no code implementations • 14 Mar 2024 • Sabrina Guastavino, Katsiaryna Bahamazava, Emma Perracchione, Fabiana Camattari, Gianluca Audone, Daniele Telloni, Roberto Susino, Gianalfredo Nicolini, Silvano Fineschi, Michele Piana, Anna Maria Massone
This study addresses the prediction of geomagnetic disturbances by exploiting machine learning techniques.
no code implementations • 8 Mar 2024 • Fabiana Camattari, Sabrina Guastavino, Francesco Marchetti, Michele Piana, Emma Perracchione
The purpose of this study is to introduce a new approach to feature ranking for classification tasks, called in what follows greedy feature selection.
no code implementations • 2 Jan 2024 • Michele Piana, Federico Benvenuto, Anna Maria Massone, Cristina Campi, Sabrina Guastavino, Francesco Marchetti, Paolo Massa, Emma Perracchione, Anna Volpara
AI-FLARES (Artificial Intelligence for the Analysis of Solar Flares Data) is a research project funded by the Agenzia Spaziale Italiana and by the Istituto Nazionale di Astrofisica within the framework of the ``Attivit\`a di Studio per la Comunit\`a Scientifica Nazionale Sole, Sistema Solare ed Esopianeti'' program.
no code implementations • 10 Dec 2023 • Giulio Paolucci, Isabella Cama, Cristina Campi, Michele Piana
The analysis of the psoas muscle in morphological and functional imaging has proved to be an accurate approach to assess sarcopenia, i. e. a systemic loss of skeletal muscle mass and function that may be correlated to multifactorial etiological aspects.
no code implementations • 22 May 2023 • Francesco Marchetti, Sabrina Guastavino, Cristina Campi, Federico Benvenuto, Michele Piana
In many contexts, customized and weighted classification scores are designed in order to evaluate the goodness of the predictions carried out by neural networks.
no code implementations • 17 May 2023 • Sabrina Guastavino, Valentina Candiani, Alessandro Bemporad, Francesco Marchetti, Federico Benvenuto, Anna Maria Massone, Roberto Susino, Daniele Telloni, Silvano Fineschi, Michele Piana
Coronal Mass Ejections (CMEs) correspond to dramatic expulsions of plasma and magnetic field from the solar corona into the heliosphere.
no code implementations • 12 Sep 2022 • Sabrina Guastavino, Francesco Marchetti, Federico Benvenuto, Cristina Campi, Michele Piana
Operational flare forecasting aims at providing predictions that can be used to make decisions, typically at a daily scale, about the space weather impacts of flare occurrence.
no code implementations • 20 Sep 2021 • Sabrina Guastavino, Michele Piana, Marco Tizzi, Federico Cassola, Antonio Iengo, Davide Sacchetti, Enrico Solazzo, Federico Benvenuto
The problem of nowcasting extreme weather events can be addressed by applying either numerical methods for the solution of dynamic model equations or data-driven artificial intelligence algorithms.
1 code implementation • 29 Mar 2021 • Francesco Marchetti, Sabrina Guastavino, Michele Piana, Cristina Campi
Loss functions engineering and the assessment of forecasting performances are two crucial and intertwined aspects of supervised machine learning.
no code implementations • 4 Mar 2021 • Sabrina Guastavino, Michele Piana, Federico Benvenuto
In this paper we propose a novel approach to realize forecast verification.
no code implementations • 27 Dec 2020 • Emma Perracchione, Paolo Massa, Anna Maria Massone, Michele Piana
Space telescopes for solar hard X-ray imaging provide observations made of sampled Fourier components of the incoming photon flux.
no code implementations • 5 Jul 2020 • Federico Benvenuto, Cristina Campi, Anna Maria Massone, Michele Piana
Machine learning is nowadays the methodology of choice for flare forecasting and supervised techniques, in both their traditional and deep versions, are becoming the most frequently used ones for prediction in this area of space weather.
no code implementations • 3 Apr 2020 • Sara Sommariva, Giacomo Caviglia, Michele Piana
This paper studies a system of Ordinary Differential Equations modeling a chemical reaction network and derives from it a simulation tool mimicking Loss of Function and Gain of Function mutations found in cancer cells.
no code implementations • 18 Feb 2020 • Paolo Massa, Richard Schwartz, A Kim Tolbert, Anna Maria Massone, Brian R Dennis, Michele Piana, Federico Benvenuto
Although widely used in image deconvolution, this method has been formulated in radio astronomy for the analysis of observations in the spatial frequency domain, and an Interactive Data Language (IDL) code has been implemented for image reconstruction from solar X-ray Fourier data.
Image Deconvolution Image Reconstruction +1 Solar and Stellar Astrophysics Instrumentation and Methods for Astrophysics 49N45, 94A08
no code implementations • 24 Jan 2020 • Daniela Schenonea, Rita Lai, Michele Cea, Federica Rossi, Lorenzo Torri, Bianca Bignotti, Giulia Succio, Stefano Gualco, Alessio Conte, Alida Dominietto, Anna Maria Massone, Michele Piana, Cristina Campi, Francesco Frassoni, Gianmario Sambuceti, Alberto Stefano Tagliafico
Multiple Myeloma (MM) is a blood cancer implying bone marrow involvement, renal damages and osteolytic lesions.
no code implementations • 19 Jun 2019 • Francesco Fiz, Helmut Dittmann, Cristina Campi, Matthias Weissinger, Samine Sahbai, Matthias Reimold, Arnulf Stenzl, Michele Piana, Gianmario Sambuceti, Christian la Fougère
SVol was compared with the estimation of a commercial software.
no code implementations • 8 Apr 2019 • Sabrina Guastavino, Michele Piana, Anna Maria Massone, Richard Schwartz, Federico Benvenuto
Image saturation has been an issue for several instruments in solar astronomy, mainly at EUV wavelengths.
no code implementations • 21 Jun 2017 • Federico Benvenuto, Michele Piana, Cristina Campi, Anna Maria Massone
We introduce a hybrid approach to solar flare prediction, whereby a supervised regularization method is used to realize feature importance and an unsupervised clustering method is used to realize the binary flare/no-flare decision.
no code implementations • 8 Mar 2015 • Richard A Schwartz, Gabriele Torre, Anna Maria Massone, Michele Piana
Saturation affects a significant rate of images recorded by the Atmospheric Imaging Assembly on the Solar Dynamics Observatory.