diff toolboxes/FullBNT-1.0.7/bnt/inference/online/@jtree_sparse_2TBN_inf_engine/fwd1.m @ 0:e9a9cd732c1e tip

first hg version after svn
author wolffd
date Tue, 10 Feb 2015 15:05:51 +0000
parents
children
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--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/toolboxes/FullBNT-1.0.7/bnt/inference/online/@jtree_sparse_2TBN_inf_engine/fwd1.m	Tue Feb 10 15:05:51 2015 +0000
@@ -0,0 +1,32 @@
+function [f, logscale] = fwd1(engine, ev, t)
+% Forwards pass for slice 1.
+
+bnet = bnet_from_engine(engine);
+ss = bnet.nnodes_per_slice;
+
+CPDpot = cell(1,ss);
+for n=1:ss
+  fam = family(bnet.dag, n, 1);
+  e = bnet.equiv_class(n, 1);
+  CPDpot{n} = convert_to_pot(bnet.CPD{e}, engine.pot_type, fam(:), ev);
+end       
+f.evidence = ev;
+f.t = t;
+
+pots = CPDpot;
+slice1 = 1:ss;
+CPDclqs = engine.clq_ass_to_node1(slice1);
+
+[f.clpot, f.seppot] =  init_pot(engine.jtree_engine1, CPDclqs, CPDpot, engine.pot_type, engine.observed1);
+[f.clpot, f.seppot] = collect_evidence(engine.jtree_engine1, f.clpot, f.seppot);
+for c=1:length(f.clpot)
+  if isa(f.clpot{c}, 'struct')
+     domain = f.clpot{c}.domain;
+     sizes = f.clpot{c}.sizes;
+     T = f.clpot{c}.T;
+     f.clpot{c} = dpot(domain, sizes, T);
+  end
+  [f.clpot{c}, ll(c)] = normalize_pot(f.clpot{c});
+end
+logscale = ll(engine.root1);
+