I have found in some paper(s) (I.e.:“Application of Numenta® Hierarchical Temporal Memory for land-use classification” http://www.scielo.org.za/scielo.php?script=sci_arttext&pid=S0038-23532009000500014 )
that there are different SP algorithms: Gaussian, Dot and Product.
I’m familiar with the JAVA implementation of SP and didn’t find anything related to different SP algorithms.
Can anybody explain this?