Search Results for author: Rocio Gonzalez-Diaz

Found 11 papers, 3 papers with code

SIMAP: A simplicial-map layer for neural networks

no code implementations22 Mar 2024 Rocio Gonzalez-Diaz, Miguel A. Gutiérrez-Naranjo, Eduardo Paluzo-Hidalgo

In this paper, we present SIMAP, a novel layer integrated into deep learning models, aimed at enhancing the interpretability of the output.

A Topological Approach to Measuring Training Data Quality

no code implementations4 Jun 2023 Álvaro Torras-Casas, Eduardo Paluzo-Hidalgo, Rocio Gonzalez-Diaz

Data quality is crucial for the successful training, generalization and performance of artificial intelligence models.

Trainable and Explainable Simplicial Map Neural Networks

1 code implementation29 May 2023 Eduardo Paluzo-Hidalgo, Miguel A. Gutiérrez-Naranjo, Rocio Gonzalez-Diaz

In this paper, we overcome these issues by proposing an SMNN training procedure based on a support subset of the given dataset and replacing the construction of the convex polytope by a method based on projections to a hypersphere.

Emotion recognition in talking-face videos using persistent entropy and neural networks

1 code implementation26 Oct 2021 Eduardo Paluzo-Hidalgo, Guillermo Aguirre-Carrazana, Rocio Gonzalez-Diaz

The automatic recognition of a person's emotional state has become a very active research field that involves scientists specialized in different areas such as artificial intelligence, computer vision or psychology, among others.

Emotion Recognition

Summary and Distance between Sets of Texts based on Topological Data Analysis

no code implementations19 Dec 2019 Eduardo Paluzo-Hidalgo, Rocio Gonzalez-Diaz, Miguel A. Gutiérrez-Naranjo

In this paper, we use topological data analysis (TDA) tools such as persistent homology, persistent entropy and bottleneck distance, to provide a {\it TDA-based summary} of any given set of texts and a general method for computing a distance between any two literary styles, authors or periods.

Topological Data Analysis

Topological signature for periodic motion recognition

no code implementations11 Apr 2019 Javier Lamar-Leon, Rocio Gonzalez-Diaz, Edel Garcia-Reyes

In this paper, we present an algorithm that computes the topological signature for a given periodic motion sequence.

Gait Recognition

Topology-based Representative Datasets to Reduce Neural Network Training Resources

1 code implementation20 Mar 2019 Rocio Gonzalez-Diaz, Miguel A. Gutiérrez-Naranjo, Eduardo Paluzo-Hidalgo

We prove that the accuracy of the learning process of a neural network on a representative dataset is "similar" to the accuracy on the original dataset when the neural network architecture is a perceptron and the loss function is the mean squared error.

Computational Efficiency

Topological Tracking of Connected Components in Image Sequences

no code implementations3 Jan 2018 Rocio Gonzalez-Diaz, Maria-Jose Jimenez, Belen Medrano

In this paper, taking as input a time-varying sequence of two-dimensional (2D) binary digital images, we develop an algorithm for encoding, in the so-called {\it spatiotemporal barcode}, lifetime of connected components (of either the foreground or background) that are moving in the image sequence over time (this information may not coincide with the one provided by the persistence barcode).

valid

Removal and Contraction Operations in $n$D Generalized Maps for Efficient Homology Computation

no code implementations14 Mar 2014 Guillaume Damiand, Rocio Gonzalez-Diaz, Samuel Peltier

In this paper, we show that contraction operations preserve the homology of $n$D generalized maps, under some conditions.

3D Well-composed Polyhedral Complexes

no code implementations12 Mar 2014 Rocio Gonzalez-Diaz, Maria-Jose Jimenez, Belen Medrano

A binary three-dimensional (3D) image $I$ is well-composed if the boundary surface of its continuous analog is a 2D manifold.

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