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annotate toolboxes/FullBNT-1.0.7/bnt/inference/online/@jtree_2TBN_inf_engine/back1_mpe.m @ 0:e9a9cd732c1e tip

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first hg version after svn
author wolffd
date Tue, 10 Feb 2015 15:05:51 +0000
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wolffd@0 1 function [b, mpe] = back1_mpe(engine, bfuture, f, ev1, t)
wolffd@0 2
wolffd@0 3 if t ~= 1
wolffd@0 4 error('mixed up time stamps')
wolffd@0 5 end
wolffd@0 6 bnet = bnet_from_engine(engine);
wolffd@0 7 ss = bnet.nnodes_per_slice;
wolffd@0 8 maximize = 1;
wolffd@0 9
wolffd@0 10 int = engine.interface;
wolffd@0 11 D = engine.in_clq; % from J2
wolffd@0 12 C = engine.int_clq1; % from J1
wolffd@0 13 phiD = marginalize_pot(bfuture.clpot{D}, int, maximize);
wolffd@0 14 phiC = marginalize_pot(f.clpot{C}, int, maximize);
wolffd@0 15 ratio = divide_by_pot(phiD, phiC);
wolffd@0 16 f.clpot{C} = multiply_by_pot(f.clpot{C}, ratio);
wolffd@0 17
wolffd@0 18 [mpe, b.clpot] = find_max_config(engine.jtree_engine1, f.clpot, f.seppot, ev1);
wolffd@0 19 for c=1:length(b.clpot)
wolffd@0 20 [b.clpot{c}, ll(c)] = normalize_pot(b.clpot{c});
wolffd@0 21 end
wolffd@0 22 b.t = t;