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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…

Machine Learning · Computer Science 2021-10-06 Joana Lorenz , Maria Inês Silva , David Aparício , João Tiago Ascensão , Pedro Bizarro

Anti-money laundering (AML) systems are important for protecting the global economy. However, conventional rule-based methods rely on domain knowledge, leading to suboptimal accuracy and a lack of scalability. Graph neural networks (GNNs)…

Machine Learning · Computer Science 2026-03-26 Chung-Hoo Poon , James Kwok , Calvin Chow , Jang-Hyeon Choi

Anti-money laundering (AML) regulations play a critical role in safeguarding financial systems, but bear high costs for institutions and drive financial exclusion for those on the socioeconomic and international margins. The advent of…

Social and Information Networks · Computer Science 2019-08-08 Mark Weber , Giacomo Domeniconi , Jie Chen , Daniel Karl I. Weidele , Claudio Bellei , Tom Robinson , Charles E. Leiserson

Today, money laundering poses a serious threat not only to financial institutions but also to the nation. This criminal activity is becoming more and more sophisticated and seems to have moved from the clichy of drug trafficking to…

Databases · Computer Science 2016-09-06 Nhien-An Le-Khac , Sammer Markos , Tahar Kechadi

Money laundering (ML) is the behavior to conceal the source of money achieved by illegitimate activities, and always be a fast process involving frequent and chained transactions. How can we detect ML and fraudulent activity in large scale…

Computers and Society · Computer Science 2021-03-24 Xiaobing Sun , Jiabao Zhang , Qiming Zhao , Shenghua Liu , Jinglei Chen , Ruoyu Zhuang , Huawei Shen , Xueqi Cheng

The rise of digital ecosystems has exposed the financial sector to evolving abuse and criminal tactics that share operational knowledge and techniques both within and across different environments (fiat-based, crypto-assets, etc.).…

Machine Learning · Computer Science 2025-09-17 Francesco Zola , Jon Ander Medina , Andrea Venturi , Amaia Gil , Raul Orduna

Given a stream of money transactions between accounts in a bank, how can we accurately detect money laundering agent accounts and suspected behaviors in real-time? Money laundering agents try to hide the origin of illegally obtained money…

Social and Information Networks · Computer Science 2022-01-26 Xiaobing Sun , Wenjie Feng , Shenghua Liu , Yuyang Xie , Siddharth Bhatia , Bryan Hooi , Wenhan Wang , Xueqi Cheng

Today, money laundering (ML) poses a serious threat not only to financial institutions but also to the nations. This criminal activity is becoming more and more sophisticated and seems to have moved from the clichy of drug trafficking to…

Databases · Computer Science 2017-03-30 Nhien-An Le-Khac , Sammer Markos , Michael O'Neill , Anthony Brabazon , Tahar Kechadi

Financial fraud detection in transaction networks involves modeling sparse anomalies, dynamic patterns, and severe class imbalance in the presence of temporal drift in the data. In real-world transaction systems, a suspicious transaction is…

Machine Learning · Computer Science 2026-03-17 Yiming Lei , Qiannan Shen , Junhao Song

Anti-money laundering (AML) transaction monitoring generates large volumes of alerts that must be rapidly triaged by investigators under strict audit and governance constraints. While large language models (LLMs) can summarize heterogeneous…

Artificial Intelligence · Computer Science 2026-04-23 Dorothy Torres , Wei Cheng , Ke Hu

Combating money laundering has become increasingly complex with the rise of cybercrime and digitalization of financial transactions. Graph-based machine learning techniques have emerged as promising tools for Anti-Money Laundering (AML)…

Cryptography and Security · Computer Science 2024-11-12 Fabrianne Effendi , Anupam Chattopadhyay

The rise of financial crime that has been observed in recent years has created an increasing concern around the topic and many people, organizations and governments are more and more frequently trying to combat it. Despite the increase of…

With the deep integration of the travel and energy industries, cross-industry supply chain finance has gradually become a high-risk field of hidden money laundering incidents. For this reason, this work proposes a graph-driven…

Machine Learning · Computer Science 2026-05-20 Rong Liu , Xiaojun Xiao , Zhanqing Su

The lack of accessible transactional data significantly hinders machine learning research for Anti-Money Laundering (AML). Privacy and legal concerns prevent the sharing of real financial data, while existing synthetic generators focus on…

Machine Learning · Computer Science 2026-03-03 Montijn van den Beukel , Jože Martin Rožanec , Ana-Lucia Varbanescu

This paper explores anomaly detection through temporal network analysis. Unlike many conventional methods, relying on rule-based algorithms or general machine learning approaches, our methodology leverages the evolving structure and…

Fraudulent activities on digital banking services are becoming more intricate by the day, challenging existing defenses. While older rule driven methods struggle to keep pace, even precision focused algorithms fall short when new scams are…

Cryptography and Security · Computer Science 2026-01-21 Karthikeyan V. R. , Premnath S. , Kavinraaj S. , J. Sangeetha

Cryptocurrency transaction fraud detection faces the dual challenges of increasingly complex transaction patterns and severe class imbalance. Traditional methods rely on manual feature engineering and struggle to capture temporal and…

Machine Learning · Computer Science 2025-06-27 Zhi Zheng , Bochuan Zhou , Yuping Song

Transaction graphs, which represent financial and trade transactions between entities such as bank accounts and companies, can reveal patterns indicative of financial crimes like money laundering and fraud. However, effective detection of…

Machine Learning · Computer Science 2025-03-24 Steve Gounoue , Ashutosh Sao , Simon Gottschalk

Many business applications involve adversarial relationships in which both sides adapt their strategies to optimize their opposing benefits. One of the key characteristics of these applications is the wide range of strategies that an…

Artificial Intelligence · Computer Science 2020-11-04 Daniel Borrajo , Manuela Veloso , Sameena Shah

In shaping the Internet of Money, the application of blockchain and distributed ledger technologies (DLTs) to the financial sector triggered regulatory concerns. Notably, while the user anonymity enabled in this field may safeguard privacy…

Cryptography and Security · Computer Science 2023-03-21 Nadia Pocher , Mirko Zichichi , Fabio Merizzi , Muhammad Zohaib Shafiq , Stefano Ferretti