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annotate toolboxes/FullBNT-1.0.7/bnt/inference/online/@hmm_2TBN_inf_engine/backT.m @ 0:cc4b1211e677 tip

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initial commit to HG from Changeset: 646 (e263d8a21543) added further path and more save "camirversion.m"
author Daniel Wolff
date Fri, 19 Aug 2016 13:07:06 +0200
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Daniel@0 1 function b = backT(engine, f, t)
Daniel@0 2
Daniel@0 3 b.t = t;
Daniel@0 4 b.obslik = f.obslik;
Daniel@0 5 Q = length(f.alpha);
Daniel@0 6 b.beta = ones(Q,1);
Daniel@0 7 b.gamma = f.alpha;
Daniel@0 8 if t > 1
Daniel@0 9 bb_t = b.obslik;
Daniel@0 10 b.xi = normalise((engine.transprob .* (f.past_alpha * bb_t'))); % T-1,T
Daniel@0 11 end