61 citations · 167 across the 16 of their papers we have counts for
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stat.OT2018★ 17 cited
Optimal spectral shrinkage and PCA with heteroscedastic noise
William Leeb, Elad Romanov
This paper studies the related problems of prediction, covariance estimation, and principal component analysis for the spiked covariance model with heteroscedastic noise. We consid…
cs.IT2018★ 7 cited
The Noise-Sensitivity Phase Transition in Spectral Group Synchronization Over Compact Groups
Elad Romanov, Matan Gavish
In Group Synchronization, one attempts to find a collection of unknown group elements from noisy measurements of their pairwise differences. Several important problems in vision an…