1 code implementation • 23 Aug 2023 • Fumiyuki Kato, Li Xiong, Shun Takagi, Yang Cao, Masatoshi Yoshikawa
In this study, we present Uldp-FL, a novel FL framework designed to guarantee user-level DP in cross-silo FL where a single user's data may belong to multiple silos.
no code implementations • 8 Apr 2022 • Seng Pei Liew, Tsubasa Takahashi, Shun Takagi, Fumiyuki Kato, Yang Cao, Masatoshi Yoshikawa
However, introducing a centralized entity to the originally local privacy model loses some appeals of not having any centralized entity as in local differential privacy.
2 code implementations • 22 Jun 2020 • Shun Takagi, Tsubasa Takahashi, Yang Cao, Masatoshi Yoshikawa
The state-of-the-art approach for this problem is to build a generative model under differential privacy, which offers a rigorous privacy guarantee.
no code implementations • 19 Jun 2020 • Tsubasa Takahashi, Shun Takagi, Hajime Ono, Tatsuya Komatsu
This paper studies how to learn variational autoencoders with a variety of divergences under differential privacy constraints.
3 code implementations • 4 May 2020 • Yang Cao, Yonghui Xiao, Shun Takagi, Li Xiong, Masatoshi Yoshikawa, Yilin Shen, Jinfei Liu, Hongxia Jin, Xiaofeng Xu
Third, we design a private location trace release framework that pipelines the detection of location exposure, policy graph repair, and private trajectory release with customizable and rigorous location privacy.
Cryptography and Security Computers and Society
3 code implementations • 1 May 2020 • Yang Cao, Shun Takagi, Yonghui Xiao, Li Xiong, Masatoshi Yoshikawa
Our system has three primary functions for epidemic surveillance: location monitoring, epidemic analysis, and contact tracing.
Databases Cryptography and Security