Hybrid associative memories for imbalanced data classification: An experimental study

L. Cleofas-Sánchez, V. García, R. Martín-Félez, R. M. Valdovinos, J. S. Sánchez, O. Camacho-Nieto

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

3 Scopus citations

Abstract

Hybrid associative memories are based on the combination of two well-known associative networks, the lernmatrix and the linear associator, with the aim of taking advantage of their merits and overcoming their limitations. While these models have extensively been applied to information retrieval problems, they have not been properly studied in the framework of classification and even less with imbalanced data. Accordingly, this work intends to give a comprehensive response to some issues regarding imbalanced data classification: (i) Are the hybrid associative models suitable for dealing with this sort of data and, (ii) Does the degree of imbalance affect the performance of these neural classifiers Experiments on real-world data sets demonstrate that independently of the imbalance ratio, the hybrid associative memories perform poorly in terms of area under the ROC curve, but the hybrid associative classifier with translation appears to be the best solution when assessing the true positive rate.

Original languageEnglish
Title of host publicationPattern Recognition - 5th Mexican Conference, MCPR 2013, Proceedings
Pages325-334
Number of pages10
DOIs
StatePublished - 2013
Event5th Mexican Conference on Pattern Recognition, MCPR 2013 - Queretaro, Mexico
Duration: 26 Jun 201329 Jun 2013

Publication series

NameLecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
Volume7914 LNCS
ISSN (Print)0302-9743
ISSN (Electronic)1611-3349

Conference

Conference5th Mexican Conference on Pattern Recognition, MCPR 2013
Country/TerritoryMexico
CityQueretaro
Period26/06/1329/06/13

Keywords

  • Associative Memory
  • Class Imbalance
  • Neural Network

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