[mlpack-git] [mlpack/mlpack] Spill Trees implementation. (#728)

Ryan Curtin notifications at github.com
Fri Jul 22 10:50:16 EDT 2016


I should add, also, I see you commented yesterday you were going to start reimplementing the spill tree for the hyperplane split.  So maybe you've already come up with better ideas than the ones I had on how to do it, but hopefully what I wrote is helpful nonetheless.

Another thought I had is that I think (but am not sure) that it should be possible to build spill trees in such a way that you don't need to duplicate any points in the dataset or hold a set of "spill indices" in each leaf, by cleverly arranging the points in the dataset.  Like for a left child you would hold the spill points at the end of the submatrix and for a right child you would hold the spill points at the beginning of the submatrix.

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