You might want to look at GeNIe, a development environment for
graphical decision-theoretic models developed at Decision Systems
Laboratory, School of Information Sciences and Intelligent Systems
Program, University of Pittsburgh. GeNIe 1.0 is downloadable at
http://www2.sis.pitt.edu/~genie/. Much improvement on the interface
was done to GeNIe 2.0. My work addressed on graphical probability
elicitation and navigation in large CPTs. We developed user-friendly
graphical tools such as probability wheel and scaled probability bar.
With these tools the domain experts can easily input their estimates
of probabilities into CPTs with higher accuracy and in less time
compared to direct numerical eliciataion. We also developed
shrinkable-CPT and CPTree to assist navigation in large CPTs. The
usability test was conducted for evaluation of these graphical tools.
As an example, I'm attaching some pictures of screen snapshot of these
graphical tools here. Further information is available if interested.
[Moderator - I've removed the screenshots, not everyone has high
bandwidth email all the time. Please contact Haiqin for further
information, or maybe s/he can post a URL we can look at]
-Haiqin Wang
graduate student,
Intelligent Systems Program,
University of Pittsburgh
URL: http://www.isp.pitt.edu/~whq
email: whq@isp.pitt.edu
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