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Hybrid kohonen self organizing map for the uncertainty involved in overlapping clusters using simulated annealing

Mohebi, E. and Sap, M. N. M. (2009) Hybrid kohonen self organizing map for the uncertainty involved in overlapping clusters using simulated annealing. In: 2009 11th International Conference on Computer Modelling and Simulation. Article number 4809737 . IEEE, pp. 53-58. ISBN 978-076953593-7

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Official URL: http://dx.doi.org/10.1109/UKSIM.2009.28

Abstract

The Kohonen self organizing map is widely used as a popular tool in the exploratory phase of data mining. The SOM (Self Organizing Maps) maps high dimensional space into a 2-dimensional grid by placing similar elements close together, forming clusters. Recently research experiments presented that to capture the uncertainty involved in cluster analysis, it is not necessary to have crisp boundaries in some clustering operations. In this paper to overcome the uncertainty, an optimized clustering algorithm based on SOM which employs the rough set theory and the Simulated Annealing as a general technique for optimization problems is proposed. The optimized twolevel stage SA-Rough SOM (Simulated Annealing - Rough Self Organizing Map) (first using SOM to produce the prototypes that are then clustered in the second stage based on the combination of rough set and simulated annealing) is found to perform well and more accurate compared with the crisp clustering methods (i.e. Incremental SOM) and reduces the errors.

Item Type:Book Section
Additional Information:11th International Conference on Computer Modelling and Simulation, UKSim 2009; Cambridge; 25 March 2009 through 27 March 2009
Uncontrolled Keywords:kohonen self-organizing maps, overlapping clusters, simulated annealing
Subjects:Q Science > QA Mathematics > QA75 Electronic computers. Computer science
Divisions:Computer Science and Information System (Formerly known)
ID Code:14870
Deposited By: Ms Zalinda Shuratman
Deposited On:30 Sep 2011 15:12
Last Modified:30 Sep 2011 15:12

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