B-Course: A Web-Based Tool for Bayesian and Causal Data Analysis

Abstract

B-Course is a free web-based online data analysis tool, which allows the users to analyze their data for multivariate probabilistic dependencies. These dependencies are represented as Bayesian network models. In addition to this, B-Course also offers facilities for inferring certain type of causal dependencies from the data. The software uses a novel "tutorial style" user-friendly interface which intertwines the steps in the data analysis with support material that gives an informal introduction to the Bayesian approach adopted. Although the analysis methods, modeling assumptions and restrictions are totally transparent to the user, this transparency is not achieved at the expense of analysis power: with the restrictions stated in the support material, B-Course is a powerful analysis tool exploiting several theoretically elaborate results developed recently in the fields of Bayesian and causal modeling. B-Course can be used with most web-browsers (even Lynx), and the facilities include features such as automatic missing data handling and discretization, a flexible graphical interface for probabilistic inference on the constructed Bayesian network models (for Java enabled browsers), automatic pretty-printed layout for the networks, exportation of the models, and analysis of the importance of the derived dependencies. In this paper we discuss both the theoretical design principles underlying the B-Course tool, and the pragmatic methods adopted in the implementation of the software.

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“…BN learning was performed using the B-course software (Myllymäki et al, 2002) using the simulated annealing algorithm and by maximizing the posterior probability of the model (Deforche et al, 2006). During such a search, the benefit of adding an arc is evaluated against the additional cost of that arc (Deforche et al, 2006).…”

Building a Bayesian Network Model Based on the Combination of Structure Learning Algorithms and Weighting Expert Opinions Scheme

“…B-Course is an analysis tool that was developed in the fields of Bayesian and causal modelling (Mylltmaki et al, 2002). It is a free web-based online data analysis tool, which allows users to analyze data for multivariate probabilistic dependencies.…”

Automatically Building Diagnostic Bayesian Networks from On-line Data Sources and the SMILE Web-based Interface

“…This article reviews only the most relevant subset of non-commercial software applications based on BNs and IDs. B-Course is an analysis tool that was developed in the fields of Bayesian and causal modelling (Mylltmaki et al, 2002). It is a free web-based online data analysis tool, which allows users to analyze data for multivariate probabilistic dependencies.…”