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Bayesian network laboratory producing a broad set of tools for structure learning, analysis, adaptive questionnaires, and dynamic Bayesian networks

Open-source suite of software tools for research and development using graphical models of probability, published by Kansas State University Laboratory for Knowledge Discovery in Databases (KDD)

Very generic and free (LGPL) Belief Network Framework in C++ - supports a broad range of knowledge and dependency types for network variables and clusters of variables

Develops and exploits proprietary Relational Bayesian Modeling (RBM) technology and applications that provide real-time, actionable results from large amounts of dynamic, multi-faceted, ambiguous information.

A data mining software company that has a fully automated data modeling and predictive analytics package.

IKNOW, an interdisciplinary project from the University of Illinois at Urbana-Champaign, helps enhance individuals' ability to access and visualize an organization's knowledge and social capital

Builds and licenses diagnostic software based upon Bayesian Belief Networks for medical, industrial and management applications. Software includes editors/compilers, test/review tools and inference engines embeddable in stand-alone and web-based applications.

Makers of Analytica, visual software tool for creating, analyzing, and communicating quantitative business models.

Windows program for graphical modelling.

Robert Dodier's open source package for distributed, heterogeneous belief networks in Java - allows different conditional distributions