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Diffstat (limited to 'sourcecodes/bnt-master/BNT/examples/dynamic/chmm1.m')
| -rw-r--r-- | sourcecodes/bnt-master/BNT/examples/dynamic/chmm1.m | 41 |
1 files changed, 41 insertions, 0 deletions
diff --git a/sourcecodes/bnt-master/BNT/examples/dynamic/chmm1.m b/sourcecodes/bnt-master/BNT/examples/dynamic/chmm1.m new file mode 100644 index 00000000..10df79d8 --- /dev/null +++ b/sourcecodes/bnt-master/BNT/examples/dynamic/chmm1.m @@ -0,0 +1,41 @@ +% Compare the speeds of various inference engines on a coupled HMM + +N = 3; +Q = 2; +rand('state', 0); +randn('state', 0); +discrete = 0; +if discrete + Y = 2; % size of output alphabet +else + Y = 3; % size of observed vectors +end +coupled = 1; +bnet = mk_chmm(N, Q, Y, discrete, coupled); +%bnet = mk_fhmm(N, Q, Y, discrete); % factorial HMM +ss = length(bnet.node_sizes_slice); + +T = 3; + +USEC = exist('@jtree_C_inf_engine/collect_evidence','file'); + +engine = {}; +engine{end+1} = jtree_dbn_inf_engine(bnet); +%engine{end+1} = jtree_ndx_dbn_inf_engine(bnet, 'ndx_type', 'SD'); +%engine{end+1} = jtree_ndx_dbn_inf_engine(bnet, 'ndx_type', 'D'); +%engine{end+1} = jtree_ndx_dbn_inf_engine(bnet, 'ndx_type', 'B'); +if USEC, engine{end+1} = jtree_C_dbn_inf_engine(bnet); end +engine{end+1} = hmm_inf_engine(bnet); +engine{end+1} = jtree_unrolled_dbn_inf_engine(bnet, T); + +% times in matlab N=4 Q=4 T=5 (* = winner) +% jtree SD B hmm dhmm unrolled +% 0.6266 1.1563 8.3815 0.3069 0.1948* 0.8654 inf +% 0.9057* 2.1522 12.6314 2.6847 2.3107 3.1905 learn + +%engine{end+1} = bk_inf_engine(bnet, 'ff', onodes); +%engine{end+1} = pearl_unrolled_dbn_inf_engine(bnet, T); + +inf_time = cmp_inference_dbn(bnet, engine, T) +learning_time = cmp_learning_dbn(bnet, engine, T) + |