Online blind deconvolution for Astronomy (2009)
Harmeling, S., Hirsch, M., Sra, S., Schölkopf, B.
Atmospheric turbulences blur astronomical images taken by earth-based telescopes. Taking many short-time exposures in such a situation provides noisy images of the same object, where each noisy image...
Block Iterative Algorithms for Non-negative Matrix Approximation (2008)
Sra, S., Giannotti, F., Gunopulos, D., Turini, F., Zaniolo, C., Ramakrishnan, N., ...
In this paper we present new algorithms for non-negative matrix approximation (NMA), commonly known as the NMF problem. Our methods improve upon the well-known methods of Lee & Seung~cite{lee00} for...