June 27, 2022 to July 1, 2022
Institute for Fundamental Physics of the Universe
Europe/Rome timezone

Antifragile Persistent Homology using Fisher Information

Jun 29, 2022, 11:00 AM
1h
Aula D (Old SISSA building)

Aula D

Old SISSA building

Speaker

Karthik Viswanathan

Description

Antifragility is a property of systems in which they increase their capability to thrive in the presence of volatility and noise. I will present how persistent homology can be made adaptive by learning the optimal filtration that is resilient to noise in data. This is done by maximizing the Fisher Information among a variational family of filtration parameters using gradient descent. By doing so, we construct an informative persistence diagram and consequently, a compressed summary of the input data that is sensitive to the input parameters. I will illustrate this with a few examples and compare the performance with the other standard filtrations.

Presentation materials