Federated Active Learning (F-AL): an Efficient Annotation Strategy for Federated Learning

Fuente: arXiv
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Main Authors: Ahn, Jin-Hyun, Kim, Kyungsang, Koh, Jeongwan, Li, Quanzheng
Format: Preprint
Published: 2022
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author Ahn, Jin-Hyun
Kim, Kyungsang
Koh, Jeongwan
Li, Quanzheng
author_facet Ahn, Jin-Hyun
Kim, Kyungsang
Koh, Jeongwan
Li, Quanzheng
contents 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 propose to apply active learning (AL) and sampling strategy into the FL framework to reduce the annotation workload. We expect that the AL and FL can improve the performance of each other complementarily. In our proposed federated active learning (F-AL) method, the clients collaboratively implement the AL to obtain the instances which are considered as informative to FL in a distributed optimization manner. We compare the test accuracies of the global FL models using the conventional random sampling strategy, client-level separate AL (S-AL), and the proposed F-AL. We empirically demonstrate that the F-AL outperforms baseline methods in image classification tasks.
format Preprint
id arxiv_https___arxiv_org_abs_2202_00195
institution arXiv
publishDate 2022
record_format arxiv
spellingShingle Federated Active Learning (F-AL): an Efficient Annotation Strategy for Federated Learning
Ahn, Jin-Hyun
Kim, Kyungsang
Koh, Jeongwan
Li, Quanzheng
Machine Learning
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 propose to apply active learning (AL) and sampling strategy into the FL framework to reduce the annotation workload. We expect that the AL and FL can improve the performance of each other complementarily. In our proposed federated active learning (F-AL) method, the clients collaboratively implement the AL to obtain the instances which are considered as informative to FL in a distributed optimization manner. We compare the test accuracies of the global FL models using the conventional random sampling strategy, client-level separate AL (S-AL), and the proposed F-AL. We empirically demonstrate that the F-AL outperforms baseline methods in image classification tasks.
title Federated Active Learning (F-AL): an Efficient Annotation Strategy for Federated Learning
topic Machine Learning
url https://arxiv.org/abs/2202.00195