[R] cluster

From: Weiwei Shi <helprhelp_at_gmail.com>
Date: Tue 26 Jul 2005 - 07:45:12 EST


Dear listers:

Here I have a question on clustering methods available in R. I am trying to down-sampling the majority class in a classification problem on an imbalanced dataset. Since I don't want to lose information in the original dataset, I don't want to use naive down-sampling: I think using clustering on the majority class' side to select
"representative" samples might help. So, my question is, which
clustering method should be tested to get the best result. I think the key thing might be the selection of "distance" considering the next step in which I would like to use decision trees.

Please share your experience in using clustering (Any available implementation outside R is also welcome)

weiwei

-- 
Weiwei Shi, Ph.D


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Received on Tue Jul 26 07:55:26 2005

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