Mercurial > hg > camir-aes2014
annotate toolboxes/FullBNT-1.0.7/bnt/inference/online/@jtree_sparse_2TBN_inf_engine/back1.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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children |
rev | line source |
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wolffd@0 | 1 function b = back1(engine, bfuture, f, 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 |
wolffd@0 | 9 int = engine.interface; |
wolffd@0 | 10 D = engine.in_clq; % from J2 |
wolffd@0 | 11 C = engine.int_clq1; % from J1 |
wolffd@0 | 12 phiD = marginalize_pot(bfuture.clpot{D}, int, engine.maximize); |
wolffd@0 | 13 phiC = marginalize_pot(f.clpot{C}, int, engine.maximize); |
wolffd@0 | 14 ratio = divide_by_pot(phiD, phiC); |
wolffd@0 | 15 f.clpot{C} = multiply_by_pot(f.clpot{C}, ratio); |
wolffd@0 | 16 |
wolffd@0 | 17 [b.clpot, seppot] = distribute_evidence(engine.jtree_engine1, f.clpot, f.seppot); |
wolffd@0 | 18 for c=1:length(b.clpot) |
wolffd@0 | 19 [b.clpot{c}, ll(c)] = normalize_pot(b.clpot{c}); |
wolffd@0 | 20 end |
wolffd@0 | 21 b.t = t; |