Search Results for author: Alexandru Onose

Found 2 papers, 1 papers with code

A preconditioned accelerated stochastic gradient descent algorithm

no code implementations ICLR 2019 Alexandru Onose, Seyed Iman Mossavat, Henk-Jan H. Smilde

We derive sufficient convergence conditions for the minimization of convex functions using a generic class of diagonal preconditioners and provide a formal convergence proof based on a framework originally used for on-line learning.

Stochastic Optimization

Robust sparse image reconstruction of radio interferometric observations with purify

1 code implementation7 Oct 2016 Luke Pratley, Jason D. McEwen, Mayeul d'Avezac, Rafael E. Carrillo, Alexandru Onose, Yves Wiaux

However, they produce reconstructed inter\-ferometric images that are limited in quality and scalability for big data.

Instrumentation and Methods for Astrophysics

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