Search Results for author: Umberto Castellani

Found 9 papers, 4 papers with code

Localized Shape Modelling with Global Coherence: An Inverse Spectral Approach

1 code implementation4 Aug 2021 Marco Pegoraro, Simone Melzi, Umberto Castellani, Riccardo Marin, Emanuele Rodolà

In this work, we address this problem by defining a data-driven model upon a family of linear operators (variants of the mesh Laplacian), whose spectra capture global and local geometric properties of the shape at hand.

valid

High-Resolution Augmentation for Automatic Template-Based Matching of Human Models

no code implementations19 Sep 2020 Riccardo Marin, Simone Melzi, Emanuele Rodolà, Umberto Castellani

This augmentation provides an effective workaround for the resolution limitations imposed by the adopted morphable model.

Vocal Bursts Intensity Prediction

Infinite Feature Selection: A Graph-based Feature Filtering Approach

1 code implementation15 Jun 2020 Giorgio Roffo, Simone Melzi, Umberto Castellani, Alessandro Vinciarelli, Marco Cristani

We propose a filtering feature selection framework that considers subsets of features as paths in a graph, where a node is a feature and an edge indicates pairwise (customizable) relations among features, dealing with relevance and redundancy principles.

feature selection

Free energy score space

no code implementations NeurIPS 2009 Alessandro Perina, Marco Cristani, Umberto Castellani, Vittorio Murino, Nebojsa Jojic

Score functions induced by generative models extract fixed-dimension feature vectors from different-length data observations by subsuming the process of data generation, projecting them in highly informative spaces called score spaces.

General Classification

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