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Federated learning (FL) is a trending training paradigm to utilize decentralized training data. FL allows clients to update model parameters locally for several epochs, then share them to a global model for aggregation. This training…

Machine Learning · Computer Science 2022-08-09 Xiaoxiao Li , Zhao Song , Jiaming Yang

In this paper, we propose a Dual Focal Loss (DFL) function, as a replacement for the standard cross entropy (CE) function to achieve a better treatment of the unbalanced classes in a dataset. Our DFL method is an improvement on the recently…

Computer Vision and Pattern Recognition · Computer Science 2020-11-30 Md Sazzad Hossain , Andrew P Paplinski , John M Betts

Deepfake technology has raised concerns about the authenticity of digital content, necessitating the development of effective detection methods. However, the widespread availability of deepfakes has given rise to a new challenge in the form…

Computer Vision and Pattern Recognition · Computer Science 2024-03-15 Sarwar Khan

In this paper, we propose a new approach called MemLoss to improve the adversarial training of machine learning models. MemLoss leverages previously generated adversarial examples, referred to as 'Memory Adversarial Examples,' to enhance…

Machine Learning · Computer Science 2025-10-13 Soroush Mahdi , Maryam Amirmazlaghani , Saeed Saravani , Zahra Dehghanian

Federated learning (FL), as an emerging artificial intelligence (AI) approach, enables decentralized model training across multiple devices without exposing their local training data. FL has been increasingly gaining popularity in both…

Machine Learning · Computer Science 2023-10-23 Victoria Huang , Shaleeza Sohail , Michael Mayo , Tania Lorido Botran , Mark Rodrigues , Chris Anderson , Melanie Ooi

Adversarial examples provide an opportunity as well as impose a challenge for understanding image classification systems. Based on the analysis of the adversarial training solution Adversarial Logits Pairing (ALP), we observed in this work…

Computer Vision and Pattern Recognition · Computer Science 2021-04-19 Shangxi Wu , Jitao Sang , Kaiyuan Xu , Guanhua Zheng , Changsheng Xu

In this paper, we introduce analytic federated learning (AFL), a new training paradigm that brings analytical (i.e., closed-form) solutions to the federated learning (FL) with pre-trained models. Our AFL draws inspiration from analytic…

Machine Learning · Computer Science 2026-04-09 Run He , Kai Tong , Di Fang , Han Sun , Ziqian Zeng , Haoran Li , Tianyi Chen , Huiping Zhuang

Recent years have witnessed a burgeoning interest in federated learning (FL). However, the contexts in which clients engage in sequential learning remain under-explored. Bridging FL and continual learning (CL) gives rise to a challenging…

Machine Learning · Computer Science 2025-02-21 Abudukelimu Wuerkaixi , Sen Cui , Jingfeng Zhang , Kunda Yan , Bo Han , Gang Niu , Lei Fang , Changshui Zhang , Masashi Sugiyama

The deep neural network is vulnerable to adversarial examples. Adding imperceptible adversarial perturbations to images is enough to make them fail. Most existing research focuses on attacking image classifiers or anchor-based object…

Computer Vision and Pattern Recognition · Computer Science 2020-10-28 Quanyu Liao , Xin Wang , Bin Kong , Siwei Lyu , Youbing Yin , Qi Song , Xi Wu

Deep neural networks obtain state-of-the-art performance on a series of tasks. However, they are easily fooled by adding a small adversarial perturbation to input. The perturbation is often human imperceptible on image data. We observe a…

Machine Learning · Computer Science 2019-06-11 Puyudi Yang , Jianbo Chen , Cho-Jui Hsieh , Jane-Ling Wang , Michael I. Jordan

Federated learning (FL) has been intensively investigated in terms of communication efficiency, privacy, and fairness. However, efficient annotation, which is a pain point in real-world FL applications, is less studied. In this project, we…

Machine Learning · Computer Science 2024-03-19 Jin-Hyun Ahn , Kyungsang Kim , Jeongwan Koh , Quanzheng Li

Decision-Focused Learning (DFL) is a paradigm for tailoring a predictive model to a downstream optimization task that uses its predictions in order to perform better on that specific task. The main technical challenge associated with DFL is…

Machine Learning · Computer Science 2022-11-10 Sanket Shah , Kai Wang , Bryan Wilder , Andrew Perrault , Milind Tambe

Federated Learning (FL) faces major challenges regarding communication overhead and model privacy when training large language models (LLMs), especially in healthcare applications. To address these, we introduce Selective Attention…

Computation and Language · Computer Science 2025-04-22 Yue Li , Lihong Zhang

Federated Learning (FL) aims to learn a single global model that enables the central server to help the model training in local clients without accessing their local data. The key challenge of FL is the heterogeneity of local data in…

Machine Learning · Computer Science 2023-04-17 Sicong Liang , Junchao Tian , Shujun Yang , Yu Zhang

Local feature extraction is a standard approach in computer vision for tackling important tasks such as image matching and retrieval. The core assumption of most methods is that images undergo affine transformations, disregarding more…

Computer Vision and Pattern Recognition · Computer Science 2023-04-04 Guilherme Potje , Felipe Cadar , Andre Araujo , Renato Martins , Erickson R. Nascimento

Transformer-based models have been widely adopted for sentiment analysis tasks due to their exceptional ability to capture contextual information. However, these methods often exhibit suboptimal accuracy in certain scenarios. By analyzing…

Artificial Intelligence · Computer Science 2025-12-25 Yawei Liu

Federated learning (FL) has gained significant attention for enabling decentralized training on edge networks without exposing raw data. However, FL models remain susceptible to adversarial attacks and performance degradation in non-IID…

Computer Vision and Pattern Recognition · Computer Science 2025-04-10 Yu Qiao , Apurba Adhikary , Huy Q. Le , Eui-Nam Huh , Zhu Han , Choong Seon Hong

Robustness of huge Transformer-based models for natural language processing is an important issue due to their capabilities and wide adoption. One way to understand and improve robustness of these models is an exploration of an adversarial…

In face recognition, designing margin-based (e.g., angular, additive, additive angular margins) softmax loss functions plays an important role in learning discriminative features. However, these hand-crafted heuristic methods are…

Computer Vision and Pattern Recognition · Computer Science 2020-07-14 Xiaobo Wang , Shuo Wang , Cheng Chi , Shifeng Zhang , Tao Mei

In decentralized federated learning (DFL), the presence of abnormal clients, often caused by noisy or poisoned data, can significantly disrupt the learning process and degrade the overall robustness of the model. Previous methods on this…

Machine Learning · Computer Science 2025-12-04 Shuyuan Wu , Feifei Wang , Yuan Gao , Rui Wang , Hansheng Wang
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