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There has been recent interest in leveraging federated learning (FL) for radio signal classification tasks. In FL, model parameters are periodically communicated from participating devices, training on their own local datasets, to a central…

Signal Processing · Electrical Eng. & Systems 2023-01-24 Su Wang , Rajeev Sahay , Christopher G. Brinton

Data poisoning attacks spoof a recommender system to make arbitrary, attacker-desired recommendations via injecting fake users with carefully crafted rating scores into the recommender system. We envision a cat-and-mouse game for such data…

Cryptography and Security · Computer Science 2023-03-28 Jinyuan Jia , Yupei Liu , Yuepeng Hu , Neil Zhenqiang Gong

Poisoning attacks compromise the training phase of federated learning (FL) such that the learned global model misclassifies attacker-chosen inputs called target inputs. Existing defenses mainly focus on protecting the training phase of FL…

Computer Vision and Pattern Recognition · Computer Science 2025-10-15 Yuqi Jia , Minghong Fang , Hongbin Liu , Jinghuai Zhang , Neil Zhenqiang Gong

Federated learning allows multiple clients to collaboratively train a global model with the assistance of a server. However, its distributed nature makes it susceptible to poisoning attacks, where malicious clients can compromise the global…

Cryptography and Security · Computer Science 2025-01-30 Wenbin Wang , Qiwen Ma , Zifan Zhang , Yuchen Liu , Zhuqing Liu , Minghong Fang

While recent works have indicated that federated learning (FL) may be vulnerable to poisoning attacks by compromised clients, their real impact on production FL systems is not fully understood. In this work, we aim to develop a…

Machine Learning · Computer Science 2021-12-14 Virat Shejwalkar , Amir Houmansadr , Peter Kairouz , Daniel Ramage

Manipulation of local training data and local updates, i.e., the poisoning attack, is the main threat arising from the collaborative nature of the federated learning (FL) paradigm. Most existing poisoning attacks aim to manipulate local…

Machine Learning · Computer Science 2025-05-30 Huazi Pan , Yanjun Zhang , Leo Yu Zhang , Scott Adams , Abbas Kouzani , Suiyang Khoo

Federated learning (FL) has become a popular tool for solving traditional Reinforcement Learning (RL) tasks. The multi-agent structure addresses the major concern of data-hungry in traditional RL, while the federated mechanism protects the…

Machine Learning · Computer Science 2024-01-08 Evelyn Ma , Praneet Rathi , S. Rasoul Etesami

Due to its distributed nature, federated learning is vulnerable to poisoning attacks, in which malicious clients poison the training process via manipulating their local training data and/or local model updates sent to the cloud server,…

Cryptography and Security · Computer Science 2022-10-05 Xiaoyu Cao , Zaixi Zhang , Jinyuan Jia , Neil Zhenqiang Gong

Recommender systems play an important role in modern information and e-commerce applications. While increasing research is dedicated to improving the relevance and diversity of the recommendations, the potential risks of state-of-the-art…

Machine Learning · Computer Science 2020-08-31 Jiaxi Tang , Hongyi Wen , Ke Wang

As one kind of distributed machine learning technique, federated learning enables multiple clients to build a model across decentralized data collaboratively without explicitly aggregating the data. Due to its ability to break data silos,…

Cryptography and Security · Computer Science 2023-06-07 Junchuan Lianga , Rong Wang , Chaosheng Feng , Chin-Chen Chang

Federated recommender systems (FedRecs) have been widely explored recently due to their ability to protect user data privacy. In FedRecs, a central server collaboratively learns recommendation models by sharing model public parameters with…

Information Retrieval · Computer Science 2023-05-18 Wei Yuan , Shilong Yuan , Chaoqun Yang , Quoc Viet Hung Nguyen , Hongzhi Yin

Federated online learning to rank (FOLTR) aims to preserve user privacy by not sharing their searchable data and search interactions, while guaranteeing high search effectiveness, especially in contexts where individual users have scarce…

Information Retrieval · Computer Science 2023-07-06 Shuyi Wang , Guido Zuccon

We present a Federated Learning (FL) based solution for building a distributed classifier capable of detecting URLs containing GDPR-sensitive content related to categories such as health, sexual preference, political beliefs, etc. Although…

Cryptography and Security · Computer Science 2024-04-09 Tianyue Chu , Alvaro Garcia-Recuero , Costas Iordanou , Georgios Smaragdakis , Nikolaos Laoutaris

Federated learning (FL) allows multiple clients to collaboratively train a global machine learning model with coordination from a central server, without needing to share their raw data. This approach is particularly appealing in the era of…

Cryptography and Security · Computer Science 2025-07-02 Wenjin Mo , Zhiyuan Li , Minghong Fang , Mingwei Fang

Federated learning (FL) enables the training of models among distributed clients without compromising the privacy of training datasets, while the invisibility of clients datasets and the training process poses a variety of security threats.…

Cryptography and Security · Computer Science 2023-01-18 Subhash Sagar , Chang-Sun Li , Seng W. Loke , Jinho Choi

Federated learning (FL) is a distributed machine learning paradigm that enables training models on decentralized data. The field of FL security against poisoning attacks is plagued with confusion due to the proliferation of research that…

Machine Learning · Computer Science 2024-03-12 Hamid Mozaffari , Sunav Choudhary , Amir Houmansadr

Federated learning (FL) goes beyond traditional, centralized machine learning by distributing model training among a large collection of edge clients. These clients cooperatively train a global, e.g., cloud-hosted, model without disclosing…

Cryptography and Security · Computer Science 2024-02-26 Gabriele Costa , Fabio Pinelli , Simone Soderi , Gabriele Tolomei

Federated Learning (FL) enables training of a global model from distributed data, while preserving data privacy. However, the singular-model based operation of FL is open with uploading poisoned models compatible with the global model…

Machine Learning · Computer Science 2024-09-13 Somayeh Kianpisheh , Chafika Benzaid , Tarik Taleb

Federated Learning (FL) is a technique that allows multiple parties to train a shared model collaboratively without disclosing their private data. It has become increasingly popular due to its distinct privacy advantages. However, FL models…

Machine Learning · Computer Science 2024-10-04 Syed Irfan Ali Meerza , Jian Liu

Traditional machine learning systems were designed in a centralized manner. In such designs, the central entity maintains both the machine learning model and the data used to adjust the model's parameters. As data centralization yields…

Distributed, Parallel, and Cluster Computing · Computer Science 2024-03-12 Alexandre Pham , Maria Potop-Butucaru , Sébastien Tixeuil , Serge Fdida