378 citations · 1.2k across the 40 of their papers we have counts for
Showing 2016 · cs.ITShow all
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cs.IT2016
Sparse Representation in Fourier and Local Bases Using ProSparse: A Probabilistic Analysis
Yue M. Lu, Jon Oñativia, Pier Luigi Dragotti
Finding the sparse representation of a signal in an overcomplete dictionary has attracted a lot of attention over the past years. This paper studies ProSparse, a new polynomial com…
cs.IT2016★ 5 cited
Online Learning for Sparse PCA in High Dimensions: Exact Dynamics and Phase Transitions
Chuang Wang, Yue M. Lu
We study the dynamics of an online algorithm for learning a sparse leading eigenvector from samples generated from a spiked covariance model. This algorithm combines the classical…