Mercurial > hg > camir-aes2014
comparison toolboxes/FullBNT-1.0.7/bnt/examples/static/Belprop/belprop_loop1_gauss.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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-1:000000000000 | 0:e9a9cd732c1e |
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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, 'discrete', []); | |
12 for i=1:N | |
13 bnet.CPD{i} = gaussian_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', 'max_iter', 20); | |
19 %engines{end+1} = pearl_inf_engine(bnet, 'protocol', 'parallel', 'max_iter', 20, 'filename', ... | |
20 % '/home/eecs/murphyk/matlab/gausspearl.txt', 'tol', 1e-5); | |
21 | |
22 % pearl gaussian does not compute loglik | |
23 [time, engines] = cmp_inference_static(bnet, engines, 'maximize', 0, 'exact', 1, 'observed', [2], ... | |
24 'check_ll', 0, 'singletons_only', 0, 'check_converged', [2]); | |
25 |