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Enterprises are facing increasing risks of insider threats, while existing detection methods are unable to effectively address these challenges due to reasons such as insufficient temporal dynamic feature modeling, computational efficiency…

密码学与安全 · 计算机科学 2025-08-11 Kaichuan Kong , Dongjie Liu , Xiaobo Jin , Zhiying Li , Guanggang Geng , Jian Weng

Multimodal medical analysis combining image and tabular data has gained increasing attention. However, effective fusion remains challenging due to cross-modal discrepancies in feature dimensions and modality contributions, as well as the…

计算机视觉与模式识别 · 计算机科学 2025-09-17 Congjing Yu , Jing Ye , Yang Liu , Xiaodong Zhang , Zhiyong Zhang

Hierarchical federated learning (HFL) has demonstrated promising scalability advantages over the traditional "star-topology" architecture-based federated learning (FL). However, HFL still imposes significant computation, communication, and…

机器学习 · 计算机科学 2025-01-28 Wenzhi Fang , Dong-Jun Han , Christopher G. Brinton

Long-tailed distributions in class-imbalanced data present a fundamental challenge for deep learning models, which tend to be biased toward majority classes. While recent methods for long-tailed recognition have mitigated this issue, they…

计算机视觉与模式识别 · 计算机科学 2026-05-12 Heegeon Yoon , Heeyoung Kim

Identity tracing is a technology that uses the selection and collection of identity attributes of the object to be tested to discover its true identity, and it is one of the most important foundational issues in the field of social security…

信息检索 · 计算机科学 2023-11-07 Decheng Liu , Jiahao Yu , Ruimin Hu , Wenbin Feng

Data fabric is an automated and AI-driven data fusion approach to accomplish data management unification without moving data to a centralized location for solving complex data problems. In a Federated learning architecture, the global model…

Accurate forecasting in financial markets requires integrating diverse data sources, from historical prices to macroeconomic indicators and financial news. However, existing models often fail to align these modalities effectively, limiting…

机器学习 · 计算机科学 2025-11-04 Yunhua Pei , John Cartlidge , Anandadeep Mandal , Daniel Gold , Enrique Marcilio , Riccardo Mazzon

Federated Learning is a well-researched approach for collaboratively training machine learning models across decentralized data while preserving privacy. However, integrating Homomorphic Encryption to ensure data confidentiality introduces…

密码学与安全 · 计算机科学 2024-09-13 Jiaxang Tang , Zeshan Fayyaz , Mohammad A. Salahuddin , Raouf Boutaba , Zhi-Li Zhang , Ali Anwar

The continuous strengthening of the security posture of IoT ecosystems is vital due to the increasing number of interconnected devices and the volume of sensitive data shared. The utilisation of Machine Learning (ML) capabilities in the…

密码学与安全 · 计算机科学 2022-04-12 Mohanad Sarhan , Wai Weng Lo , Siamak Layeghy , Marius Portmann

Data Drift is the phenomenon where the generating model behind the data changes over time. Due to data drift, any model built on the past training data becomes less relevant and inaccurate over time. Thus, detecting and controlling for data…

机器学习 · 计算机科学 2025-04-29 Subhadip Bandyopadhyay , Joy Bose , Sujoy Roy Chowdhury

While traditional federated learning (FL) typically focuses on a star topology where clients are directly connected to a central server, real-world distributed systems often exhibit hierarchical architectures. Hierarchical FL (HFL) has…

机器学习 · 计算机科学 2024-12-18 Wenzhi Fang , Dong-Jun Han , Evan Chen , Shiqiang Wang , Christopher G. Brinton

Despite the recent success of large language models (LLMs) in time-series forecasting, most existing methods still adopt a Deep Synchronous Fusion strategy, where dense interactions between textual and temporal features are enforced at…

机器学习 · 计算机科学 2026-04-15 Fan Zhang , Shiming Fan , Hua Wang

Multi-sensor fusion systems (MSFs) play a vital role as the perception module in modern autonomous vehicles (AVs). Therefore, ensuring their robustness against common and realistic adversarial semantic transformations, such as rotation and…

机器学习 · 计算机科学 2024-03-05 Zijian Huang , Wenda Chu , Linyi Li , Chejian Xu , Bo Li

There are increasing concerns about malicious attacks on autonomous vehicles. In particular, inaudible voice command attacks pose a significant threat as voice commands become available in autonomous driving systems. How to empirically…

密码学与安全 · 计算机科学 2023-06-09 Jiwei Guan , Lei Pan , Chen Wang , Shui Yu , Longxiang Gao , Xi Zheng

Recent studies reveal that integrating new modalities into Large Language Models (LLMs), such as Vision-Language Models (VLMs), creates a new attack surface that bypasses existing safety training techniques like Supervised Fine-tuning (SFT)…

Federated Learning (FL) enables collaborative training while keeping sensitive data on clients' devices, but local model updates can still leak private information. Hybrid Homomorphic Encryption (HHE) has recently been applied to FL to…

密码学与安全 · 计算机科学 2026-03-30 Ivan Costa , Pedro Correia , Ivone Amorim , Eva Maia , Isabel Praça

Federated learning (FL) is a distributed Machine Learning (ML) framework that is capable of training a new global model by aggregating clients' locally trained models without sharing users' original data. Federated learning as a service…

分布式、并行与集群计算 · 计算机科学 2024-10-15 Wentao Gao , Omid Tavallaie , Shuaijun Chen , Albert Zomaya

Monitoring complex systems results in massive multivariate time series data, and anomaly detection of these data is very important to maintain the normal operation of the systems. Despite the recent emergence of a large number of anomaly…

机器学习 · 计算机科学 2021-06-14 Liwei Deng , Xuanhao Chen , Yan Zhao , Kai Zheng

Federated Learning is a promising approach for learning from user data while preserving data privacy. However, the high requirements of the model training process make it difficult for clients with limited memory or bandwidth to…

密码学与安全 · 计算机科学 2024-01-18 Minh K. Quan , Dinh C. Nguyen , Van-Dinh Nguyen , Mayuri Wijayasundara , Sujeeva Setunge , Pubudu N. Pathirana

Multimodal foundation models (MFMs) integrate diverse data modalities to support complex and wide-ranging tasks. However, this integration also introduces distinct safety and security challenges. In this paper, we unify the concepts of…

密码学与安全 · 计算机科学 2026-02-10 Ruoxi Sun , Jiamin Chang , Hammond Pearce , Chaowei Xiao , Bo Li , Qi Wu , Surya Nepal , Minhui Xue