Search Results for author: Marco Letizia

Found 9 papers, 4 papers with code

Refereeing the Referees: Evaluating Two-Sample Tests for Validating Generators in Precision Sciences

no code implementations24 Sep 2024 Samuele Grossi, Marco Letizia, Riccardo Torre

We propose a robust methodology to evaluate the performance and computational efficiency of non-parametric two-sample tests, specifically designed for high-dimensional generative models in scientific applications such as in particle physics.

Computational Efficiency

Multiple testing for signal-agnostic searches of new physics with machine learning

1 code implementation22 Aug 2024 Gaia Grosso, Marco Letizia

In this work, we address the question of how to enhance signal-agnostic searches by leveraging multiple testing strategies.

Model Selection

Goodness of fit by Neyman-Pearson testing

1 code implementation23 May 2023 Gaia Grosso, Marco Letizia, Maurizio Pierini, Andrea Wulzer

The Neyman-Pearson strategy for hypothesis testing can be employed for goodness of fit if the alternative hypothesis is selected from data by exploring a rich parametrised family of models, while controlling the impact of statistical fluctuations.

Comparative Study of Coupling and Autoregressive Flows through Robust Statistical Tests

1 code implementation23 Feb 2023 Andrea Coccaro, Marco Letizia, Humberto Reyes-Gonzalez, Riccardo Torre

Normalizing Flows have emerged as a powerful brand of generative models, as they not only allow for efficient sampling of complicated target distributions, but also deliver density estimation by construction.

Density Estimation

CaloMan: Fast generation of calorimeter showers with density estimation on learned manifolds

1 code implementation23 Nov 2022 Jesse C. Cresswell, Brendan Leigh Ross, Gabriel Loaiza-Ganem, Humberto Reyes-Gonzalez, Marco Letizia, Anthony L. Caterini

Precision measurements and new physics searches at the Large Hadron Collider require efficient simulations of particle propagation and interactions within the detectors.

Density Estimation

Efficient Unsupervised Learning for Plankton Images

no code implementations14 Sep 2022 Paolo Didier Alfano, Marco Rando, Marco Letizia, Francesca Odone, Lorenzo Rosasco, Vito Paolo Pastore

We compare our method with state-of-the-art unsupervised approaches, where a set of pre-defined hand-crafted features is used for clustering of plankton images.

Clustering

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