3 papers
math.OC2025
Exact Matrix Seriation through Mathematical Optimization: Stress and Effectiveness-Based Models
Víctor Blanco, Alfredo Marín, Justo Puerto
Matrix seriation, the problem of permuting the rows and columns of a matrix to uncover latent structure, is a fundamental technique in data science, particularly in the visualizati…
math.OC2024
Optimal probabilistic feature shifts for reclassification in tree ensembles
Víctor Blanco, Alberto Japón, Justo Puerto +1
In this paper we provide a novel mathematical optimization based methodology to perturb the features of a given observation to be re-classified, by a tree ensemble classification r…
math.OC2024
Fixed Topology Minimum-Length Trees with Neighborhoods
Víctor Blanco, Gabriel González, Justo Puerto
In this paper, we introduce the Fixed Topology Minimum-Length Tree with Neighborhood Problem, which aims to embed a rooted tree-shaped graph into a -dimensional metric space whi…