MATLAB Central Newsreader - classification

classification

ahmed — Sat, 12 Jul 2008 13:37:01 -0400

I have a dataset. i like to classify this data into two
classes (class A, class B).
i devide the data into three parts: training, valdiating,
testing.
i construct trainging model and the testing algorithm i
don't have problem here. for valdition i use (PCA And SVM).
can any one give me an example how to train PCA and use it
for classification.
i know how to use (PCA/SVM) for dimension reduction.

can any one give me another idea

Re: classification

Greg Heath — Sat, 12 Jul 2008 14:06:09 -0400

On Jul 12, 9:37=A0am, "Ahmed " <mogwari2...@yahoo.com> wrote:
> I have a dataset. i like to classify this data into two
> classes (class A, class B).
> i devide the data into three parts: training, valdiating,
> testing.
> i construct trainging model and the testing algorithm i
> don't have problem here. for valdition i use (PCA And SVM).
> can any one give me an example how to train PCA and use it
> for classification.
> i know how to use (PCA/SVM) for dimension reduction.
>
> can any one give me another idea

In general, PCA is not recommended for
classification. Search Google Groups using

greg-heath thin disks

Hope this helps.

Greg

Re: classification

ahmed — Sat, 12 Jul 2008 21:40:03 -0400

thanks for your answer. i found the web site , it seems to
be about Neural Networks!. if i faced with new problems i
well return