323 citations · 1k across the 34 of their papers we have counts for
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3 papers · 1 filter
math.OC2018★ 2 cited
Global Optimality in Distributed Low-rank Matrix Factorization
Zhihui Zhu, Qiuwei Li, Xinshuo Yang +2
We study the convergence of a variant of distributed gradient descent (DGD) on a distributed low-rank matrix approximation problem wherein some optimization variables are used for…
eess.SP2018★ 69 cited
Vandermonde Factorization of Hankel Matrix for Complex Exponential Signal Recovery -- Application in Fast NMR Spectroscopy
Jiaxi Ying, Jian-Feng Cai, Di Guo +3
Many signals are modeled as a superposition of exponential functions in spectroscopy of chemistry, biology and medical imaging. This paper studies the problem of recovering exponen…
cs.IT2018★ 3 cited
Stable Super-Resolution of Images: A Theoretical Study
Armin Eftekhari, Tamir Bendory, Gongguo Tang
We study the ubiquitous super-resolution problem, in which one aims at localizing positive point sources in an image, blurred by the point spread function of the imaging device. To…