no code implementations • 21 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.
no code implementations • 16 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.
no code implementations • 21 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.