Alberto Japón
YOU?
Author Swipe
View article: Optimal probabilistic feature shifts for reclassification in tree ensembles
Optimal probabilistic feature shifts for reclassification in tree ensembles Open
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 rule, to a certain desired class. The method is based on the…
View article: A Mathematical Programming Approach to Optimal Classification Forests
A Mathematical Programming Approach to Optimal Classification Forests Open
This paper introduces Weighted Optimal Classification Forests (WOCFs), a new family of classifiers that takes advantage of an optimal ensemble of decision trees to derive accurate and interpretable classifiers. We propose a novel mathemati…
View article: Multiclass Optimal Classification Trees with SVM-splits
Multiclass Optimal Classification Trees with SVM-splits Open
In this paper we present a novel mathematical optimization-based methodology to construct tree-shaped classification rules for multiclass instances. Our approach consists of building Classification Trees in which, except for the leaf nodes…
View article: A Mathematical Programming approach to Binary Supervised Classification with Label Noise
A Mathematical Programming approach to Binary Supervised Classification with Label Noise Open
In this paper we propose novel methodologies to construct Support Vector Machine -based classifiers that takes into account that label noises occur in the training sample. We propose different alternatives based on solving Mixed Integer Li…
View article: Optimal arrangements of hyperplanes for SVM-based multiclass classification
Optimal arrangements of hyperplanes for SVM-based multiclass classification Open
In this paper, we present a novel approach to construct multiclass classifiers by means of arrangements of hyperplanes. We propose different mixed integer (linear and non linear) programming formulations for the problem using extensions of…