Search Results for author: Lingfeng li

Found 7 papers, 1 papers with code

BP-DeepONet: A new method for cuffless blood pressure estimation using the physcis-informed DeepONet

no code implementations29 Feb 2024 Lingfeng li, Xue-Cheng Tai, Raymond Chan

Unlike previous methods, our approach requires the predicted ABP waveforms to satisfy the Navier-Stokes equation with a time-periodic condition and a Windkessel boundary condition.

Blood pressure estimation Meta-Learning

Axi-Higgs Cosmology

no code implementations22 Feb 2021 Leo WH Fung, Lingfeng li, Tao Liu, Hoang Nhan Luu, Yu-Cheng Qiu, S. -H. Henry Tye

If the electroweak Higgs vacuum expectation value $v$ in early universe is $\sim 1 \%$ higher than its present value $v_0=246$ GeV, the $^7$Li puzzle in BBN and the CMB/$\Lambda$CDM tension with late-universe measurements on Hubble parameter are mitigated.

High Energy Physics - Phenomenology Cosmology and Nongalactic Astrophysics High Energy Physics - Theory

A level set representation method for N-dimensional convex shape and applications

no code implementations21 Mar 2020 Lingfeng li, Shousheng Luo, Xue-Cheng Tai, Jiang Yang

We apply this new method to two applications: object segmentation with convexity prior and convex hull problem (especially with outliers).

Object Semantic Segmentation

Convex hull algorithms based on some variational models

no code implementations9 Aug 2019 Lingfeng Li, Shousheng Luo, Xue-Cheng Tai, Jiang Yang

In this model, the convex hull is characterized by the zero sublevel-set of a convex level set function, which is non-positive at every given point.

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