comparison toolboxes/FullBNT-1.0.7/bnt/examples/dynamic/HHMM/Old/mk_arrow_alpha_hhmm3.m @ 0:e9a9cd732c1e tip

first hg version after svn

+% Make the following HHMM
+%
+%     LH                  RH
+%    /                      \
+%   /                        \
+%  LR -> UD -> RL -> DU       RL -> UD -> LR -> DU
+%   \
+%    \
+%     Q1 -> Q2
+%
+% where level 1 is fully interconnected (not shown)
+% level 2 is left-right
+% and each model at level 3 is a 2 state LR shared HMM 
+
+Qsizes = [2 4 2];
+D = 3;
+
+% LEVEL 1
+
+startprob1 = 'ergodic';
+transprob1 = 'ergodic';
+
+
+% LEVEL 2
+
+startprob = zeros(2, 4);
+%        Q1  Q2
+startprob(1, 1) = 1;
+startprob(2, 3) = 1;
+
+transprob = zeros(2, 4, 4);
+transprob(1,:,:) = [0 1 0 0
+		    0 0 1 0
+		    0 0 0 1
+		    0 0 0 1];
+transprob(2,:,:) = [0 0 0 1
+		    1 0 0 0
+		    0 1 0 0
+		    0 0 0 1];
+
+Q2args = {'startprob', startprob, 'transprob', transprob};
+
+% always terminate in state 4 (default)
+% F2args
+
+% LEVEL 3
+
+% Defaults are fine: always start in state 1, left-right model, finish in state 2
+
+
+% OBS LEVEl
+
+chars = ['L', 'l', 'U', 'u', 'R', 'r', 'D', 'd'];
+Osize = length(chars);
+
+obsprob = zeros([4 2 Osize]);
+%       Q2 Q3 O
+obsprob(1, 1, find(chars == 'L')) =  1.0;
+obsprob(1, 2, find(chars == 'l')) =  1.0;
+
+obsprob(2, 1, find(chars == 'U')) =  1.0;
+obsprob(2, 2, find(chars == 'u')) =  1.0;
+
+obsprob(3, 1, find(chars == 'R')) =  1.0;
+obsprob(3, 2, find(chars == 'r')) =  1.0;
+
+obsprob(4, 1, find(chars == 'D')) =  1.0;
+obsprob(4, 2, find(chars == 'd')) =  1.0;
+
+Oargs = {'CPT', obsprob};
+
+
+bnet = mk_hhmm3('Qsizes', Qsizes, 'Osize', Osize', 'discrete_obs', 1, 'Oargs', Oargs, 'Q1args', Q1args, 'Q2args', Q2args);
+
+T = 20;
+usecell = 0;
+evidence = sample_dbn(bnet, T, usecell);      
+%chars(evidence(end,:))
+
+Q1 = 1; Q2 = 2; Q3 = 3; F3 = 4; F2 = 5; obs = 6;
+Qnodes = [Q1 Q2 Q3]; Fnodes = [F2 F3];
+
+pretty_print_hhmm_parse(evidence, Qnodes, Fnodes, obs, chars);
+
+eclass = bnet.equiv_class;
+S=struct(bnet.CPD{eclass(Q2,2)})