Puzis

Fraud detection systems (FDS) mainly perform two tasks: (i) real-time detection while the payment is being processed and (ii) posterior detection to block the card retrospectively and avoid further frauds. Since human verification is often…

机器学习 · 计算机科学 2022-04-12 Van Bach Nguyen , Kanishka Ghosh Dastidar , Michael Granitzer , Wissam Siblini

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…

机器学习 · 计算机科学 2025-05-16 Fahad Almalki , Mehedi Masud

Money laundering is a crime that makes it possible to finance other crimes, for this reason, it is important for criminal organizations and their combat is prioritized by nations around the world. The anti-money laundering process has not…

多智能体系统 · 计算机科学 2018-01-04 Claudio Alexandre , João Balsa

Detecting point anomalies in bank account balances is essential for financial institutions, as it enables the identification of potential fraud, operational issues, or other irregularities. Robust statistics is useful for flagging outliers…

机器学习 · 计算机科学 2025-12-02 Federico Maddanu , Tommaso Proietti , Riccardo Crupi

Every year, criminals launder billions of dollars acquired from serious felonies (e.g., terrorism, drug smuggling, or human trafficking) harming countless people and economies. Cryptocurrencies, in particular, have developed as a haven for…

机器学习 · 计算机科学 2021-10-06 Joana Lorenz , Maria Inês Silva , David Aparício , João Tiago Ascensão , Pedro Bizarro

Gaining the trust and confidence of customers is the essence of the growth and success of financial institutions and organizations. Of late, the financial industry is significantly impacted by numerous instances of fraudulent activities.…

机器学习 · 计算机科学 2023-03-10 Yelleti Vivek , Vadlamani Ravi , Abhay Anand Mane , Laveti Ramesh Naidu

The credit cards' fraud transactions detection is the important problem in machine learning field. To detect the credit cards's fraud transactions help reduce the significant loss of the credit cards' holders and the banks. To detect the…

机器学习 · 统计学 2019-09-02 Loc Tran , Tuan Tran , Linh Tran , An Mai

XML transactions are used in many information systems to store data and interact with other systems. Abnormal transactions, the result of either an on-going cyber attack or the actions of a benign user, can potentially harm the interacting…

密码学与安全 · 计算机科学 2013-06-06 Eitan Menahem , Alon Schclar , Lior Rokach , Yuval Elovici

In the insurance industry detecting fraudulent claims is a critical task with a significant financial impact. A common strategy to identify fraudulent claims is looking for inconsistencies in the supporting evidence. However, this is a…

机器学习 · 计算机科学 2023-01-19 Azin Asgarian , Rohit Saha , Daniel Jakubovitz , Julia Peyre

Discriminative pattern mining is a data mining task in which we find patterns that distinguish transactions in the class of interest from those in other classes, and is also called emerging pattern mining or subgroup discovery. One…

数据库 · 计算机科学 2019-08-20 Yoshitaka Kameya

Social media platforms now serve billions of users by providing convenient means of communication, content sharing and even payment between different users. Due to such convenient and anarchic nature, they have also been used rampantly to…

机器学习 · 计算机科学 2020-07-28 Lelin Zhang , Xi Nan , Eva Huang , Sidong Liu