On Cluster Analysis Via Neuron Proximity in Monitored Self-Organizing Maps

Susana Vegas-Azcárate; Jorge Muruzábal

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Paper

On Cluster Analysis Via Neuron Proximity in Monitored Self-Organizing Maps

In Proceedings of the 1st International Workshop on Biosignal Processing and Classification - Volume 0ICINCO, 50-59, 2005 , Barcelona, Spain

Authors: Susana Vegas-Azcárate and Jorge Muruzábal

Affiliation: Statistics and Decision Sciences Group, University Rey Juan Carlos, Spain

Abstract: A potential application of self-organizing or topographic maps is clustering and visualization of high-dimensional data. It is well-known that an appropriate choice of the degree of smoothness in topographic maps is crucial for obtaining sensible results. Indeed, experimental evidence suggests that suitably monitored topographic maps should be preferred as they lead to more accurate performance. This paper reconsiders the basic toolkit for cluster analysis —based on the relative distance from each pointer to its immediate neighbours on the network— from this monitoring perspective. It is shown that the idea works nicely, that is, much useful information can be encoded and recovered via the trained map alone (ignoring any possible density estimate available). Moreover, the fact that a topographic map is not restricted to metric vector spaces makes this learning structure a perfect tool to deal with biological data, such as DNA or protein sequences of living organisms, for which only a similarity measure is readily available. (More)

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Paper citation in several formats:

Vegas-Azcárate, S. and Muruzábal, J. (2005). On Cluster Analysis Via Neuron Proximity in Monitored Self-Organizing Maps. In Proceedings of the 1st International Workshop on Biosignal Processing and Classification (ICINCO 2005) - BPC; ISBN 972-8865-35-X, SciTePress, pages 50-59. DOI: 10.5220/0001192800500059

@conference{bpc05,
author={Susana Vegas{-}Azcárate. and Jorge Muruzábal.},
title={On Cluster Analysis Via Neuron Proximity in Monitored Self-Organizing Maps},
booktitle={Proceedings of the 1st International Workshop on Biosignal Processing and Classification (ICINCO 2005) - BPC},
year={2005},
pages={50-59},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0001192800500059},
isbn={972-8865-35-X},
}

TY - CONF

JO - Proceedings of the 1st International Workshop on Biosignal Processing and Classification (ICINCO 2005) - BPC
TI - On Cluster Analysis Via Neuron Proximity in Monitored Self-Organizing Maps
SN - 972-8865-35-X
AU - Vegas-Azcárate, S.
AU - Muruzábal, J.
PY - 2005
SP - 50
EP - 59
DO - 10.5220/0001192800500059
PB - SciTePress