Projecting to the first to singular vectors is better. Forming an affinity (rather than distance) matrix and projecting to those coordinations is very interesting.
On Thu, Jun 9, 2011 at 12:25 AM, Lance Norskog <[email protected]> wrote: > I've used multi-dimensional scaling (MDS) in another toolkit to > down-project high-dim vectors to 2d and 3d. What tools for this are > available in Mahout? Random Projection down to 2 dimensions is easy, > but seems unsound. > > -- > Lance Norskog > [email protected] >
