comparison toolboxes/FullBNT-1.0.7/bnt/examples/dynamic/HHMM/mk_hhmm_topo.m @ 0:cc4b1211e677 tip

initial commit to HG from
Changeset:
646 (e263d8a21543) added further path and more save "camirversion.m"

+function [intra, inter, Qnodes, Fnodes, Onode] = mk_hhmm_topo(D, all_Q_to_Qs, Ops, F1)
+% MK_HHMM_TOPO Make Hierarchical HMM topology
+% function [intra, inter, Qnodes, Fnodes, Onode] = mk_hhmm_topo(D, all_Q_to_Qs, Ops, F1)
+%
+% D is the depth of the hierarchy
+% If all_Q_to_Qs = 1, level i connects to all levels below, else just to i+1 [0]
+% Ops are the Q parents of the observed node [Qnodes(end)]
+% If F1=1, level 1 can finish (restart), else there is no F1->Q1 arc [0]
+
+Qnodes = 1:D;
+
+if nargin < 2, all_Q_to_Qs = 1; end
+if nargin < 3, Ops = Qnodes(D); end
+if nargin < 4, F1 = 0; end
+
+if F1
+  Fnodes = 2*D:-1:D+1; % must number from bottom to top
+  Onode = 2*D+1;
+  ss = 2*D+1;
+else
+  Fnodes = [-1 (2*D)-1:-1:D+1]; % Fnodes(1) is a dummy index
+  Onode = 2*D;
+  ss = 2*D;
+end
+
+intra = zeros(ss);
+intra(Ops, Onode) = 1;
+for d=1:D-1
+  if all_Q_to_Qs
+    intra(Qnodes(d), Qnodes(d+1:end)) = 1;
+  else
+    intra(Qnodes(d), Qnodes(d+1)) = 1;
+  end
+end
+for d=D:-1:3
+  intra(Fnodes(d), Fnodes(d-1)) = 1;
+end
+if F1
+  intra(Fnodes(2), Fnodes(1)) = 1;
+end
+if all_Q_to_Qs
+  if F1
+    intra(Qnodes(1), Fnodes(1:end)) = 1;
+  else
+    intra(Qnodes(1), Fnodes(2:end)) = 1;
+  end
+  for d=2:D
+    intra(Qnodes(d), Fnodes(d:end)) = 1;
+  end
+else
+  if F1
+    intra(Qnodes(1), Fnodes([1 2])) = 1;
+  else
+    intra(Qnodes(1), Fnodes(2)) = 1;
+  end
+  for d=2:D-1
+    intra(Qnodes(d), Fnodes([d d+1])) = 1;
+  end
+  intra(Qnodes(D), Fnodes(D)) = 1;
+end
+
+
+inter = zeros(ss);
+for d=1:D
+  inter(Qnodes(d), Qnodes(d)) = 1;
+end
+if F1
+  inter(Fnodes(1), Qnodes(1)) = 1;
+end
+for d=2:D
+  inter(Fnodes(d), Qnodes([d-1 d])) = 1;
+end
+
+if ~F1
+  Fnodes = Fnodes(2:end); % strip off dummy -1 term
+end