Liam Paninski, 7/22/03

Classification via integrate-and-fire cells

The title is a little misleading. I'll talk a little about Gaussian process classifiers (GPCs), a nonparametric approach to pattern recognition that has become popular in the machine learning literature recently. My interest in this field was piqued by Zoubin Ghahramani, who pointed out that some of the work I had done with Jonathan Pillow on the estimation of neural encoding models based on integrate-and-fire cells might be applicable to GPCs.

A good source for further information on GPCs (especially on the generalization bounds I mentioned) is here.

I'm expecting the discussion to be brief, since it will be our first after a little midsummer vacation. If there is time/interest left over, I'll say a few words about an interesting statistical trick for showing that no estimator can possibly perform better than the one you have developed. (Sadly, this trick only applies to certain problems.) This idea turns out to have an interesting and unexpected application to the entropy estimation problem.