Title
Towards Fair Federated Learning with Zero-Shot Data Augmentation
Abstract
Federated learning has emerged as an important distributed learning paradigm, where a server aggregates a global model from many client-trained models, while having no access to the client data. Although it is recognized that statistical heterogeneity of the client local data yields slower global model convergence, it is less commonly recognized that it also yields a biased federated global model with a high variance of accuracy across clients. In this work, we aim to provide federated learning schemes with improved fairness. To tackle this challenge, we propose a novel federated learning system that employs zero-shot data augmentation on under-represented data to mitigate statistical heterogeneity, and encourage more uniform accuracy performance across clients in federated networks. We study two variants of this scheme, Fed-ZDAC (federated learning with zero-shot data augmentation at the clients) and Fed-ZDAS (federated learning with zero-shot data augmentation at the server). Empirical results on a suite of datasets demonstrate the effectiveness of our methods on simultaneously improving the test accuracy and fairness.
Year
DOI
Venue
2021
10.1109/CVPRW53098.2021.00369
2021 IEEE/CVF CONFERENCE ON COMPUTER VISION AND PATTERN RECOGITION WORKSHOPS (CVPRW 2021)
DocType
ISSN
Citations 
Conference
2160-7508
0
PageRank 
References 
Authors
0.34
0
8
Name
Order
Citations
PageRank
Weituo Hao121.71
El-Khamy Mostafa226428.10
Jungwon Lee389095.15
Jianyi Zhang465.21
Kevin J. Liang524.42
Changyou Chen636536.95
Lawrence Carin713711.38
Duke Lawrence Carin800.34