Clustering breast cancer data by consensus of different validity indices

Soria, Daniele and Garibaldi, Jonathan M. and Ambrogi, Federico and Lisboa, Paulo J.G. and Boracchi, Patrizia and Biganzoli, Elia M. (2008) Clustering breast cancer data by consensus of different validity indices. In: International Conference on Advances in Medical, Signal and Information Processing (4th), 14-16 July 2008, Santa Margherita Ligure, Italy.

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Abstract

Clustering algorithms will, in general, either partition a given data set into a pre-specified number of clusters or will produce a hierarchy of clusters. In this paper we analyse several different clustering techniques and apply them to a particular data set of breast cancer data. When we do not know a priori which is the best number of groups, we use a range of different validity indices to test the quality of clustering results and to determine the best number of clusters. While for the K-means method there is not absolute agreement among the indices as to which is the best number of clusters, for the PAM algorithm all the indices indicate 4 as the best cluster number.

Item Type: Conference or Workshop Item (Paper)
Additional Information: Published in: 4th IET International Conference on Advances in Medical, Signal and Information Processing, 2008: MEDSIP 2008. IEEE, 2008. ISBN: 978-0-86341-934-8. © 2008 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.
Keywords: Clustering algorithms, Breast cancer, Validity indices
Schools/Departments: University of Nottingham UK Campus > Faculty of Science > School of Computer Science
Depositing User: Soria, Dr Daniele
Date Deposited: 18 Mar 2015 12:33
Last Modified: 25 Sep 2016 14:15
URI: http://eprints.nottingham.ac.uk/id/eprint/28148

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