Hi Gang,
Thank you very much!
> Xiaoyun,
>
> > My question is that if we can only add one regressor of
> variation for
> > the speciafied face category when I focus on the face
> category, and
> > the same for other face categories.
>
> If I understand you correctly, you are concerned about the
> possibility that the variation relative to each face
> category might be highly correlated with each other.
That's right!
>That is a
> legitimate concern because it might have effect about the
> numerical accuracy of the program. On the other hand, if you do
> want to regress out those variations for all categories, you
> may go ahead and modulate all categories, and let the program
> handle the numerical aspects. If the program doesn't whine, you
> should be fine.
> Gang
Could you give me some explanation because I am not sure how to do it?
Thank you very much!
Xiaoyun