Bayesian clustering of decomposable graphs

Details Bayesian clustering of decomposable graphs Bayesian clustering of decomposable graphs

2010-05-27

arxiv.org/abs/1005.5081v1

Statistics

Methodology

3 figures, 1 table

Scientific paper

In this paper we propose a class of prior distributions on decomposable graphs, allowing for improved modeling flexibility. While existing methods solely penalize the number of edges, the proposed work empowers practitioners to control clustering, level of separation, and other features of the graph. Emphasis is placed on a particular prior distribution which derives its motivation from the class of product partition models; the properties of this prior relative to existing priors is examined through theory and simulation. We then demonstrate the use of graphical models in the field of agriculture, showing how the proposed prior distribution alleviates the inflexibility of previous approaches in properly modeling the interactions between the yield of different crop varieties.

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