9 papers
Hierarchical Clustering and Matrix Completion for the Reconstruction of World Input-Output Tables
Rodolfo Metulini, Giorgio Gnecco, Francesco Biancalani +1
World Input-Output (I/O) matrices provide the networks of within- and cross-country economic relations. In the context of I/O analysis, the methodology adopted by national statisti…
Matrix Completion of World Trade
Gnecco Giorgio, Nutarelli Federico, Riccaboni Massimo
This work applies Matrix Completion (MC) -- a class of machine-learning methods commonly used in the context of recommendation systems -- to analyse economic complexity. MC is appl…
On principal component analysis of the convex combination of two data matrices and its application to acoustic metamaterial filters
Giorgio Gnecco, Andrea Bacigalupo
In this short paper, a matrix perturbation bound on the eigenvalues found by principal component analysis is investigated, for the case in which the data matrix on which principal…
A Public-Private Insurance Model for Natural Risk Management: an Application to Seismic and Flood Risks on Residential Buildings in Italy
Selene Perazzini, Giorgio Stefano Gnecco, Fabio Pammolli
This paper proposes a public-private insurance scheme for earthquakes and floods in Italy in which property-owners, the insurer and the government co-operate in risk financing. Our…
Machine-learning techniques for the optimal design of acoustic metamaterials
Andrea Bacigalupo, Giorgio Gnecco, Marco Lepidi +1
Recently, an increasing research effort has been dedicated to analyse the transmission and dispersion properties of periodic acoustic metamaterials, characterized by the presence o…
Complex frequency band structure of periodic thermo-diffusive materials by Floquet-Bloch theory
Andrea Bacigalupo, Maria Laura De Bellis, Giorgio Gnecco
This work deals with the micromechanical study of periodic thermo-diffusive elastic multi-layered materials, which are of interest for the fabrication of solid oxide fuel cells (SO…