Search Results for author: Cristina Campi

Found 11 papers, 2 papers with code

AI-FLARES: Artificial Intelligence for the Analysis of Solar Flares Data

no code implementations2 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.

Three-dimensional numerical schemes for the segmentation of the psoas muscle in X-ray computed tomography images

no code implementations10 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.

Segmentation

A comprehensive theoretical framework for the optimization of neural networks classification performance with respect to weighted metrics

no code implementations22 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.

Operational solar flare forecasting via video-based deep learning

no code implementations12 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.

Score-oriented loss (SOL) functions

1 code implementation29 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.

BIG-bench Machine Learning Binary Classification

Oversampling errors in multimodal medical imaging are due to the Gibbs effect

1 code implementation10 Mar 2021 Davide Poggiali, Diego Cecchin, Cristina Campi, Stefano De Marchi

To analyse multimodal 3-dimensional medical images, interpolation is required for resampling which - unavoidably - introduces an interpolation error.

Machine learning as a flaring storm warning machine: Was a warning machine for the September 2017 solar flaring storm possible?

no code implementations5 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.

BIG-bench Machine Learning

Geometry of the Hough transforms with applications to synthetic data

no code implementations4 Apr 2019 Mauro C. Beltrametti, Cristina Campi, Anna Maria Massone, Maria-Laura Torrente

In the framework of the Hough transform technique to detect curves in images, we provide a bound for the number of Hough transforms to be considered for a successful optimization of the accumulator function in the recognition algorithm.

A hybrid supervised/unsupervised machine learning approach to solar flare prediction

no code implementations21 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.

BIG-bench Machine Learning Clustering +2

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