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Social media platforms have become the hubs for various user interactions covering a wide range of needs, including technical support and services related to brands, products, or user accounts. Unfortunately, there has been a recent surge…

密码学与安全 · 计算机科学 2024-12-20 Bhupendra Acharya , Dominik Sautter , Muhammad Saad , Thorsten Holz

Data extracted from social networks like Twitter are increasingly being used to build applications and services that mine and summarize public reactions to events, such as traffic monitoring platforms, identification of epidemic outbreaks,…

社会与信息网络 · 计算机科学 2014-05-21 Carlos A. Freitas , Fabrício Benevenuto , Saptarshi Ghosh , Adriano Veloso

Face Recognition (FR) systems are being used in a variety of applications, including road crossings, banking, and mobile banking. The widespread use of FR systems has raised concerns about the safety of face biometrics against spoofing…

计算机视觉与模式识别 · 计算机科学 2022-05-24 Soham S. Sarpotdar

Gaining the trust of customers and providing them empathy are very critical in the financial domain. Frequent occurrence of fraudulent activities affects these two factors. Hence, financial organizations and banks must take utmost care to…

机器学习 · 计算机科学 2022-11-28 Yelleti Vivek , Vadlamani Ravi , Abhay Anand Mane , Laveti Ramesh Naidu

Social media platforms have become a hub for political activities and discussions, democratizing participation in these endeavors. However, they have also become an incubator for manipulation campaigns, like information operations (IOs).…

计算机与社会 · 计算机科学 2024-11-21 Ozgur Can Seckin , Manita Pote , Alexander Nwala , Lake Yin , Luca Luceri , Alessandro Flammini , Filippo Menczer

Fake news detection algorithms apply machine learning to various news attributes and their relationships. However, their success is usually evaluated based on how the algorithm performs on a static benchmark, independent of real users. On…

人机交互 · 计算机科学 2023-04-18 Bruno Tafur , Advait Sarkar

How can web services that depend on user generated content discern fake social engagement activities by spammers from legitimate ones? In this paper, we focus on the social site of YouTube and the problem of identifying bad actors posting…

社会与信息网络 · 计算机科学 2016-01-21 Yixuan Li , Oscar Martinez , Xing Chen , Yi Li , John Hopcroft

The fast and continuous growth in number and quality of deepfake videos calls for the development of reliable detection systems capable of automatically warning users on social media and on the Internet about the potential untruthfulness of…

计算机视觉与模式识别 · 计算机科学 2020-11-17 Luca Bondi , Edoardo Daniele Cannas , Paolo Bestagini , Stefano Tubaro

Recent advances in AI technology have made the forgery of digital images and videos easier, and it has become significantly more difficult to identify such forgeries. These forgeries, if disseminated with malicious intent, can negatively…

计算机视觉与模式识别 · 计算机科学 2019-12-30 Chia-Mu Yu , Ching-Tang Chang , Yen-Wu Ti

Illicit drug trafficking via social media sites such as Instagram has become a severe problem, thus drawing a great deal of attention from law enforcement and public health agencies. How to identify illicit drug dealers from social media…

机器学习 · 计算机科学 2021-08-24 Chuanbo Hu , Minglei Yin , Bin Liu , Xin Li , Yanfang Ye

Social media users and inauthentic accounts, such as bots, may coordinate in promoting their topics. Such topics may give the impression that they are organically popular among the public, even though they are astroturfing campaigns that…

社会与信息网络 · 计算机科学 2025-03-31 Atul Anand Gopalakrishnan , Jakir Hossain , Tugrulcan Elmas , Ahmet Erdem Sariyuce

An essential topic in online social network security is how to accurately detect bot accounts and relieve their harmful impacts (e.g., misinformation, rumor, and spam) on genuine users. Based on a real-world data set, we construct…

社会与信息网络 · 计算机科学 2023-04-19 Jun Wu , Xuesong Ye , Chengjie Mou

Online Social Networks (OSNs) are a cornerstone in modern society, serving as platforms for diverse content consumption by millions of users each day. However, the challenge of ensuring the accuracy of information shared on these platforms…

社会与信息网络 · 计算机科学 2025-06-26 Edoardo Di Paolo , Fabio De Gaspari , Angelo Spognardi

Social media platforms like Facebook, Twitter, and Instagram have enabled connection and communication on a large scale. It has revolutionized the rate at which information is shared and enhanced its reach. However, another side of the coin…

机器学习 · 计算机科学 2021-04-13 Apurva Wani , Isha Joshi , Snehal Khandve , Vedangi Wagh , Raviraj Joshi

Credit card fraud is an ongoing problem for almost all industries in the world, and it raises millions of dollars to the global economy each year. Therefore, there is a number of research either completed or proceeding in order to detect…

机器学习 · 计算机科学 2020-07-30 Yusuf Yazici

The proliferation of fake news on social media has opened up new directions of research for timely identification and containment of fake news, and mitigation of its widespread impact on public opinion. While much of the earlier research…

机器学习 · 计算机科学 2019-01-23 Karishma Sharma , Feng Qian , He Jiang , Natali Ruchansky , Ming Zhang , Yan Liu

This study addresses the critical challenge of detecting DeepFake tweets by leveraging advanced natural language processing (NLP) techniques to distinguish between genuine and AI-generated texts. Given the increasing prevalence of…

计算与语言 · 计算机科学 2024-06-25 Adam Frej , Adrian Kaminski , Piotr Marciniak , Szymon Szmajdzinski , Soveatin Kuntur , Anna Wroblewska

In the past decades, the excessive use of the last-generation GAN (Generative Adversarial Networks) models in computer vision has enabled the creation of artificial face images that are visually indistinguishable from genuine ones. These…

密码学与安全 · 计算机科学 2022-03-04 Ehsan Nowroozi , Mauro Conti , Yassine Mekdad

Facial forgery methods such as deepfakes can be misused for identity manipulation and spreading misinformation. They have evolved alongside advancements in generative AI, leading to new and more sophisticated forgery techniques that diverge…

计算机视觉与模式识别 · 计算机科学 2026-03-30 Nadarasar Bahavan , Sachith Seneviratne , Sanjay Saha , Ken Chen , Sanka Rasnayaka , Saman Halgamuge

In many online platforms, customers' decisions are substantially influenced by product rankings as most customers only examine a few top-ranked products. Concurrently, such platforms also use the same data corresponding to customers'…

机器学习 · 计算机科学 2020-09-14 Negin Golrezaei , Vahideh Manshadi , Jon Schneider , Shreyas Sekar