% Make the HHMM in Figure 1 of the NIPS'01 paperQsize = [2 3 2];Qnodes = 1:3;D = 3;transprob = cell(1,D);termprob = cell(1,D);startprob = cell(1,D);clear A;% transproboxuvhir(i,k,j), transprob{1}(i,j)% termprobiykhpjo(k,j), termprob{1}(1,j)% startprobcxqyvlq(k,j), startprob{1}(1,j)% LEVEL 1%       1 2 eA{1} = [0 0 1;	0 0 1];[transprob{1}, termprob{1}] = remove_hhmm_end_state(A{1});startprob{1} = [0.5 0.5];% LEVEL 2A{2} = zeros(Qsize(2), Qsize(1), Qsize(2)+1);%              1 2 3 eA{2}(:,1,:) = [0 1 0 0  % Q1=1 => model below state 0	       0 0 1 0	       0 0 0 1];%              1 2 3 eA{2}(:,2,:) = [0 1 0 0 % Q1=2 => model below state 1	       0 0 1 0	       0 0 0 1];[transprob{2}, termprob{2}] = remove_hhmm_end_state(A{2});	       % always enter level 2 in state 1startprob{2} = [1 0 0		1 0 0];% LEVEL 3A{3} = zeros([Qsize(3) Qsize(2) Qsize(3)+1]);endstate = Qsize(3)+1;%    Qt-1(3) Qt(2) Qt(3)%                        1   2   eA{3}(1,      1,    endstate) = 1.0; % Q2=1 => model below state 2/5A{3}(:,      2,    :) = [0.0 1.0 0.0 % Q2=2 => model below state 3/6            	         0.5 0.0 0.5]; A{3}(1,      3,    endstate) = 1.0; % Q2=3 => model below state 4/7[transprob{3}, termprob{3}] = remove_hhmm_end_state(A{3});	       startprob{3} = 'leftstart';% OBS LEVElchars = ['a', 'b', 'c', 'd', 'x', 'y'];Osize = length(chars);obsprob = zeros([Qsize Osize]);%       1 2 3 Oobsprob(1,1,1,find(chars == 'a')) =  1.0;obsprob(1,2,1,find(chars == 'x')) =  1.0;obsprob(1,2,2,find(chars == 'y')) =  1.0;obsprob(1,3,1,find(chars == 'b')) =  1.0;obsprob(2,1,1,find(chars == 'c')) =  1.0;obsprob(2,2,1,find(chars == 'x')) =  1.0;obsprob(2,2,2,find(chars == 'y')) =  1.0;obsprob(2,3,1,find(chars == 'd')) =  1.0;Oargs = {'CPT', obsprob};bnet = mk_hhmm('Qsizes', Qsize, 'Osize', Osize, 'discrete_obs', 1, ...	       'Oargs', Oargs, 'Ops', Qnodes(1:3), ...	       'startprob', startprob, 'transprob', transprob, 'termprob', termprob);Q1 = 1; Q2 = 2; Q3 = 3; F3 = 4; F2 = 5; Onode = 6;Qnodes = [Q1 Q2 Q3]; Fnodes = [F2 F3];for seqi=1:3  evidence = sample_dbn(bnet, 'stop_test', 'is_F2_true_D3');        ev = cell2num(evidence);  chars(ev(end,:))  %T = size(evidence, 2)  %pretty_print_hhmm_parse(evidence, Qnodes, Fnodes, Onode, chars);end