39 citations · 87 across the 16 of their papers we have counts for
Showing 2019Show all
2 papers · 1 filter
math.NA2019
Fast approximation of orthogonal matrices and application to PCA
Cristian Rusu, Lorenzo Rosasco
We study the problem of approximating orthogonal matrices so that their application is numerically fast and yet accurate. We find an approximation by solving an optimization proble…
eess.SP2019
A Note on Shift Retrieval Problems
Cristian Rusu
In this note, we discuss the shift retrieval problems, both classical and compressed, and provide connections between them using circulant matrices. We review the properties of cir…