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Federated learning has become increasingly widespread due to its ability to train models collaboratively without centralizing sensitive data. While most research on FL emphasizes privacy-preserving techniques during training, the evaluation…

Cryptography and Security · Computer Science 2025-08-12 Cem Ata Baykara , Ali Burak Ünal , Mete Akgün

Recently, foundation models, particularly large language models (LLMs), have demonstrated an impressive ability to adapt to various tasks by fine-tuning diverse instruction data. Notably, federated foundation models (FedFM) emerge as a…

Machine Learning · Computer Science 2024-12-03 Yiyuan Yang , Guodong Long , Tao Shen , Jing Jiang , Michael Blumenstein

Foundation models are becoming increasingly popular due to their strong generalization capabilities resulting from being trained on huge datasets. These generalization capabilities are attractive in areas such as NIR Iris Presentation…

Computer Vision and Pattern Recognition · Computer Science 2025-01-14 Juan E. Tapia , Lázaro Janier González-Soler , Christoph Busch

Automated recognition of autistic behaviors in children is essential for early intervention and objective clinical assessment. However, the development of robust models is severely hindered by strict privacy regulations (e.g., HIPAA) and…

Computer Vision and Pattern Recognition · Computer Science 2026-04-06 Guangyu Sun , Wenhan Wu , Zhishuai Guo , Ziteng Wang , Pegah Khosravi , Chen Chen

Face forgery techniques have advanced rapidly and pose serious security threats. Existing face forgery detection methods try to learn generalizable features, but they still fall short of practical application. Additionally, finetuning these…

Computer Vision and Pattern Recognition · Computer Science 2023-08-14 Ke Sun , Shen Chen , Taiping Yao , Xiaoshuai Sun , Shouhong Ding , Rongrong Ji

Face anti-spoofing (FAS) approaches based on unsupervised domain adaption (UDA) have drawn growing attention due to promising performances for target scenarios. Most existing UDA FAS methods typically fit the trained models to the target…

Computer Vision and Pattern Recognition · Computer Science 2022-11-24 Qianyu Zhou , Ke-Yue Zhang , Taiping Yao , Ran Yi , Kekai Sheng , Shouhong Ding , Lizhuang Ma

Federated learning has been proposed as a privacy-preserving machine learning framework that enables multiple clients to collaborate without sharing raw data. However, client privacy protection is not guaranteed by design in this framework.…

Cryptography and Security · Computer Science 2022-10-17 Kai Yue , Richeng Jin , Chau-Wai Wong , Dror Baron , Huaiyu Dai

The vulnerability against presentation attacks is a crucial problem undermining the wide-deployment of face recognition systems. Though presentation attack detection (PAD) systems try to address this problem, the lack of generalization and…

Computer Vision and Pattern Recognition · Computer Science 2022-02-22 Anjith George , David Geissbuhler , Sebastien Marcel

Machine learning tools are becoming increasingly powerful and widely used. Unfortunately membership attacks, which seek to uncover information from data sets used in machine learning, have the potential to limit data sharing. In this paper…

Computer Vision and Pattern Recognition · Computer Science 2021-08-03 Dennis Conway , Loic Simon , Alexis Lechervy , Frederic Jurie

Foundation models (FMs) excel in zero-shot tasks but benefit from task-specific adaptation. However, privacy concerns prevent data sharing among multiple data owners, and proprietary restrictions prevent the learning service provider (LSP)…

Machine Learning · Computer Science 2025-10-02 Nurbek Tastan , Karthik Nandakumar

Federated Learning (FL) has become a key method for preserving data privacy in Internet of Things (IoT) environments, as it trains Machine Learning (ML) models locally while transmitting only model updates. Despite this design, FL remains…

Machine Learning · Computer Science 2025-03-25 Fardin Jalil Piran , Zhiling Chen , Mohsen Imani , Farhad Imani

Existing skeleton-based action recognition methods typically follow a centralized learning paradigm, which can pose privacy concerns when exposing human-related videos. Federated Learning (FL) has attracted much attention due to its…

Computer Vision and Pattern Recognition · Computer Science 2023-06-21 Jingwen Guo , Hong Liu , Shitong Sun , Tianyu Guo , Min Zhang , Chenyang Si

In this paper, we propose a method for privacy-preserving federated learning that uses randomly selected model parameters to update global models. High-quality deep neural networks (DNN) models require a huge amount of training data in…

Cryptography and Security · Computer Science 2026-05-05 Hiroto Sawada , Shoko Imaizumi , Hitoshi Kiya

Federated Learning (FL) is a distributed machine learning diagram that enables multiple clients to collaboratively train a global model without sharing their private local data. However, FL systems are vulnerable to attacks that are…

Machine Learning · Computer Science 2024-08-20 Qilei Li , Ahmed M. Abdelmoniem

Federated learning (FL) enhances privacy by keeping user data on local devices. However, emerging attacks have demonstrated that the updates shared by users during training can reveal significant information about their data. This has…

In light of the rising demand for biometric-authentication systems, preventing face spoofing attacks is a critical issue for the safe deployment of face recognition systems. Here, we propose an efficient face presentation attack detection…

Computer Vision and Pattern Recognition · Computer Science 2020-12-17 Akinori F. Ebihara , Kazuyuki Sakurai , Hitoshi Imaoka

Federated Learning (FL) has emerged as a compelling paradigm for privacy-preserving distributed machine learning, allowing multiple clients to collaboratively train a global model by transmitting locally computed gradients to a central…

Computer Vision and Pattern Recognition · Computer Science 2026-04-02 Hao Fang , Wenbo Yu , Bin Chen , Xuan Wang , Shu-Tao Xia , Qing Liao , Ke Xu

Test-time personalization in federated learning enables models at clients to adjust online to local domain shifts, enhancing robustness and personalization in deployment. Yet, existing federated learning work largely overlooks the security…

Cryptography and Security · Computer Science 2025-11-25 Md Akil Raihan Iftee , Syed Md. Ahnaf Hasan , Amin Ahsan Ali , AKM Mahbubur Rahman , Sajib Mistry , Aneesh Krishna

Federated video action recognition enables collaborative model training without sharing raw video data, yet remains vulnerable to two key challenges: \textit{model exposure} and \textit{communication overhead}. Gradients exchanged between…

Computer Vision and Pattern Recognition · Computer Science 2026-03-24 Idris Zakariyya , Pai Chet Ng , Kaushik Bhargav Sivangi , S. Mohammad Sheikholeslami , Konstantinos N. Plataniotis , Fani Deligianni

Backdoor attacks pose a significant threat to deep neural networks, particularly as recent advancements have led to increasingly subtle implantation, making the defense more challenging. Existing defense mechanisms typically rely on an…

Cryptography and Security · Computer Science 2024-09-19 Yukai Xu , Yujie Gu , Kouichi Sakurai