comparison toolboxes/FullBNT-1.0.7/bnt/examples/dynamic/bat1.m @ 0:e9a9cd732c1e tip

first hg version after svn

+% Compare the speeds of various inference engines on the BAT DBN
+[bnet, names] = mk_bat_dbn;
+
+T = 3; % fixed length sequence - we make it short just for speed
+
+USEC = exist('@jtree_C_inf_engine/collect_evidence','file');
+
+disp('constructing engines for BAT');
+engine = {}; % time in seconds for inference
+engine{end+1} = jtree_unrolled_dbn_inf_engine(bnet, T, 'useC', USEC);  % 0.39
+engine{end+1} = smoother_engine(jtree_2TBN_inf_engine(bnet)); % 4.89
+engine{end+1} = jtree_dbn_inf_engine(bnet); % 4.45
+if 0
+engine{end+1} = jtree_ndx_dbn_inf_engine(bnet, 'ndx_type', 'SD'); % 2.98
+engine{end+1} = jtree_ndx_dbn_inf_engine(bnet, 'ndx_type', 'D'); % 3.52
+engine{end+1} = jtree_ndx_dbn_inf_engine(bnet, 'ndx_type', 'B'); % 2.40
+if USEC, engine{end+1} = jtree_C_dbn_inf_engine(bnet); end % 3.54
+%engine{end+1} = hmm_inf_engine(bnet, onodes); % too big
+end
+
+%tic; engine{end+1} = frontier_inf_engine(bnet); toc % very slow
+% The frontier engine thrashes badly on the BAT network
+%tic; engine{end+1} = bk_inf_engine(bnet, 'exact', onodes); toc  % SLOW!
+
+%tic; engine{end+1} = bk_inf_engine(bnet, 'ff', onodes); toc
+
+%clusters{1} = [stringmatch({'LeftClr', 'RightClr', 'LatAct', 'Xdot', 'InLane'}, names)];
+%clusters{2} = [stringmatch({'FwdAct', 'Ydot', 'Stopped', 'EngStatus', 'FBStatus'}, names)];      
+
+%tic; engine{end+1} = bk_inf_engine(bnet, clusters, onodes); toc
+
+disp('inference')
+time = cmp_inference_dbn(bnet, engine, T)
+
+disp('learning')
+time = cmp_learning_dbn(bnet, engine, T)
+
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