Search Results for author: Jiaojiao Zhang

Found 5 papers, 0 papers with code

Differentially Private Online Federated Learning with Correlated Noise

no code implementations25 Mar 2024 Jiaojiao Zhang, Linglingzhi Zhu, Mikael Johansson

We propose a novel differentially private algorithm for online federated learning that employs temporally correlated noise to improve the utility while ensuring the privacy of the continuously released models.

Federated Learning

Composite federated learning with heterogeneous data

no code implementations4 Sep 2023 Jiaojiao Zhang, Jiang Hu, Mikael Johansson

We propose a novel algorithm for solving the composite Federated Learning (FL) problem.

Federated Learning

Dynamic Privacy Allocation for Locally Differentially Private Federated Learning with Composite Objectives

no code implementations2 Aug 2023 Jiaojiao Zhang, Dominik Fay, Mikael Johansson

This paper proposes a locally differentially private federated learning algorithm for strongly convex but possibly nonsmooth problems that protects the gradients of each worker against an honest but curious server.

Federated Learning

MPS-AMS: Masked Patches Selection and Adaptive Masking Strategy Based Self-Supervised Medical Image Segmentation

no code implementations27 Feb 2023 Xiangtao Wang, Ruizhi Wang, Biao Tian, Jiaojiao Zhang, Shuo Zhang, Junyang Chen, Thomas Lukasiewicz, Zhenghua Xu

We leverage the masked patches selection strategy to choose masked patches with lesions to obtain more lesion representation information, and the adaptive masking strategy is utilized to help learn more mutual information and improve performance further.

Contrastive Learning Image Segmentation +4

Diagnosis of electron density and temperature by using collisional radiative model in capacitively coupled Ar plasmas I: triple-frequency discharges

no code implementations21 Oct 2020 Hao Zheng, Jidun Wu, Qilu Cao, Jiaojiao Zhang, Xiaojiang Huang

Compared with the dual-frequency (DF) CCPs, it is found that with the increase of IF power, the HF power can control the electron density more independently with less influence on the electron temperature.

Plasma Physics

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