I'd be willing to help code something if I get good specs... we could use
such stuff here also...
Sol ; mindware project co-ordinator @ ZENCOR
http://web.zencor.org/~sol
PUBLIC MESSAGE CENTER : (800) 759-5904 - HOT-LINE : (416) 820-3304
On Wed, 24 Nov 1999, David Poole wrote:
> James Cussens wrote:
> >
> > I've just finished giving a few lectures on join tree propagation, and
> > it struck me that some sort of animated demonstration of how it works
> > would be a lot more illuminating than the static descriptions I have
> > been using. I was thinking of something that eg showed the messages
> > being constructed and absorbed. Most packages that I have looked at
> > quite naturally hide this stuff away - but for teaching you want it
> > made explicit.
> >
> > Before I recruit some unsuspecting student to produce said software as
> > a summer project, I though I had better check that there is not
> > something suitable already.
> >
>
>
> We have some AI teaching demos in Java at:
> http://www.cs.ubc.ca/labs/lci/CIspace/
> These can be run from a web browser.
>
> One of these is a Bayes net evaluation engine that shows variable
> elimination (or bucket elimination). You can see the effect of
> eliminating variables when querying a node, inspect the messages
> (resulting factors), see how evidence is incorporated, etc.
>
> Variable elimination is a good place to start teaching about Bayes net
> evaluation because it's so simple. You can them motivate the join-tree
> propagation as precomputing values and storing the important parts of
> messages, so you can compute the posterior on all variables with just
> two passes.
>
> We would appreciate any feedback on this or the other tools. So far we
> also have a tool showing various search algortihms and one for
> constraint satisfaction. We are developing a neural-network tool, and
> are thinking about others to add.
>
> David
>
> --
> David Poole, Office: +1 (604) 822-6254
> Department of Computer Science, [EMAIL PROTECTED]
> University of British Columbia, http://www.cs.ubc.ca/spider/poole
>
