Search results for key=DeS2005 :
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Refereed full papers (journals, book chapters, international conferences)
2005
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Denny and David McG. Squire,
Visualization of Cluster Changes by Comparing
Self-Organizing Maps,
In Tu Bao Ho, David Cheung and Huan Li eds., The Ninth Pacific-Asia Conference on Knowledge Discovery
and Data Mining (PAKDD '05),
Hanoi, Vietnam, No. 3518 in Lecture Notes in Computer Science, pp. 410-419, Springer-Verlag, 18-20 May 2005.
In this paper we introduce Self-Organizing Map-based
techniques that can reveal structural cluster changes in two related
data sets from different time periods in a way that can explain the new
result in relation to the previous one. These techniques are
demonstrated using a real-world data set from the World Development
Indicators database maintained by the World Bank. The results verify
that the methods are capable of revealing changes in cluster strucure
and membership, corresponding to known changes in economic fortunes of
countries.
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