Mercurial > hg > camir-aes2014
comparison toolboxes/FullBNT-1.0.7/bnt/inference/online/@smoother_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 |
parents | |
children |
comparison
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-1:000000000000 | 0:e9a9cd732c1e |
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1 function [engine, LL] = enter_evidence(engine, ev) | |
2 % ENTER_EVIDENCE Call the offline smoother | |
3 % [engine, loglik] = enter_evidence(engine, evidence, ...) | |
4 % | |
5 % evidence{i,t} = [] if if X(i,t) is hidden, and otherwise contains its observed value (scalar or column vector) | |
6 % | |
7 | |
8 T = size(ev, 2); | |
9 f = cell(1,T); | |
10 b = cell(1,T); % b{t}.clpot{c} | |
11 ll = zeros(1,T); | |
12 [f{1}, ll(1)] = fwd1(engine.tbn_engine, ev(:,1), 1); | |
13 for t=2:T | |
14 [f{t}, ll(t)] = fwd(engine.tbn_engine, f{t-1}, ev(:,t), t); | |
15 end | |
16 LL = sum(ll); | |
17 b{T} = backT(engine.tbn_engine, f{T}, T); | |
18 for t=T-1:-1:1 | |
19 b{t} = back(engine.tbn_engine, b{t+1}, f{t}, t); | |
20 end | |
21 engine.b = b; |