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14 results on '"Acosta-Medina, Carlos D."'

2. Quadratic Problem Formulation with Linear Constraints for Normalized Cut Clustering

Author

Peluffo-Ordóñez, D. H., Castro-Hoyos, C., Acosta-Medina, Carlos D., Castellanos-Domínguez, Germán, Hutchison, David, Series editor, Kanade, Takeo, Series editor, Kittler, Josef, Series editor, Kleinberg, Jon M., Series editor, Kobsa, Alfred, Series editor, Mattern, Friedemann, Series editor, Mitchell, John C., Series editor, Naor, Moni, Series editor, Nierstrasz, Oscar, Series editor, Pandu Rangan, C., Series editor, Steffen, Bernhard, Series editor, Terzopoulos, Demetri, Series editor, Tygar, Doug, Series editor, Weikum, Gerhard, Series editor, Bayro-Corrochano, Eduardo, editor, and Hancock, Edwin, editor

Published
2014
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3. Spectral Correlation Measure for Selecting Intrinsic Mode Functions

Author

Sierra-Alonso, Edgar F., Cardona-Morales, Oscar, Acosta-Medina, Carlos D., Castellanos-Dominguez, German, Hutchison, David, Series editor, Kanade, Takeo, Series editor, Kittler, Josef, Series editor, Kleinberg, Jon M., Series editor, Kobsa, Alfred, Series editor, Mattern, Friedemann, Series editor, Mitchell, John C., Series editor, Naor, Moni, Series editor, Nierstrasz, Oscar, Series editor, Pandu Rangan, C., Series editor, Steffen, Bernhard, Series editor, Terzopoulos, Demetri, Series editor, Tygar, Doug, Series editor, Weikum, Gerhard, Series editor, Bayro-Corrochano, Eduardo, editor, and Hancock, Edwin, editor

Published
2014
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4. Stationary Signal Separation Using Multichannel Local Segmentation

Author

Castro-Hoyos, C., Grisales-Franco, F. M., Martínez-Vargas, J. D., Acosta-Medina, Carlos D., Castellanos-Domínguez, Germán, Hutchison, David, Series editor, Kanade, Takeo, Series editor, Kittler, Josef, Series editor, Kleinberg, Jon M., Series editor, Kobsa, Alfred, Series editor, Mattern, Friedemann, Series editor, Mitchell, John C., Series editor, Naor, Moni, Series editor, Nierstrasz, Oscar, Series editor, Pandu Rangan, C., Series editor, Steffen, Bernhard, Series editor, Terzopoulos, Demetri, Series editor, Tygar, Doug, Series editor, Weikum, Gerhard, Series editor, Bayro-Corrochano, Eduardo, editor, and Hancock, Edwin, editor

Published
2014
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13. PARAMETER SELECTION IN LEAST SQUARES-SUPPORT VECTOR MACHINES REGRESSION ORIENTED, USING GENERALIZED CROSS-VALIDATION

Author

ÁLVAREZ MEZA, ANDRÉS M., DAZA SANTACOLOMA, GENARO, ACOSTA MEDINA, CARLOS D., and CASTELLANOS DOMÍNGUEZ, GERMÁN

Subjects
multidimensional generalized cross validation, least squares-support vector machines, mínimos cuadrados-máquinas de vectores de soporte, parameter selection, validación cruzada generalizada multidimensional, regression, selección de parámetros, regresión
Abstract

In this work, a new methodology for automatic selection of the free parameters in the least squares-support vector machines (LS-SVM) regression oriented algorithm is proposed. We employ a multidimensional generalized cross-validation analysis in the linear equation system of LS-SVM. Our approach does not require prior knowledge about the influence of the LS-SVM free parameters in the results. The methodology is tested on two artificial and two real-world data sets. According to the results, our methodology computes suitable regressions with competitive relative errors. En este trabajo, se propone una metodología para la selección automática de los parámetros libres de la técnica de regresión basada en mínimos cuadrados máquinas de vectores de soporte (LS-SVM), a partir de un análisis de validación cruzada generalizada multidimensional sobre el conjunto de ecuaciones lineales de LS-SVM. La técnica desarrollada no requiere de un conocimiento a priori por parte del usuario acerca de la influencia de los parámetros libres en los resultados. Se realizan experimentos sobre dos bases de datos artificiales y dos bases de datos reales. De acuerdo a los resultados obtenidos, se concluye que el algoritmo desarrollado calcula regresiones apropiadas con errores relativos competentes.

Published
2012

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