camir-aes2014: toolboxes/FullBNT-1.0.7/bnt/inference/online/@jtree_2TBN_inf_engine/back

first hg version after svn

rev	line source
wolffd@0	1 function [b, mpe] = back_mpe(engine, bfuture, f, ev2, t)
wolffd@0	2
wolffd@0	3 if f.t ~= t
wolffd@0	4 error('mixed up time stamps')
wolffd@0	5 end
wolffd@0	6 if t==1
wolffd@0	7 error('should call back1_mpe')
wolffd@0	8 end
wolffd@0	9
wolffd@0	10 maximize = 1;
wolffd@0	11 bnet = bnet_from_engine(engine);
wolffd@0	12 ss = bnet.nnodes_per_slice;
wolffd@0	13
wolffd@0	14 int = engine.interface;
wolffd@0	15 D = engine.in_clq;
wolffd@0	16 C = engine.out_clq;
wolffd@0	17 phiD = marginalize_pot(bfuture.clpot{D}, int, maximize);
wolffd@0	18 phiD = set_domain_pot(phiD, int+ss); % shift to slice 2
wolffd@0	19 phiC = marginalize_pot(f.clpot{C}, int+ss, maximize);
wolffd@0	20 ratio = divide_by_pot(phiD, phiC);
wolffd@0	21 f.clpot{C} = multiply_by_pot(f.clpot{C}, ratio);
wolffd@0	22
wolffd@0	23 [mpe, b.clpot] = find_max_config(engine.jtree_engine, f.clpot, f.seppot, ev2);
wolffd@0	24 mpe = mpe((1:ss)+ss); % extract values for slice 2
wolffd@0	25 for c=1:length(b.clpot)
wolffd@0	26 [b.clpot{c}, ll(c)] = normalize_pot(b.clpot{c});
wolffd@0	27 end
wolffd@0	28 b.t = t;

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