On Mon, Aug 30, 2010 at 9:44 AM, Ted Dunning <[email protected]> wrote:
> Metaphorically speaking if user x search term is A and user x item is B, > then transpose(B) * B is item x item, transpose(A) * B) is search term x > search term and transpose(B)*A is item x search-term. > And in fact, this is one map-reduce job in Mahout, as A.times(B) for DistributedRowMatrices A, B performs exactly transpose(A) * B. -jake
