Mercurial > hg > camir-aes2014
view toolboxes/FullBNT-1.0.7/bnt/inference/static/@global_joint_inf_engine/find_mpe.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 [mpe, ll] = find_mpe(engine, evidence) % FIND_MPE_GLOBAL Compute the most probable explanation(s) from the global joint % [mpe, ll] = find_mpe(engine, evidence) % % mpe(k,i) is the most probable value of node i in the k'th global mode (cell array) % % We assume all nodes are discrete %engine = global_joint_inf_engine(bnet); bnet = bnet_from_engine(engine); engine = enter_evidence(engine, evidence); S1 = struct(engine); % violate object privacy S2 = struct(S1.jpot); % joint potential prob = max(S2.T(:)); modes = find(S2.T(:) == prob); ens = bnet.node_sizes; onodes = find(~isemptycell(evidence)); ens(onodes) = 1; mpe = ind2subv(ens, modes); for k=1:length(modes) for i=onodes(:)' mpe(k,i) = evidence{i}; end end ll = log(prob); mpe = num2cell(mpe);