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In the field of fraud detection, the availability of comprehensive and privacy-compliant datasets is crucial for advancing machine learning research and developing effective anti-fraud systems. Traditional datasets often focus on…

机器学习 · 计算机科学 2024-04-24 Phoebe Jing , Yijing Gao , Xianlong Zeng

Online reviews significantly impact consumers' decision-making process and firms' economic outcomes and are widely seen as crucial to the success of online markets. Firms, therefore, have a strong incentive to manipulate ratings using fake…

社会与信息网络 · 计算机科学 2024-10-24 Sherry He , Brett Hollenbeck , Gijs Overgoor , Davide Proserpio , Ali Tosyali

False information can be created and spread easily through the web and social media platforms, resulting in widespread real-world impact. Characterizing how false information proliferates on social platforms and why it succeeds in deceiving…

社会与信息网络 · 计算机科学 2018-04-24 Srijan Kumar , Neil Shah

We propose multi-agent reinforcement learning as a new method for modeling fake news in social networks. This method allows us to model human behavior in social networks both in unaccustomed populations and in populations that have adapted…

人工智能 · 计算机科学 2025-10-14 Christoph Aymanns , Jakob Foerster , Co-Pierre Georg , Matthias Weber

The application of machine learning to support the processing of large datasets holds promise in many industries, including financial services. However, practical issues for the full adoption of machine learning remain with the focus being…

机器学习 · 计算机科学 2021-05-14 Ismini Psychoula , Andreas Gutmann , Pradip Mainali , S. H. Lee , Paul Dunphy , Fabien A. P. Petitcolas

Social media platforms like Twitter, Facebook, and Instagram have facilitated the spread of misinformation, necessitating automated detection systems. This systematic review evaluates 36 studies that apply machine learning (ML) and deep…

机器学习 · 计算机科学 2025-06-24 Yunchong Liu , Xiaorui Shen , Yeyubei Zhang , Zhongyan Wang , Yexin Tian , Jianglai Dai , Yuchen Cao

The spread of misinformation poses a threat to the social media ecosystem. Effective countermeasures to mitigate this threat require that social media platforms be able to accurately detect low-credibility accounts even before the content…

社会与信息网络 · 计算机科学 2024-01-26 Bao Tran Truong , Oliver Melbourne Allen , Filippo Menczer

Since the emergence of joint-stock companies, financial fraud by listed firms has repeatedly undermined capital markets. Fraud is difficult to detect because of covert tactics and the high labor and time costs of audits. Traditional…

机器学习 · 计算机科学 2025-12-11 Xiao Li

Although surveillance and sensor networks play a key role in Internet of Things, sensor nodes are usually vulnerable to tampering due to their widespread locations. In this letter we consider data falsification attacks where an smart…

信号处理 · 电气工程与系统科学 2017-10-19 Fernando Rosas , Kwang-Cheng Chen

Fake news, misinformation, and unverifiable facts on social media platforms propagate disharmony and affect society, especially when dealing with an epidemic like COVID-19. The task of Fake News Detection aims to tackle the effects of such…

计算与语言 · 计算机科学 2021-12-14 Mrinal Rawat , Diptesh Kanojia

Most fact checking models for automatic fake news detection are based on reasoning: given a claim with associated evidence, the models aim to estimate the claim veracity based on the supporting or refuting content within the evidence. When…

计算与语言 · 计算机科学 2021-05-18 Casper Hansen , Christian Hansen , Lucas Chaves Lima

In the past few years, the research community has dedicated growing interest to the issue of false news circulating on social networks. The widespread attention on detecting and characterizing false news has been motivated by considerable…

社会与信息网络 · 计算机科学 2020-01-29 Francesco Pierri , Stefano Ceri

Many online platforms have deployed anti-fraud systems to detect and prevent fraudulent activities. However, there is usually a gap between the time that a user commits a fraudulent action and the time that the user is suspended by the…

机器学习 · 计算机科学 2018-11-15 Panpan Zheng , Shuhan Yuan , Xintao Wu

Card payment fraud is a serious problem, and a roadblock for an optimally functioning digital economy, with cards (Debits and Credit) being the most popular digital payment method across the globe. Despite the occurrence of fraud could be…

密码学与安全 · 计算机科学 2020-12-01 Bemali Wickramanayake , Dakshi Kapugama Geeganage , Chun Ouyang , Yue Xu

Neural networks are increasingly deployed in real-world safety-critical domains such as autonomous driving, aircraft collision avoidance, and malware detection. However, these networks have been shown to often mispredict on inputs with…

机器学习 · 计算机科学 2018-11-09 Shiqi Wang , Kexin Pei , Justin Whitehouse , Junfeng Yang , Suman Jana

Rumors are rampant in the era of social media. Conversation structures provide valuable clues to differentiate between real and fake claims. However, existing rumor detection methods are either limited to the strict relation of user…

计算与语言 · 计算机科学 2021-11-16 Hongzhan Lin , Jing Ma , Mingfei Cheng , Zhiwei Yang , Liangliang Chen , Guang Chen

We argue that insurance can act as an analogon for the social situatedness of machine learning systems, hence allowing machine learning scholars to take insights from the rich and interdisciplinary insurance literature. Tracing the…

机器学习 · 计算机科学 2024-01-24 Christian Fröhlich , Robert C. Williamson

Although procurement fraud is always a critical problem in almost every free market, audit departments still have a strong reliance on reporting from informed sources when detecting them. With our generous cooperator, SF Express, sharing…

机器学习 · 计算机科学 2023-04-21 Jin Bai , Tong Qiu

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.…

机器学习 · 计算机科学 2024-08-26 João Lucas Martins , João Bravo , Ana Sofia Gomes , Carlos Soares , Pedro Bizarro

The unmoderated nature of social media enables the diffusion of hoaxes, which in turn jeopardises the credibility of information gathered from social media platforms. Existing research on automated detection of hoaxes has the limitation of…

计算与语言 · 计算机科学 2020-06-16 Arkaitz Zubiaga , Aiqi Jiang