Mercurial > hg > camir-aes2014
view toolboxes/FullBNT-1.0.7/bnt/inference/static/@gibbs_sampling_inf_engine/enter_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, loglik] = enter_evidence(engine, evidence) % ENTER_EVIDENCE Add the specified evidence to the network (gibbs_sampling_inf_engine) % [engine, loglik] = enter_evidence(engine, evidence) % % evidence{i} = [] if if X(i) is hidden, and otherwise contains its observed value % % loglik is not computed... we just return a 0 value bnet = bnet_from_engine(engine); engine.hnodes = find(isemptycell(evidence)); engine.onodes = mysetdiff(1:length(evidence), engine.hnodes); engine.evidence = zeros(engine.slice_size, 1); % Reset all counts since they are no longer valid engine.marginal_counts = {}; %engine.state = sample_bnet (bnet, 1, 0); engine.state = cell2num(sample_bnet(bnet)); % For speed, we use a normal (not cell) array. We're making use of % the current restriction to discrete nodes. for i = engine.onodes engine.evidence(i) = evidence{i}; end loglik = 0;