[Klustakwik-develop] does splitting work

[Peter N. S. <pet...@st...>]

Hi All,

While I was looking through this, I started to wonder if the current splitting strategy results in useful splits? We don't do much with the TrySplits set in our lab, but it appears the points in the existing cluster are randomly allocated to two different clusters and an M E and C step are then taken. It seems like this will result in the means of the two new clusters being quite close to the old cluster center and each other. 

Would a better strategy be a PC decomposition of the points, then either looking for minima in the empirical distribution of the coordinates of the 1st PC as the place to split, or even just setting them to the mean + - one or two standard deviations?

Peter

P.S. for Ken: do you want to have your new email in the klustakwik-develop mailing list? And Michael, do you want to join? These options available at https://lists.sourceforge.net/lists/listinfo/klustakwik-develop

-- 
Peter N. Steinmetz, M.D.,Ph.D.
Program Director, Neuroengineering
Barrow Neurological Institute
Pet...@st...
602-406-3258
http://steinmetz.org/peter