Search Results for author: Giorgio Gnecco

Found 8 papers, 1 papers with code

Counter-example guided inductive synthesis of control Lyapunov functions for uncertain systems

no code implementations17 Mar 2023 Daniele Masti, Filippo Fabiani, Giorgio Gnecco, Alberto Bemporad

We propose a counter-example guided inductive synthesis (CEGIS) scheme for the design of control Lyapunov functions and associated state-feedback controllers for linear systems affected by parametric uncertainty with arbitrary shape.

Principal Component Analysis Applied to Gradient Fields in Band Gap Optimization Problems for Metamaterials

no code implementations4 Apr 2021 Giorgio Gnecco, Andrea Bacigalupo, Francesca Fantoni, Daniela Selvi

In this framework, the present article describes the application of a related unsupervised machine learning technique, namely, principal component analysis, to approximate the gradient of the objective function of a band gap optimization problem for an acoustic metamaterial, with the aim of making the successive application of a gradient-based iterative optimization algorithm faster.

Band Gap BIG-bench Machine Learning

On principal component analysis of the convex combination of two data matrices and its application to acoustic metamaterial filters

no code implementations4 Apr 2021 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 component analysis is performed is a convex combination of two data matrices.

Machine-learning techniques for the optimal design of acoustic metamaterials

no code implementations28 Aug 2019 Andrea Bacigalupo, Giorgio Gnecco, Marco Lepidi, Luigi Gambarotta

Specifically, the feasibility and effectiveness of Radial Basis Function networks and Quasi-Monte Carlo methods for the interpolation of the objective functions of such optimization problems are discussed, and their numerical application to a specific acoustic metamaterial with tetrachiral microstructure is presented.

Band Gap BIG-bench Machine Learning

Heterogeneous causal effects with imperfect compliance: a Bayesian machine learning approach

1 code implementation29 May 2019 Falco J. Bargagli-Stoffi, Kristof De-Witte, Giorgio Gnecco

This paper introduces an innovative Bayesian machine learning algorithm to draw interpretable inference on heterogeneous causal effects in the presence of imperfect compliance (e. g., under an irregular assignment mechanism).

BIG-bench Machine Learning Causal Inference

Estimating Heterogeneous Causal Effects in the Presence of Irregular Assignment Mechanisms

no code implementations13 Aug 2018 Falco J. Bargagli-Stoffi, Giorgio Gnecco

This paper provides a link between causal inference and machine learning techniques - specifically, Classification and Regression Trees (CART) - in observational studies where the receipt of the treatment is not randomized, but the assignment to the treatment can be assumed to be randomized (irregular assignment mechanism).

BIG-bench Machine Learning Causal Inference

Symmetric and antisymmetric properties of solutions to kernel-based machine learning problems

no code implementations27 Jun 2016 Giorgio Gnecco

A particularly interesting instance of supervised learning with kernels is when each training example is associated with two objects, as in pairwise classification (Brunner et al., 2012), and in supervised learning of preference relations (Herbrich et al., 1998).

BIG-bench Machine Learning Binary Classification +1

Cannot find the paper you are looking for? You can Submit a new open access paper.