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Blockchain systems and cryptocurrencies have exploded in popularity over the past decade, and with this growing user base, the number of cryptocurrency scams has also surged. Given the graphical structure of blockchain networks and the…

密码学与安全 · 计算机科学 2023-01-06 Jared Gridley , Oshani Seneviratne

Blockchain Business applications and cryptocurrencies such as enable secure, decentralized value transfer, yet their pseudonymous nature creates opportunities for illicit activity, challenging regulators and exchanges in anti money…

机器学习 · 计算机科学 2026-01-09 M. Z. Haider , Tayyaba Noreen , M. Salman

Anomaly detection is defined as the problem of finding data points that do not follow the patterns of the majority. Among the various proposed methods for solving this problem, classification-based methods, including one-class Support…

最优化与控制 · 数学 2023-12-05 Amir Hossein Noormohammadia , Seyed Ali MirHassania , Farnaz Hooshmand Khaligh

Intrusion detection for computer network systems becomes one of the most critical tasks for network administrators today. It has an important role for organizations, governments and our society due to its valuable resources on computer…

机器学习 · 计算机科学 2017-03-30 Loic Bontemps , Van Loi Cao , James McDermott , Nhien-An Le-Khac

In recommendation systems, items are likely to be exposed to various users and we would like to learn about the familiarity of a new user with an existing item. This can be formulated as an anomaly detection (AD) problem distinguishing…

机器学习 · 计算机科学 2022-09-22 Ke Bai , Aonan Zhang , Zhizhong Li , Ricardo Heano , Chong Wang , Lawrence Carin

A new anomaly detection method called kernel outlier detection (KOD) is proposed. It is designed to address challenges of outlier detection in high-dimensional settings. The aim is to overcome limitations of existing methods, such as…

机器学习 · 计算机科学 2025-07-01 Can Hakan Dağıdır , Mia Hubert , Peter J. Rousseeuw

This paper studies the problem of detecting anomalous graphs using a machine learning model trained on only normal graphs, which has many applications in molecule, biology, and social network data analysis. We present a self-discriminative…

机器学习 · 计算机科学 2023-10-11 Jinyu Cai , Yunhe Zhang , Jicong Fan

Detecting anomalies in time series data is important in a variety of fields, including system monitoring, healthcare, and cybersecurity. While the abundance of available methods makes it difficult to choose the most appropriate method for a…

机器学习 · 计算机科学 2023-02-03 Ferdinand Rewicki , Joachim Denzler , Julia Niebling

Learning to detect real-world anomalous events using video-level annotations is a difficult task mainly because of the noise present in labels. An anomalous labelled video may actually contain anomaly only in a short duration while the rest…

计算机视觉与模式识别 · 计算机科学 2021-05-03 Muhammad Zaigham Zaheer , Jin-ha Lee , Marcella Astrid , Arif Mahmood , Seung-Ik Lee

As networks continue to grow in complexity and scale, detecting anomalies has become increasingly challenging, particularly in diverse and geographically dispersed environments. Traditional approaches often struggle with managing the…

分布式、并行与集群计算 · 计算机科学 2025-03-11 William Marfo , Enrique A. Rico , Deepak K. Tosh , Shirley V. Moore

Anomaly detection for time-series data has been an important research field for a long time. Seminal work on anomaly detection methods has been focussing on statistical approaches. In recent years an increasing number of machine learning…

机器学习 · 计算机科学 2020-04-02 Mohammad Braei , Sebastian Wagner

Machine learning has helped advance the field of anomaly detection by incorporating classifiers and autoencoders to decipher between normal and anomalous behavior. Additionally, federated learning has provided a way for a global model to be…

In modern world the importance of cybersecurity of various systems is increasing from year to year. The number of information security events generated by information security tools grows up with the development of the IT infrastructure. At…

密码学与安全 · 计算机科学 2025-06-17 Evgeniy Eremin

Over the past few years, there has been a growth in activity, public knowledge, and awareness of cryptocurrencies and related blockchain technology. As the industry has grown, there has also been an increase in scams looking to steal…

密码学与安全 · 计算机科学 2020-06-01 R. Phillips , H. Wilder

Anomaly detection is a longstanding and active research area that has many applications in domains such as finance, security, and manufacturing. However, the efficiency and performance of anomaly detection algorithms are challenged by the…

机器学习 · 计算机科学 2025-04-16 Yang Cao , Haolong Xiang , Hang Zhang , Ye Zhu , Kai Ming Ting

A new cybersecurity attack,where an adversary illicitly runs crypto-mining software over the devices of unaware users, is emerging in both the literature and in the wild . This attack, known as cryptojacking, has proved to be very effective…

密码学与安全 · 计算机科学 2022-08-09 Maurantonio Caprolu , Simone Raponi , Gabriele Oligeri , Roberto Di Pietro

Cryptocurrencies aim to replicate physical cash in the digital realm while removing centralized and trusted intermediaries. Decentralization is achieved by the blockchain, a permanent public ledger that contains a record of every…

密码学与安全 · 计算机科学 2024-06-04 Domokos Miklós Kelen , István András Seres

Bitcoin cryptocurrency system enables users to transact securely and pseudo-anonymously by using an arbitrary number of aliases (Bitcoin addresses). Cybercriminals exploit these characteristics to commit immutable and presumably untraceable…

密码学与安全 · 计算机科学 2018-11-27 Mauro Conti , Ankit Gangwal , Sushmita Ruj

Anomaly detection in video streams is a challenging problem because of the scarcity of abnormal events and the difficulty of accurately annotating them. To alleviate these issues, unsupervised learning-based prediction methods have been…

计算机视觉与模式识别 · 计算机科学 2021-10-28 Youngsaeng Jin , Jonghwan Hong , David Han , Hanseok Ko

Increasingly growing Cryptocurrency markets have become a hive for scammers to run pump and dump schemes which is considered as an anomalous activity in exchange markets. Anomaly detection in time series is challenging since existing…

人工智能 · 计算机科学 2020-03-17 Hadi Mansourifar , Lin Chen , Weidong Shi