2002 BayesianTreedModels

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Subject Headings: Bayesian Tree Modeling Algorithm.

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Abstract

When simple parametric models such as linear regression fail to adequately approximate a relationship across an entire set of data, an alternative may be to consider a partition of the data, and then use a separate simple model within each subset of the partition. Such an alternative is provided by a treed model which uses a binary tree to identify such a partition. However, treed models go further than conventional trees (e.g. CART, C4.5) by fitting models rather than a simple mean or proportion within each subset. In this paper, we propose a Bayesian approach for finding and fitting parametric treed models, in particular focusing on Bayesian treed regression. The potential of this approach is illustrated by a cross-validation comparison of predictive performance with neural nets, MARS, and conventional trees on simulated and real data sets.

References

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 AuthorvolumeDate ValuetitletypejournaltitleUrldoinoteyear
2002 BayesianTreedModelsHugh A. Chipman
Edward I. George
Robert E. McCulloch
Bayesian Treed Models10.1023/A:10139161074462002