A new research tool for hybrid Bayesian networks using script language

Wei Sun; Cheol Young Park; Rommel Carvalho

doi:10.1117/12.884056

12 May 2011 A new research tool for hybrid Bayesian networks using script language

Wei Sun, Cheol Young Park, Rommel Carvalho

Proceedings Volume 8050, Signal Processing, Sensor Fusion, and Target Recognition XX; 80501Q (2011) https://doi.org/10.1117/12.884056
Event: SPIE Defense, Security, and Sensing, 2011, Orlando, Florida, United States

Abstract

While continuous variables become more and more inevitable in Bayesian networks for modeling real-life applications in complex systems, there are not much software tools to support it. Popular commercial Bayesian network tools such as Hugin, and Netica etc., are either expensive or have to discretize continuous variables. In addition, some free programs existing in the literature, commonly known as BNT, GeNie/SMILE, etc, have their own advantages and disadvantages respectively. In this paper, we introduce a newly developed Java tool for model construction and inference for hybrid Bayesian networks. Via the representation power of the script language, this tool can build the hybrid model automatically based on a well defined string that follows the specific grammars. Furthermore, it implements several inference algorithms capable to accommodate hybrid Bayesian networks, including Junction Tree algorithm (JT) for conditional linear Gaussian model (CLG), and Direct Message Passing (DMP) for general hybrid Bayesian networks with CLG structure. We believe this tool will be useful for researchers in the field.

Citation Download Citation

Wei Sun, Cheol Young Park, and Rommel Carvalho "A new research tool for hybrid Bayesian networks using script language", Proc. SPIE 8050, Signal Processing, Sensor Fusion, and Target Recognition XX, 80501Q (12 May 2011); https://doi.org/10.1117/12.884056

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