Browsing Artículos (Instituto de Matemáticas de la Universidad de Sevilla (Antonio de Castro Brzezicki)) by Author
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Browsing Artículos (Instituto de Matemáticas de la Universidad de Sevilla (Antonio de Castro Brzezicki)) by Author "Romero Morales, María Dolores"
Now showing items 1-6 of 6
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Article
On Building Online Visualization Maps for News Data Streams by Means of Mathematical Optimization
Carrizosa Priego, Emilio José; Guerrero Lozano, Vanesa; Hardt, Daniel; Romero Morales, María Dolores (Mary Ann Liebert, INC, 2018-06-01)In this article we develop a novel online framework to visualize news data over a time horizon. First, we perform a Natural ...
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Article
On Mathematical Optimization for the visualization of frequencies and adjacencies as rectangular maps
Carrizosa Priego, Emilio José; Guerrero Lozano, Vanesa; Romero Morales, María Dolores (ELSEVIER SCIENCE BV, 2018-02-18)In this paper, we address the problem of visualizing a frequency distribution and an adjacency relation attached to a set ...
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Article
On sparse optimal regression trees
Blanquero Bravo, Rafael; Carrizosa Priego, Emilio José; Molero del Río, María Cristina; Romero Morales, María Dolores (Elsevier, 2021-12-18)In this paper, we model an optimal regression tree through a continuous optimization problem, where a compromise between ...
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Article
Sparsity in optimal randomized classification trees
Blanquero Bravo, Rafael; Carrizosa Priego, Emilio José; Molero Río, Cristina; Romero Morales, María Dolores (ELSEVIER SCIENCE BV, 2019-12-16)Decision trees are popular Classification and Regression tools and, when small-sized, easy to interpret. Traditionally, a ...
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Article
Visualization of complex dynamic datasets by means of mathematical optimization
Carrizosa Priego, Emilio José; Guerrero Lozano, Vanesa; Romero Morales, María Dolores (PERGAMON-ELSEVIER SCIENCE LTD, 2019-07-01)In this paper we propose an optimization model and a solution approach to visualize datasets which are made up of individuals ...
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Article
Visualizing data as objects by DC (difference of convex) optimization
Carrizosa Priego, Emilio José; Guerrero Lozano, Vanesa; Romero Morales, María Dolores (Springer, 2017)In this paper we address the problem of visualizing in a bounded region a set of individuals, which has attached a ...