3 citations · 3 across the 4 of their papers we have counts for
4 papers
Iterative Atom Refinement: A Monotonicity Principle for Dictionary Learning
Alexander Christie, Miguel Moscoso, Alexei Novikov +2
Dictionary learning seeks to recover an unknown dictionary from observations with sparse coefficient vectors . We introduce the \emph{Iterat…
Imaging with super-resolution in changing random media
Alexander Christie, Matan Leibovich, Miguel Moscoso +3
We develop an imaging algorithm that exploits strong scattering to achieve super-resolution in changing random media. The method processes large and diverse array datasets using sp…
Super-resolution in disordered media using neural networks
Alexander Christie, Matan Leibovich, Miguel Moscoso +3
We propose a methodology that exploits large and diverse data sets to accurately estimate the ambient medium's Green's functions in strongly scattering media. Given these estimates…
Speeding up Langevin Dynamics by Mixing
Alexander Christie, Yuanyuan Feng, Gautam Iyer +1
We study an overdamped Langevin equation on the -dimensional torus with stationary distribution proportional to~. When~ has multiple wells the mixing time of…