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Authors: André Lourenço and Ana Fred

Affiliation: Instituto de Telecomunicaçoes, IST, Portugal

Abstract: We address the problem of the combination of multiple data partitions, that we call a clustering ensemble. We use a recent clustering approach, known as Spectral Clustering, and the classical K-Means algorithm to produce the partitions that constitute the clustering ensembles. A comparative evaluation of several combination methods is performed by measuring the consistency between the combined data partition and (a) ground truth information, and (b) the clustering ensemble. Two consistency measures are used: (i) an index based on cluster matching between two partitions; and (ii) an information theoretic index exploring the concept of mutual information between data partitions. Results on a variety of synthetic and real data sets show that, while combination results are more robust solutions than individual clusterings, no combination method proves to be a clear winner. Furthermore, without the use of a priori information, the mutual information based measure is not able to systematic ally select the best combination method for each problem, optimality being measured based on ground truth information. (More)

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Paper citation in several formats:
Lourenço, A. and Fred, A. (2004). Comparison of Combination Methods using Spectral Clustering Ensembles. In Proceedings of the 4th International Workshop on Pattern Recognition in Information Systems (ICEIS 2004) - PRIS; ISBN 972-8865-01-5, SciTePress, pages 222-233. DOI: 10.5220/0002688102220233

@conference{pris04,
author={André Louren\c{C}o. and Ana Fred.},
title={Comparison of Combination Methods using Spectral Clustering Ensembles},
booktitle={Proceedings of the 4th International Workshop on Pattern Recognition in Information Systems (ICEIS 2004) - PRIS},
year={2004},
pages={222-233},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0002688102220233},
isbn={972-8865-01-5},
}

TY - CONF

JO - Proceedings of the 4th International Workshop on Pattern Recognition in Information Systems (ICEIS 2004) - PRIS
TI - Comparison of Combination Methods using Spectral Clustering Ensembles
SN - 972-8865-01-5
AU - Lourenço, A.
AU - Fred, A.
PY - 2004
SP - 222
EP - 233
DO - 10.5220/0002688102220233
PB - SciTePress

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