Search Results for author: Francesco Grassi

Found 6 papers, 0 papers with code

On the Sum of Random Samples with Bounded Pareto Distribution

no code implementations3 May 2021 Francesco Grassi, Angelo Coluccia

Heavy-tailed random samples, as well as their sum or average, are encountered in a number of signal processing applications in radar, communications, finance, and natural sciences.

Resource Aware Multifidelity Active Learning for Efficient Optimization

no code implementations9 Jul 2020 Francesco Grassi, Giorgio Manganini, Michele Garraffa, Laura Mainini

Traditional methods for black box optimization require a considerable number of evaluations which can be time consuming, unpractical, and often unfeasible for many engineering applications that rely on accurate representations and expensive models to evaluate.

Active Learning Bayesian Optimization +1

A Time-Vertex Signal Processing Framework

no code implementations5 May 2017 Francesco Grassi, Andreas Loukas, Nathanaël Perraudin, Benjamin Ricaud

An emerging way to deal with high-dimensional non-euclidean data is to assume that the underlying structure can be captured by a graph.

Denoising Video Inpainting

Multilinear Low-Rank Tensors on Graphs & Applications

no code implementations15 Nov 2016 Nauman Shahid, Francesco Grassi, Pierre Vandergheynst

We propose a new framework for the analysis of low-rank tensors which lies at the intersection of spectral graph theory and signal processing.

EEG

Towards stationary time-vertex signal processing

no code implementations22 Jun 2016 Nathanael Perraudin, Andreas Loukas, Francesco Grassi, Pierre Vandergheynst

Graph-based methods for signal processing have shown promise for the analysis of data exhibiting irregular structure, such as those found in social, transportation, and sensor networks.

Denoising

Tracking Time-Vertex Propagation using Dynamic Graph Wavelets

no code implementations21 Jun 2016 Francesco Grassi, Nathanael Perraudin, Benjamin Ricaud

Graph Signal Processing generalizes classical signal processing to signal or data indexed by the vertices of a weighted graph.

Compressive Sensing

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