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Discrete Dynamics in Nature and Society - Volume 2015 2015, Article ID 982495, 5 pages -

Research Article

School of Mathematical Sciences, Shandong Normal University, Jinan 250014, China

School of Mathematical Sciences, Peking University, Bejing 100871, China

Received 15 October 2014; Accepted 6 March 2015

Academic Editor: Bo Yang

Copyright © 2015 Qiang Zhao et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

This paper discusseslocal structure recovery of chain graphs CGs when there exist unobservedor latent variables or after marginalization over observed variables. Under a condition presented in this paper, it is explained which edgesand directions of edges in local structure can be recovered validlyand which cannot after marginalization.





Autor: Qiang Zhao, Panpan Luo, and Qing Xi

Fuente: https://www.hindawi.com/



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