2 citations · 4 across the 4 of their papers we have counts for
5 papers · 1 filter
Computer Assisted Localization of a Heart Arrhythmia
Chris Vogl, Peng Zheng, Stephen P. Seslar +1
We consider the problem of locating a point-source heart arrhythmia using data from a standard diagnostic procedure, where a reference catheter is placed in the heart, and arrival…
A Unified Framework for Sparse Relaxed Regularized Regression: SR3
Peng Zheng, Travis Askham, Steven L. Brunton +2
Regularized regression problems are ubiquitous in statistical modeling, signal processing, and machine learning. Sparse regression in particular has been instrumental in scientific…
Learning Nonlinear Brain Dynamics: van der Pol Meets LSTM
German Abrevaya, Irina Rish, Aleksandr Y. Aravkin +7
Many real-world data sets, especially in biology, are produced by complex nonlinear dynamical systems. In this paper, we focus on brain calcium imaging (CaI) of different organisms…
M-estimation with the Trimmed l1 Penalty
Jihun Yun, Peng Zheng, Eunho Yang +2
We study high-dimensional estimators with the trimmed penalty, which leaves the largest parameter entries penalty-free. While optimization techniques for this nonconve…
Relax-and-split method for nonsmooth nonconvex problems
Peng Zheng, Aleksandr Aravkin
We develop and analyze a new `relax-and-split' (RS) approach for compositions of separable nonconvex nonsmooth functions with linear maps. RS uses a relaxation technique together w…