Search Results for author: Carlos Ortiz Marrero

Found 8 papers, 1 papers with code

Using Higher-Order Moments to Assess the Quality of GAN-generated Image Features

no code implementations31 Oct 2023 Lorenzo Luzi, Helen Jenne, Ryan Murray, Carlos Ortiz Marrero

The rapid advancement of Generative Adversarial Networks (GANs) necessitates the need to robustly evaluate these models.

The SVD of Convolutional Weights: A CNN Interpretability Framework

no code implementations14 Aug 2022 Brenda Praggastis, Davis Brown, Carlos Ortiz Marrero, Emilie Purvine, Madelyn Shapiro, Bei Wang

Fully connected layers can be studied by decomposing their weight matrices using a singular value decomposition, in effect studying the correlations between the rows in each matrix to discover the dynamics of the map.

Image Classification

Evaluating generative networks using Gaussian mixtures of image features

no code implementations8 Oct 2021 Lorenzo Luzi, Carlos Ortiz Marrero, Nile Wynar, Richard G. Baraniuk, Michael J. Henry

We define a performance measure, which we call WaM, on two sets of images by using Inception-v3 (or another classifier) to featurize the images, estimate two GMMs, and use the restricted $2$-Wasserstein distance to compare the GMMs.

Entanglement Induced Barren Plateaus

no code implementations29 Oct 2020 Carlos Ortiz Marrero, Mária Kieferová, Nathan Wiebe

In particular, we show that quantum neural networks that satisfy a volume-law in the entanglement entropy will give rise to models not suitable for learning with high probability.

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Robust Assessment of Real-World Adversarial Examples

no code implementations24 Nov 2019 Brett Jefferson, Carlos Ortiz Marrero

We explore rigorous, systematic, and controlled experimental evaluation of adversarial examples in the real world and propose a testing regimen for evaluation of real world adversarial objects.

Learning Parameters and Constitutive Relationships with Physics Informed Deep Neural Networks

1 code implementation10 Aug 2018 Alexandre M. Tartakovsky, Carlos Ortiz Marrero, Paris Perdikaris, Guzel D. Tartakovsky, David Barajas-Solano

We employ physics informed DNNs to estimate the unknown space-dependent diffusion coefficient in a linear diffusion equation and an unknown constitutive relationship in a non-linear diffusion equation.

Analysis of PDEs Computational Physics

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