Search Results for author: Chenxu Li

Found 3 papers, 0 papers with code

LMPDNet: TOF-PET list-mode image reconstruction using model-based deep learning method

no code implementations21 Feb 2023 Chenxu Li, Rui Hu, Jianan Cui, Huafeng Liu

Additionally, we compare the spatial and temporal consumption of list-mode data and sinogram data in model-based deep learning methods, demonstrating the superiority of list-mode data in model-based TOF-PET reconstruction.

Image Reconstruction

Federated Coordinate Descent for Privacy-Preserving Multiparty Linear Regression

no code implementations16 Sep 2022 Xinlin Leng, Chenxu Li, Weifeng Xu, Yuyan Sun, Hongtao Wang

We show that the FCD scheme fills the gap of multiparty secure Coordinate Descent methods and is applicable for general linear regressions, including linear, ridge and lasso regressions.

Privacy Preserving regression

Wealth Effect on Portfolio Allocation in Incomplete Markets

no code implementations21 Apr 2020 Chenxu Li, Olivier Scaillet, Yiwen Shen

We develop a novel five-component decomposition of optimal dynamic portfolio choice, which reveals the simultaneous impacts from market incompleteness and wealth-dependent utilities.

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