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1,052 results on '"Li, Sijie"'

11. Arithmetic Network Coding for Secret Sum Computation

Author

Li, Sijie and Li, Cheuk Ting

Subjects
Computer Science - Information Theory
Abstract

We consider a network coding problem where the destination wants to recover the sum of the signals (Gaussian random variables or random finite field elements) at all the source nodes, but the sum must be kept secret from an eavesdropper that can wiretap on a subset of edges. This setting arises naturally in sensor networks and federated learning, where the secrecy of the sum of the signals (e.g. weights, gradients) may be desired. While the case for finite field can be solved, the case for Gaussian random variables is surprisingly difficult. We give a simple conjecture on the necessary and sufficient condition under which such secret computation is possible for the Gaussian case, and prove the conjecture when the number of wiretapped edges is at most 2.

Published
2022

24. Network Coding with Myopic Adversaries

Author

Li, Sijie, Bitar, Rawad, Jaggi, Sidharth, and Zhang, Yihan

Subjects
Computer Science - Information Theory
Abstract

We consider the problem of reliable communication over a network containing a hidden {\it myopic} adversary who can eavesdrop on some $z_{ro}$ links, jam some $z_{wo}$ links, and do both on some $z_{rw}$ links. We provide the first information-theoretically tight characterization of the optimal rate of communication possible under all possible settings of the tuple $(z_{ro},z_{wo},z_{rw})$ by providing a novel coding scheme/analysis for a subset of parameter regimes. In particular, our vanishing-error schemes bypass the Network Singleton Bound (which requires a zero-error recovery criteria) in a certain parameter regime where the capacity had been heretofore open. As a direct corollary we also obtain the capacity of the corresponding problem where information-theoretic secrecy against eavesdropping is required in addition to reliable communication., Comment: Extended version of IEEE ISIT submission. Short video explaining the result: https://cuhk.zoom.us/rec/play/ZL93f6ool7K0T48aoRy5FS_sjme9DjLRDvaQeDLsR7IfV2aQGWrJVbqTTJ12Fg9qpXXvWVM4twAmIH-W.I88Ef9sVrWNS4Eog?startTime=1612281070000&_x_zm_rtaid=qXNfoabtTQK94kBK0YE-6A.1613735660905.fd77db9ef1a673afd9cd4ac45303144d&_x_zm_rhtaid=338

Published
2021

25. ARFG: Attach-Free RFID Finger-Tracking with Few Samples Based on GAN

Author

Li, Sijie, Yang, Lvqing, Chen, Sien, Ding, Jianwen, Dong, Wensheng, Yu, Bo, Wang, Qingkai, Wang, Menghao, Goos, Gerhard, Founding Editor, Hartmanis, Juris, Founding Editor, Bertino, Elisa, Editorial Board Member, Gao, Wen, Editorial Board Member, Steffen, Bernhard, Editorial Board Member, Yung, Moti, Editorial Board Member, Huang, De-Shuang, editor, Premaratne, Prashan, editor, Jin, Baohua, editor, Qu, Boyang, editor, Jo, Kang-Hyun, editor, and Hussain, Abir, editor

Published
2023
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36. Rational Design of Dual-Functionalized Gd@C82 Nanoparticles to Relieve Neuronal Cytotoxicity in Alzheimer’s Disease via Inhibition of Aβ Aggregation

Author

Yin, Xiuhua, primary, Zhou, Hong, additional, Cao, Tiantian, additional, Yang, Xiner, additional, Meng, Fei, additional, Dai, Xing, additional, Wang, Yifan, additional, Li, Sijie, additional, Zhai, Wangsong, additional, Yang, Zaixing, additional, Chen, Ning, additional, and Zhou, Ruhong, additional

Published
2024
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