Search Results for author: Patrizio Frosini

Found 10 papers, 1 papers with code

A topological model for partial equivariance in deep learning and data analysis

no code implementations25 Aug 2023 Lucia Ferrari, Patrizio Frosini, Nicola Quercioli, Francesca Tombari

In this article, we propose a topological model to encode partial equivariance in neural networks.

Generalized Permutants and Graph GENEOs

no code implementations29 Jun 2022 Faraz Ahmad, Massimo Ferri, Patrizio Frosini

In this paper we establish a bridge between Topological Data Analysis and Geometric Deep Learning, adapting the topological theory of group equivariant non-expansive operators (GENEOs) to act on the space of all graphs weighted on vertices or edges.

Topological Data Analysis

On the geometric and Riemannian structure of the spaces of group equivariant non-expansive operators

no code implementations3 Mar 2021 Pasquale Cascarano, Patrizio Frosini, Nicola Quercioli, Amir Saki

Group equivariant non-expansive operators have been recently proposed as basic components in topological data analysis and deep learning.

Topological Data Analysis

On the finite representation of group equivariant operators via permutant measures

no code implementations7 Aug 2020 Giovanni Bocchi, Stefano Botteghi, Martina Brasini, Patrizio Frosini, Nicola Quercioli

This result makes available a new method to build linear $G$-equivariant operators in the finite setting.

Position paper: Towards an observer-oriented theory of shape comparison

no code implementations7 Mar 2016 Patrizio Frosini

In this position paper we suggest a possible metric approach to shape comparison that is based on a mathematical formalization of the concept of observer, seen as a collection of suitable operators acting on a metric space of functions.

Position

Combining persistent homology and invariance groups for shape comparison

no code implementations27 Dec 2013 Patrizio Frosini, Grzegorz Jablonski

In many applications concerning the comparison of data expressed by $\mathbb{R}^m$-valued functions defined on a topological space $X$, the invariance with respect to a given group $G$ of self-homeomorphisms of $X$ is required.

G-invariant Persistent Homology

no code implementations4 Dec 2012 Patrizio Frosini

Roughly speaking, the main idea consists in defining persistent homology by means of a set of chains that is invariant under the action of G. In this paper we formalize this idea, and prove the stability of the persistent Betti number functions in G-invariant persistent homology with respect to the natural pseudo-distance d_G.

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