Re: DM: AW: Classification problem

 > From: Frank Buckler <buckler@m2.uni-hannover.de>
 >
 > If you are working with a standard DM Software there are two way:
 > 1. duplicate the bad guy 5000times
 > 2. select only the most important examples of the good guys. (or a mix of 1
 > and 2 )
 >
 > Because all this isn't quite practical, the best method is to tackle on the
 > error function of the learning algorithm. Weight the error produced buy
 > misclassification of bad guys 5000 times harden than the error of the good
 > guys.
 >
 > Therefore you need to have inside in the algo. That's the advantage of DM
 > Toolboxes for Software like MATLAB.

Any decent statistical software provides weighting.

--

Warren S. Sarle       SAS Institute Inc.   The opinions expressed here
saswss@unx.sas.com    SAS Campus Drive     are mine and not necessarily
(919) 677-8000        Cary, NC 27513, USA  those of SAS Institute.

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