9 citations · 13 across the 3 of their papers we have counts for
4 papers
Compressed sensing and Sequential Monte Carlo for solar hard X-ray imaging
Anna Maria Massone, Federica Sciacchitano, Michele Piana +1
We describe two inversion methods for the reconstruction of hard X-ray solar images. The methods are tested against experimental visibilities recorded by the Reuven Ramaty High Ene…
Sparse Bayesian Imaging of Solar Flares
Federica Sciacchitano, Silvio Lugaro, Alberto Sorrentino
We consider imaging of solar flares from NASA RHESSI data as a parametric imaging problem, where flares are represented as a finite collection of geometric shapes. We set up a Baye…
Identification of multiple hard X-ray sources in solar flares: A Bayesian analysis of the February 20 2002 event
Federica Sciacchitano, Alberto Sorrentino, A Gordon Emslie +2
The hard X-ray emission in a solar flare is typically characterized by a number of discrete sources, each with its own spectral, temporal, and spatial variability. Establishing the…
Bregman Cost for Non-Gaussian Noise
Martin Burger, Yiqiu Dong, Federica Sciacchitano
One of the tasks of the Bayesian inverse problem is to find a good estimate based on the posterior probability density. The most common point estimators are the conditional mean (C…