I am looking for any GIS software that has Bayesian Network capabilities. Ideally I'd be able to define grid layers as discrete or continuous inputs in to the network and then be able to produce layers based on the predictions of given nodes. I note there are several academic papers that seem to use a variety of different GIS and Bayesian tools but there doesn't seem to be any mention of an integrated solution. I'm starting to think that a solution doesn't exist and I'm going to hack my own solution together.
A tool created for ArcGIS has been done by the University of Queensland and Norsys : (this is a bit dated as was using ArcGIS 9.2)
Norsys software was used:
includes a free demo - http://www.norsys.com/netica.html#free
You can contact the University of Queensland for an update on the subject