Mercurial > hg > camir-aes2014
comparison toolboxes/FullBNT-1.0.7/bnt/examples/static/Belprop/belprop_loop1_discrete.m @ 0:e9a9cd732c1e tip
first hg version after svn
author | wolffd |
---|---|
date | Tue, 10 Feb 2015 15:05:51 +0000 |
parents | |
children |
comparison
equal
deleted
inserted
replaced
-1:000000000000 | 0:e9a9cd732c1e |
---|---|
1 % Compare different loopy belief propagation algorithms on a graph with a single loop. | |
2 % LBP should give exact results if it converges. | |
3 | |
4 N = 4; | |
5 dag = zeros(N,N); | |
6 C = 1; S = 2; R = 3; W = 4; | |
7 dag(C,[R S]) = 1; | |
8 dag(R,W) = 1; | |
9 dag(S,W)=1; | |
10 ns = 2*ones(1,N); | |
11 bnet = mk_bnet(dag, ns); | |
12 for i=1:N | |
13 bnet.CPD{i} = tabular_CPD(bnet, i); | |
14 end | |
15 | |
16 engines = {}; | |
17 engines{end+1} = jtree_inf_engine(bnet); | |
18 engines{end+1} = pearl_inf_engine(bnet, 'protocol', 'parallel'); | |
19 engines{end+1} = belprop_fg_inf_engine(bnet_to_fgraph(bnet)); | |
20 engines{end+1} = belprop_inf_engine(bnet, 'protocol', 'parallel'); | |
21 | |
22 % belprop_fg does not support marginal_family | |
23 % belprop_fg and belprop do not support loglik even on discrete | |
24 [time, engines] = cmp_inference_static(bnet, engines, 'maximize', 0, 'exact', 1, 'observed', 2, ... | |
25 'check_ll', 0, 'singletons_only', 1, 'check_converged', 2:4); | |
26 |