AND/OR search spaces for graphical models
نویسندگان
چکیده
منابع مشابه
AND/OR search spaces for graphical models
The paper introduces an AND/OR search space perspective for graphical models that include probabilistic networks (directed or undirected) and constraint networks. In contrast to the traditional (OR) search space view, the AND/OR search tree displays some of the independencies present in the graphical model explicitly and may sometimes reduce the search space exponentially. Indeed, most algorith...
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The paper introduces a family of approximate schemes that extend the process of computing sample mean in importance sampling from the conventional OR space to the AND/OR search space for graphical models. All the sample means are defined on the same set of samples and trade time with variance. At one end is the AND/OR sample tree mean which has the same time complexity as the conventional OR sa...
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ژورنال
عنوان ژورنال: Artificial Intelligence
سال: 2007
ISSN: 0004-3702
DOI: 10.1016/j.artint.2006.11.003