Re: DM: Introductions

[Ronny Kohavi]

Karen> I recently attended a fascinating lecture/demo by Dr. Alfred
Karen> Inselberg, Tel Aviv Univ, at the Univ of Maryland Human
Karen> Computer Interaction Lab regarding "Multidimensional
Karen> visualization with applications to process control and other
Karen> multivariate problems".  He graphically represents data in a
Karen> parallel coordinate system (vs orthogonal) and demonstrates how
Karen> interelationships become visible when manipulating the data.  I
Karen> believe Dr. Inselberg has a patent on a data mining approach
Karen> and software tools exist.  His email was given:
Karen> aiisreal@math.tau.ac.il

I met with him last year and posed the same question of how to
visualize 10,000 rules to a user.  He did not have a simple answer
(nor do I expect one).

As much as I find the area of parallel coordinates fascinating, it
takes users a long time to understand what is in the scene.  That's
one reason why there's a 3-month course at Tel-Aviv univ on this
topic.  There's beautiful theory behind it (e.g., how to pick the
order), but I don't see it becoming mainstream visualization for data
mining/viz.  IMHO, business users will not easily understand this
visualization.

--

   Ronny Kohavi (ronnyk@sgi.com, http://robotics.stanford.edu/~ronnyk)