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Click-through-rate (CTR) prediction has an essential impact on improving user experience and revenue in e-commerce search. With the development of deep learning, graph-based methods are well exploited to utilize graph structure extracted…

信息检索 · 计算机科学 2024-07-08 Pipi Peng , Yunqing Jia , Ziqiang Zhou , murmurhash , Zichong Xiao

Cyberattacks in an Internet of Things (IoT) environment can have significant impacts because of the interconnected nature of devices and systems. An attacker uses a network of compromised IoT devices in a botnet attack to carry out various…

Graph neural networks (GNNs) have emerged as an effective tool for fraud detection, identifying fraudulent users, and uncovering malicious behaviors. However, attacks against GNN-based fraud detectors and their risks have rarely been…

机器学习 · 计算机科学 2025-04-16 Jinhyeok Choi , Heehyeon Kim , Joyce Jiyoung Whang

Corporate fraud detection aims to automatically recognize companies that conduct wrongful activities such as fraudulent financial statements or illegal insider trading. Previous learning-based methods fail to effectively integrate rich…

机器学习 · 计算机科学 2025-06-02 Shiqi Wang , Zhibo Zhang , Libing Fang , Cam-Tu Nguyen , Wenzhong Li

Graph neural network-based network intrusion detection systems have recently demonstrated state-of-the-art performance on benchmark datasets. Nevertheless, these methods suffer from a reliance on target encoding for data pre-processing,…

密码学与安全 · 计算机科学 2024-03-01 Zhengyao Gu , Diego Troy Lopez , Lilas Alrahis , Ozgur Sinanoglu

Network intrusion detection systems play a crucial role in the security strategy employed by organisations to detect and prevent cyberattacks. Such systems usually combine pattern detection signatures with anomaly detection techniques…

密码学与安全 · 计算机科学 2026-03-13 Massimiliano Altieri , Ronan Hamon , Roberto Corizzo , Michelangelo Ceci , Ignacio Sanchez

The proliferation of IoT systems, has seen them targeted by malicious third parties. To address this, realistic protection and investigation countermeasures need to be developed. Such countermeasures include network intrusion detection and…

密码学与安全 · 计算机科学 2018-11-05 Nickolaos Koroniotis , Nour Moustafa , Elena Sitnikova , Benjamin Turnbull

The presence of a large number of bots on social media leads to adverse effects. Although Random forest algorithm is widely used in bot detection and can significantly enhance the performance of weak classifiers, it cannot utilize the…

机器学习 · 计算机科学 2023-04-18 Shuhao Shi , Kai Qiao , Jie Yang , Baojie Song , Jian Chen , Bin Yan

Detecting ever-evolving social bots has become increasingly challenging. Advanced bots tend to interact more with humans as a camouflage to evade detection. While graph-based detection methods can exploit various relations in social…

社会与信息网络 · 计算机科学 2024-08-29 Qi Wu , Yingguang Yang , Buyun He , Hao Liu , Renyu Yang , Yong Liao

We introduce the novel problem of benchmarking fraud detectors on private graph-structured data. Currently, many types of fraud are managed in part by automated detection algorithms that operate over graphs. We consider the scenario where a…

密码学与安全 · 计算机科学 2025-07-31 Alexander Goldberg , Giulia Fanti , Nihar Shah , Zhiwei Steven Wu

This study introduces a robust solution for the detection of Distributed Denial of Service (DDoS) attacks in Internet of Things (IoT) systems, leveraging the capabilities of Graph Convolutional Networks (GCN). By conceptualizing IoT devices…

密码学与安全 · 计算机科学 2024-03-15 Arvin Hekmati , Bhaskar Krishnamachari

Graph-based analyses have gained a lot of relevance in the past years due to their high potential in describing complex systems by detailing the actors involved, their relations and their behaviours. Nevertheless, in scenarios where these…

机器学习 · 计算机科学 2021-06-11 Francesco Zola , Lander Segurola , Jan Lukas Bruse , Mikel Galar Idoate

This study proposes an unsupervised anomaly detection method for distributed backend service systems, addressing practical challenges such as complex structural dependencies, diverse behavioral evolution, and the absence of labeled data.…

机器学习 · 计算机科学 2025-08-14 Yun Zi , Ming Gong , Zhihao Xue , Yujun Zou , Nia Qi , Yingnan Deng

Deceptive patterns in digital interfaces manipulate users into making unintended decisions, exploiting cognitive biases and psychological vulnerabilities. These patterns have become ubiquitous on various digital platforms. While efforts to…

人机交互 · 计算机科学 2025-11-21 Asmit Nayak , Shirley Zhang , Yash Wani , Rishabh Khandelwal , Kassem Fawaz

Transaction checkout fraud detection is an essential risk control components for E-commerce marketplaces. In order to leverage graph networks to decrease fraud rate efficiently and guarantee the information flow passed through neighbors…

机器学习 · 计算机科学 2021-10-12 Mingxuan Lu , Zhichao Han , Zitao Zhang , Yang Zhao , Yinan Shan

Data stream mining aims at extracting meaningful knowledge from continually evolving data streams, addressing the challenges posed by nonstationary environments, particularly, concept drift which refers to a change in the underlying data…

机器学习 · 计算机科学 2025-01-03 Kleanthis Malialis , Jin Li , Christos G. Panayiotou , Marios M. Polycarpou

With the advancement of IoT technology, many electronic devices are interconnected through networks, communicating with each other and performing specific roles. However, as numerous devices join networks, the threat of cyberattacks also…

密码学与安全 · 计算机科学 2023-11-28 Sangbeom Park , Jaesung Lee , Jeong Do Yoo , Min Geun Song , Hyosun Lee , Jaewoong Choi , Chaeyeon Sagong , Huy Kang Kim

Understanding latent user needs beneath shopping behaviors is critical to e-commercial applications. Without a proper definition of user needs in e-commerce, most industry solutions are not driven directly by user needs at current stage,…

信息检索 · 计算机科学 2019-10-09 Xusheng Luo , Yonghua Yang , Kenny Q. Zhu , Yu Gong , Keping Yang

Since the Internet of Things (IoT) is widely adopted using Android applications, detecting malicious Android apps is essential. In recent years, Android graph-based deep learning research has proposed many approaches to extract…

密码学与安全 · 计算机科学 2025-12-24 Rahul Yumlembam , Biju Issac , Seibu Mary Jacob , Longzhi Yang

Social bots have emerged over the last decade, initially creating a nuisance while more recently used to intimidate journalists, sway electoral events, and aggravate existing social fissures. This social threat has spawned a bot detection…

社会与信息网络 · 计算机科学 2020-07-16 David M. Beskow , Kathleen M. Carley