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Erschienen in:
2014 | OriginalPaper | Buchkapitel
A New Method for Vertical Parallelisation of TAN Learning Based on Balanced Incomplete Block Designs
verfasst von : Anders L. Madsen, Frank Jensen, Antonio Salmerón, Martin Karlsen, Helge Langseth, Thomas D. Nielsen
Erschienen in: Probabilistic Graphical Models
Verlag: Springer International Publishing
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The framework of Bayesian networks is a widely popular formalism for performing belief update under uncertainty. Structure restricted Bayesian network models such as the Naive Bayes Model and Tree-Augmented Naive Bayes (TAN) Model have shown impressive performance for solving classification tasks. However, if the number of variables or the amount of data is large, then learning a TAN model from data can be a time consuming task. In this paper, we introduce a new method for parallel learning of a TAN model from large data sets. The method is based on computing the mutual information scores between pairs of variables given the class variable in parallel. The computations are organised in parallel using balanced incomplete block designs. The results of a preliminary empirical evaluation of the proposed method on large data sets show that a significant performance improvement is possible through parallelisation using the method presented in this paper.