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Causal Polytree ---Pearl's classical algorithm(1988)

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Causal Polytree ---Pearl's classical algorithm(1988)


Guangdi Li (view profile)


26 Jan 2010 (Updated )

Pearl's famous causal polytree recover algorithm is implemented here.

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      As a famous sub-structure of Bayesian network, causal polytree is able to recover the causality very efficiently.

       Here, I implement pearl's classical algorithm here for easy using. Details can be seen in Pearl's paper[1].

       To recover general Causal polytree, one can download "Fisher's exact test" in my space for conditional independence test.

       One can start from ControlCenter.m, I add a simple example there for better understanding.

       If there is any question, just let me know, I will response to you as soon as possible.

[1] G. Rebane, J. Pearl, The recovery of causal poly-trees from statistical data, in: Proceedings of the Third Conference on Uncertainty Artificial Intelligence, Seattle, Washington, 1987, pp. 222–228

MATLAB release MATLAB 7.6 (R2008a)
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Comments and Ratings (4)
12 Feb 2010 Guangdi Li

Guangdi Li (view profile)

The function " view(biograph( A ))"
demonstrates the matrix A in the form of nice graph. Indeed, you need that toolbox to visually check the result, instead of checking the produced matrix manually.

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12 Feb 2010 Liviu Vladutu

Your example it relies on a script biograph from Computational Biology tbox....

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01 Feb 2010 Guangdi Li

Guangdi Li (view profile)

sorry about it , I have updated it.

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01 Feb 2010 Sebastien PARIS

IsLeaf function undefined ....

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01 Feb 2010 1.2

update the graph

01 Feb 2010 1.3

update the file "IsLeaf.m", sorry about my carelessness.

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