Mercurial > hg > camir-aes2014
view toolboxes/FullBNT-1.0.7/bnt/inference/static/@jtree_inf_engine/Old/distribute_evidence.m @ 0:e9a9cd732c1e tip
first hg version after svn
author | wolffd |
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date | Tue, 10 Feb 2015 15:05:51 +0000 |
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function engine = distribute_evidence(engine, root) if isempty(engine.preorder{root}) % this is the first time we have distributed from this root % memoize the order [jtree, preorder, postorder] = mk_rooted_tree(engine.jtree, root); preorder_children = cell(1,length(preorder)); for n=preorder preorder_children{n} = children(jtree, n); end engine.preorder{root} = preorder; engine.preorder_children{root} = preorder_children; else preorder = engine.preorder{root}; preorder_children = engine.preorder_children{root}; end % distribute from root (node to children) for n=preorder(:)' for c=preorder_children{n}(:)' engine.clpot{c} = divide_by_pot(engine.clpot{c}, engine.seppot{n,c}); engine.seppot{n,c} = marginalize_pot(engine.clpot{n}, engine.separator{n,c}, engine.maximize); engine.clpot{c} = multiply_by_pot(engine.clpot{c}, engine.seppot{n,c}); end end