Re: CardinalityException in DirichletDriver

[Jeff Eastman]

Because of its non-deterministic nature, Dirichlet is darn hard to test. 
The 2-d tests offer the option of plotting out the points and the models 
and eyeballing the result 
(http://cwiki.apache.org/MAHOUT/dirichlet-process-clustering.html) but 
more rigorous testing and higher order problems in general are needed. 
There was a student on this list last summer who offered some pointed 
suggestions but he did not follow up and I've been under water in a startup.

Ted Dunning wrote:
Because the unit tests were 2-dimensional examples.

On Wed, Jan 13, 2010 at 3:34 PM, Jake Mannix <jake.man...@gmail.com> wrote:

  
Ack, this is bad - why have we not caught this in unit tests?