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Consider an application sold on an on-line platform, with the app paying a commission fee and, henceforth, offered for sale on the platform. The ability to sell the application depends on its customer ranking. Therefore, developers may have…

Theoretical Economics · Economics 2019-05-23 Lihi Dery , Dror Hermel , Artyom Jelnov

Auditing fairness of decision-makers is now in high demand. To respond to this social demand, several fairness auditing tools have been developed. The focus of this study is to raise an awareness of the risk of malicious decision-makers who…

Machine Learning · Statistics 2019-12-02 Kazuto Fukuchi , Satoshi Hara , Takanori Maehara

The proliferation of fake news and its propagation on social media has become a major concern due to its ability to create devastating impacts. Different machine learning approaches have been suggested to detect fake news. However, most of…

Computation and Language · Computer Science 2021-04-14 Junaed Younus Khan , Md. Tawkat Islam Khondaker , Sadia Afroz , Gias Uddin , Anindya Iqbal

Threat actors continue to exploit geopolitical and global public events launch aggressive campaigns propagating disinformation over the Internet. In this paper we extend our prior research in detecting disinformation using psycholinguistic…

Cryptography and Security · Computer Science 2024-05-30 Alex V Mbaziira , Maha F Sabir

With growing credit card transaction volumes, the fraud percentages are also rising, including overhead costs for institutions to combat and compensate victims. The use of machine learning into the financial sector permits more effective…

Machine Learning · Computer Science 2022-08-26 Gayan K. Kulatilleke , Sugandika Samarakoon

Substandard and falsified pharmaceuticals, prevalent in low- and middle-income countries, substantially increase levels of morbidity, mortality and drug resistance. Regulatory agencies combat this problem using post-market surveillance by…

Applications · Statistics 2025-02-04 Eugene Wickett , Matthew Plumlee , Karen Smilowitz , Souly Phanouvong , Victor Pribluda

Labeling bias arises during data collection due to resource limitations or unconscious bias, leading to unequal label error rates across subgroups or misrepresentation of subgroup prevalence. Most fairness constraints assume training labels…

Machine Learning · Computer Science 2026-02-24 Frida Jørgensen , Nina Weng , Siavash Bigdeli

Recent studies in recommender systems have managed to achieve significantly improved performance by leveraging reviews for rating prediction. However, despite being extensively studied, these methods still suffer from some limitations.…

Information Retrieval · Computer Science 2021-08-19 Kai Zhang , Hao Qian , Qi Liu , Zhiqiang Zhang , Jun Zhou , Jianhui Ma , Enhong Chen

In response to the growing threat of deepfake technology, we introduce BENet, a Cross-Domain Robust Bias Expansion Network. BENet enhances the detection of fake faces by addressing limitations in current detectors related to variations…

Computer Vision and Pattern Recognition · Computer Science 2024-12-11 Weihua Liu , Jianhua Qiu , Said Boumaraf , Chaochao lin , Pan liyuan , Lin Li , Mohammed Bennamoun , Naoufel Werghi

Standardized datasets and benchmarks have spurred innovations in computer vision, natural language processing, multi-modal and tabular settings. We note that, as compared to other well researched fields, fraud detection has unique…

Machine Learning · Computer Science 2023-09-26 Prince Grover , Julia Xu , Justin Tittelfitz , Anqi Cheng , Zheng Li , Jakub Zablocki , Jianbo Liu , Hao Zhou

In e-commerce, online retailers are usually suffering from professional malicious users (PMUs), who utilize negative reviews and low ratings to their consumed products on purpose to threaten the retailers for illegal profits. Specifically,…

Information Retrieval · Computer Science 2022-05-20 Yuanbo Xu , Yongjian Yang , En Wang , Fuzhen Zhuang , Hui Xiong

This study was motivated by the problem of identifying fake documents on the Internet. To explore possible solutions to this problem we introduce a model of a network community in which members submit documents with verifiable content.…

Classical Analysis and ODEs · Mathematics 2018-12-20 Andrei Olifer

In the faceless world of the Internet,online fraud is one of the greatest reasons of loss for web merchants.Advanced solutions are needed to protect e businesses from the constant problems of fraud.Many popular fraud detection algorithms…

Networking and Internet Architecture · Computer Science 2010-06-15 P. Srinivasulu , J. Ranga Rao , I. Ramesh Babu

Effective peer assessment requires students to be attentive to the deficiencies in the work they rate. Thus, their reviews should identify problems. But what ways are there to check that they do? We attempt to automate the process of…

This work presents the BanglishRev Dataset, the largest e-commerce product review dataset to date for reviews written in Bengali, English, a mixture of both and Banglish, Bengali words written with English alphabets. The dataset comprises…

Computation and Language · Computer Science 2024-12-19 Mohammad Nazmush Shamael , Sabila Nawshin , Swakkhar Shatabda , Salekul Islam

Card transaction fraud is a growing problem affecting card holders worldwide. Financial institutions increasingly rely upon data-driven methods for developing fraud detection systems, which are able to automatically detect and block…

Applications · Statistics 2020-05-07 Sebastiaan Höppner , Bart Baesens , Wouter Verbeke , Tim Verdonck

Online social networks serve as major platforms for disseminating both real and fake news. Many users--intentionally or unintentionally--spread harmful content, misinformation, and rumors in domains such as politics and business.…

Social and Information Networks · Computer Science 2025-10-17 Mohammad Moradi , Mostafa Haghir Chehreghani

Phishing, a continuously growing cyber threat, aims to obtain innocent users' credentials by deceiving them via presenting fake web pages which mimic their legitimate targets. To date, various attempts have been carried out in order to…

Cryptography and Security · Computer Science 2019-05-21 Firat Coskun Dalgic , Ahmet Selman Bozkir , Murat Aydos

Credit card is one of the most extensive methods of instalment for both online and offline mode of payment for electronic transactions in recent times. credit cards invention has provided significant ease in electronic transactions.…

Machine Learning · Computer Science 2024-09-23 Sourav Verma , Joydip Dhar

The rise of large language models (LLMs) has enabled the generation of highly persuasive spam reviews that closely mimic human writing. These reviews pose significant challenges for existing detection systems and threaten the credibility of…

Computation and Language · Computer Science 2026-04-21 Xin Liu , Rongwu Xu , Xinyi Jia , Jason Liao , Jiao Sun , Ling Huang , Wei Xu