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Computación y Sistemas

Print version ISSN 1405-5546

Comp. y Sist. vol.15 n.1 México Jul./Sep. 2011




Combining Dissimilarities for Three–Way Data Classification


Combinación de disimilitudes para la clasificación de datos de tres vías


Diana Porro Muñoz1,2, Isneri Talavera1, Robert P. W. Duin2, and Mauricio Orozco Alzate3


1 Advanced Technologies Application Center (CENATAV), Cuba.

2 Pattern Recognition Lab., TU Delft, The Netherlands.

3 Universidad Nacional de Colombia Sede Manizales, Colombia. E–mail:,,,


Article received on February 28, 2011.
Accepted on June 30, 2011.



The representation of objects by multidimensional arrays is widely applied in many research areas. Nevertheless, there is a lack of tools to classify data with this structure. In this paper, an approach for classifying objects represented by matrices is introduced, based on the advantages and success of the combination strategy, and particularly in the dissimilarity representation. A procedure for obtaining the new representation of the data has also been developed, aimed at obtaining a more powerful representation. The proposed approach is evaluated on two three–way data sets. This has been done by comparing the different ways of achieving the new representation, and the traditional vector representation of the objects.

Keywords: Classification, three–way data, combination and dissimilarity representation.



La representación de objetos a través de arreglos multidimensionales es ampliamente utilizada en muchas áreas de investigación. Sin embargo, el desarrollo de herramientas para clasificar datos con dicho tipo de estructura ha sido insuficiente. En este trabajo se introduce una metodología para clasificar objetos que son representados por matrices, basada en las ventajas y éxitos de la estrategia de combinación y particularmente en la representación por disimilitudes. También se propone el procedimiento para obtener la nueva representación de los datos. La propuesta realizada en este trabajo se evaluó en dos conjuntos de datos tres–vías. Esta evaluación se realizó mediante la comparación entre las diferentes maneras de obtener la nueva representación, y la representación tradicional de los objetos a través de vectores.

Palabras clave: Clasificación, datos de tres–vías, combinación y representación por disimilitudes.





We acknowledge financial support from the FET programme within the EU FP7, under the project "Similarity–based Pattern Analysis and Recognition– SIMBAD" (contract 213250). We would also like to thank to the project "Cálculo científico para caracterización e identificación en problemas dinámicos" (code Hermes 10722) granted by Universidad Nacional de Colombia.



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