Zobrazeno 1 - 10
of 113
pro vyhledávání: '"Sorrentino, Alberto"'
In Bayesian inverse problems, one aims at characterizing the posterior distribution of a set of unknowns, given indirect measurements. For non-linear/non-Gaussian problems, analytic solutions are seldom available: Sequential Monte Carlo samplers offe
Externí odkaz:
http://arxiv.org/abs/2212.12205
The study of functional connectivity from magnetoecenphalographic (MEG) data consists in quantifying the statistical dependencies among time series describing the activity of different neural sources from the magnetic field recorded outside the scalp
Externí odkaz:
http://arxiv.org/abs/2011.14827
We present a very simple yet powerful generalization of a previously described model and algorithm for estimation of multiple dipoles from magneto/electro-encephalographic data. Specifically, the generalization consists in the introduction of a log-u
Externí odkaz:
http://arxiv.org/abs/2006.04141
We consider the problem of reconstructing the cross--power spectrum of an unobservable multivariate stochatic process from indirect measurements of a second multivariate stochastic process, related to the first one through a linear operator. In the t
Externí odkaz:
http://arxiv.org/abs/1909.01266
Autor:
Pascarella, Annalisa, Mikulan, Ezequiel, Sciacchitano, Federica, Sarasso, Simone, Rubino, Annalisa, Sartori, Ivana, Cardinale, Francesco, Zauli, Flavia, Avanzini, Pietro, Nobili, Lino, Pigorini, Andrea, Sorrentino, Alberto
Publikováno v:
In NeuroImage 15 August 2023 277
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 Energy Solar Spectroscopic Imager (RHESSI) and synthetic visibilities bas
Externí odkaz:
http://arxiv.org/abs/1812.08413
Autor:
Sommariva, Sara, Romoli, Giulia, Vallarino, Elisabetta, Di Fino, Luca, Sorrentino, Alberto, Amantini, Giorgia Santi, Sannita, Walter G., Piana, Michele, Narici, Livio
Publikováno v:
In Life Sciences in Space Research February 2023 36:39-46
Akademický článek
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Autor:
Luria, Gianvittorio, Duran, Dunja, Visani, Elisa, Sommariva, Sara, Rotondi, Fabio, Sebastiano, Davide Rossi, Panzica, Ferruccio, Piana, Michele, Sorrentino, Alberto
Publikováno v:
Journal of Neuroscience Methods Volume 312, 15 January 2019, Pages 27-36
Background: Magneto- and Electro-encephalography record the electromagnetic field generated by neural currents with high temporal frequency and good spatial resolution, and are therefore well suited for source localization in the time and in the freq
Externí odkaz:
http://arxiv.org/abs/1808.08086
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 Bayesian model in which the number of objects forming the image is a prior
Externí odkaz:
http://arxiv.org/abs/1807.11287