Sure they will - they can be implemented smartly for the Sparse vector, when they happen to know that the aggregators and combiners are such that zero entries can be skipped.
I think. Devil's in the details. On Wed, Jan 27, 2010 at 12:16 PM, Ted Dunning <ted.dunn...@gmail.com> wrote: > Those don't deal well with sparseness. > > On Wed, Jan 27, 2010 at 12:06 PM, Jake Mannix <jake.man...@gmail.com> > wrote: > > > It seems the better way to do this would be to call MAHOUT-209 methods > > like aggregate(Vector v, BinaryFunction aggregator, BinaryFunction > > combiner) > > > > > > -- > Ted Dunning, CTO > DeepDyve >
