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A computational algebraic-geometry method for conditional-independence inference |
Benchong LI, Shoufeng CAI, Jianhua GUO() |
Key Laboratory for Applied Statistics of MOE and School of Mathematics and Statistics, Northeast Normal University, Changchun 130024, China |
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Abstract We consider the problems of semi-graphoid inference and of independence implication from a set of conditional-independence statements. Based on ideas from R. Hemmecke et al. [Combin. Probab. Comput., 2008, 17: 239-257], we present algebraic-geometry characterizations of these two problems, and propose two corresponding algorithms. These algorithms can be realized with any computer algebra system when the number of variables is small.
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Keywords
Conditional independence
independence implication
radical membership
semi-graphoid inference
structural imset
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Corresponding Author(s):
GUO Jianhua,Email:jhguo@nenu.edu.cn
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Issue Date: 01 June 2013
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