Listar INIT_Articles por autoría "fcb67833-6aaa-4497-9282-a69a652e75dc"
Mostrando ítems 21-32 de 32
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On the use of data filtering techniques for credit risk prediction with instance-based models
García, Vicente; Sánchez Garreta, Josep Salvador; Marqués Marzal, Ana Isabel Elsevier (2012)Many techniques have been proposed for credit risk prediction, from statistical models to artificial intelligence methods. However, very few research efforts have been devoted to deal with the presence of noise and outliers ... -
On the effectiveness of preprocessing methods when dealing with different levels of class imbalance
Sánchez Garreta, Josep Salvador; García, Vicente; Mollineda, Ramón A. Elsevier (2012)The present paper investigates the influence of both the imbalance ratio and the classifier on the performance of several resampling strategies to deal with imbalanced data sets. The study focuses on evaluating how learning ... -
Online reconstruction-free single-pixel image classification
Latorre Carmona, Pedro; Traver Roig, Vicente Javier; Sánchez Garreta, Josep Salvador; Tajahuerce, Enrique Elsevier (2019-04)In single-pixel imaging, a series of illumination patterns are projected onto an object and the reflected or transmitted light from the object is integrated by a photodetector (the single-pixel detector). Then, from the ... -
Ranking-based MCDM models in financial management applications: analysis and emerging challenges
Marqués Marzal, Ana Isabel; García, Vicente; Sánchez Garreta, Josep Salvador Springer (2020)Over the last decades, the academic and professional communities have paid much attention toward the use of multi-criteria decision-making methods in a range of business and financial problems due to the variety and ... -
Revisiting the Dissimilarity Representation in the Context of Regression
García, Vicente; Sánchez Garreta, Josep Salvador; Martínez-Peláez, Rafael; Méndez-González, Luis Carlos IEEE (2021-12-02)In machine learning, a natural way to represent an instance is by using a feature vector. However, several studies have shown that this representation may not accurately characterize an object. For classification problems, ... -
Special Issue on Data Preprocessing in Pattern Recognition: Recent Progress, Trends and Applications
Sánchez Garreta, Josep Salvador; García, Vicente MDPI (2022-09-01) -
Surrounding neighborhood-based SMOTE for learning from imbalanced data sets
García, Vicente; Sánchez Garreta, Josep Salvador; Martín Félez, Raúl; Mollineda, Ramón A. Springer (2012)Many traditional approaches to pattern classifi- cation assume that the problem classes share similar prior probabilities. However, in many real-life applications, this assumption is grossly violated. Often, the ratios ... -
Synergetic Application of Multi-Criteria Decision-Making Models to Credit Granting Decision Problems
García, Vicente; Sánchez Garreta, Josep Salvador; Marqués Marzal, Ana Isabel (2019-11-22)Although various algorithms have widely been studied for bankruptcy and credit risk prediction, conclusions regarding the best performing method are divergent when using different performance assessment metrics. As a ... -
Two-level classifier ensembles for credit risk assessment
Marqués Marzal, Ana Isabel; García, Vicente; Sánchez Garreta, Josep Salvador Elsevier (2012)Many techniques have been proposed for credit risk assessment, from statistical models to artificial intelligence methods. During the last few years, different approaches to classifier ensembles have successfully been ... -
Understanding the apparent superiority of over-sampling through an analysis of local information for class-imbalanced data
García, Vicente; Sánchez Garreta, Josep Salvador; Marqués Marzal, Ana Isabel; Florencia, R.; Rivera, G. Elsevier (2020-11-15)Data plays a key role in the design of expert and intelligent systems and therefore, data preprocessing appears to be a critical step to produce high-quality data and build accurate machine learning models. Over the past ... -
Using regression models for predicting the product quality in a tubing extrusion process
García, Vicente; Sánchez Garreta, Josep Salvador; Rodríguez-Picón, Luis Alberto; Méndez-González, Luis Carlos; Ochoa Domínguez, Humberto de Jesús Springer (2018-05-01)Quality in a manufacturing process implies that the performance characteristics of the product and the process itself are designed to meet specific objectives. Thus, accurate quality prediction plays a principal role in ... -
Weighted Complete Graphs for Condensing Data
Guzmán-Ponce, Angélica; Marcial-Romero, J. Raymundo; Valdovinos Rosas, Rosa María; Sánchez Garreta, Josep Salvador Elsevier B.V. (2020-12-01)In many real-world problems (such as industrial applications, chemistry models, social network analysis, among others), their solution can be obtained by transforming the problem in terms of vertices and edges, that is ...