[Related article:] Genome Research 18: 1314–1324 (2008)
Inferring causal relationships among different histone modifications and gene expression
Hong Yu, Shanshan Zhu, Bing Zhou, Huiling Xue, and Jing-Dong J. Han
The description of Bayesian network inference in the Methods section was inaccurate and only restricted to a special case where each node has at most one parent. In this model, the equation relating the score of a certain network structure to the total weight of all its edges (p. 1322) should be:
Compelled edges exist only in general models, and finding the maximal score is NP-hard.
The authors apologize for any confusion this may have caused.
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