Please, 

I would like to know if could anyone indicate references about the
inference with Mixture Graphical Models, like Mixture of Trees (by
Marina Meila-Predoviciu).

I suspect that the assertion ("the inference result of a mixture of
trees is a mixture of the inference of the component trees", page-44,
in Marina's dissertation) may be incorrect, for inference involves not
only a marginalization, but also a conditioning operation.

If this property doesn't hold in the inference with mixture of DAG, is
it practical to apply this kind of model in real-world tasks? The
inference speed may be unsatisfactory.

Best Regards,
Gang LI
2000-03-23
_______________________________________________________________________
Email: [EMAIL PROTECTED]
Department of Computer Science         Institute of Software
Shanghai University                    Chinese Academy of Sciences
149#, Yan Chang Road                   4#, 4th Road South Zhongguancun
Shanghai 200072, P.R.China             Beijing 100080, P.R.China


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