> > > Date: Mon, 28 Mar 2011 12:55:48 +0200 > From: Francisco Javier Diez <fjd...@dia.uned.es> > To: uai@engr.orst.edu > Subject: Re: [UAI] Example BN model that Junction Tree algorithm not > working with > Message-ID: <4d906934....@dia.uned.es> > Content-Type: text/plain; charset=ISO-8859-1; format=flowed > > Wei Sun wrote: > > > > Dear all, > > > > I am wondering if anybody in the list knows an example BN model for > > which the Junction tree algorithm is not able to solve because of the > > size of the clique. I understand that it is easy to create one. But > > instead, if we have one well-know network in the community, I like to > > use it for the purpose of scalability analysis of some approximate > > algorithms. > > In this paper http://www.cisiad.uned.es/carmen/carmen-pgm08.pdf (see > Section 5) we used Bayesian networks containing three groups of nodes: > (1) a grid of m?n nodes; (2) for every row, a node whose parents are all > the nodes in the row; (3) for every column, a node whose parents are all > the nodes in the column. The size of the biggest clique grows with the > length of the diagonal of the grid. > > Regards, > Javier > > ----------------------------------------------------------------- > Francisco Javier Diez Phone: (+34) 91.398.71.61 > Dpto. Inteligencia Artificial Fax: (+34) 91.398.88.95 > UNED. c/Juan del Rosal, 16 http://www.ia.uned.es/~fjdiez > 28040 Madrid. Spain http://www.cisiad.uned.es > > > ------------------------------ > > Hi Javier,
I saw in your paper that you talk about open source tools for probabilistic graphical models (PGM). I just wanted to point out that UnBBayes ( http://sourceforge.net/projects/unbbayes/) is an open source tool for PGM that started its development back in 2000 and it is still expanding its features (including OOBN, PRM, and MEBN). In the last 2 years it went through a major refactoring to allow easy of extension using plugins. It is the same philosophy applied in Eclipse IDE to allow the community to easily extend its features. A proof of its success is that we have been implementing extensions (plugins) here at George Mason University to UnBBayes without needing any help from the UnBBayes team and without having to change its original source code. We have a chapter on UnBBayes plugin framework in press. If anybody wants to take a look at it I will be glad to send a copy of it. Best regards, Rommel -- Rommel Carvalho PhD Student and GRA @ SEOR/GMU http://mason.gmu.edu/~rcarvalh
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