about summary refs log tree commit diff
path: root/sourcecodes/bnt-master/graph/check_jtree_property.m
diff options
context:
space:
mode:
authorziejd22017-09-28 15:04:40 -0500
committerziejd22017-09-28 15:04:40 -0500
commit8070dc963753142bb86c4ed698d91fd623ed28e7 (patch)
treed0f6dd8fc46a49b819aa55c1a90faa14d8448883 /sourcecodes/bnt-master/graph/check_jtree_property.m
parent7cc31810d53176e805532b2789955f4eedbce6bb (diff)
downloadBNW-8070dc963753142bb86c4ed698d91fd623ed28e7.tar.gz
BNW using Octave instead of Matlab.
This version of BNW should perform the same as the original version. The only difference is that it uses Octave instead of Matlab when running BayesNet Toolbox during parameter learning.

I am calling this BNW_1.02. It can be accessed at:
compbio.uthsc.edu/BNW_1.02
Diffstat (limited to 'sourcecodes/bnt-master/graph/check_jtree_property.m')
-rw-r--r--sourcecodes/bnt-master/graph/check_jtree_property.m18
1 files changed, 18 insertions, 0 deletions
diff --git a/sourcecodes/bnt-master/graph/check_jtree_property.m b/sourcecodes/bnt-master/graph/check_jtree_property.m
new file mode 100644
index 00000000..3986c05e
--- /dev/null
+++ b/sourcecodes/bnt-master/graph/check_jtree_property.m
@@ -0,0 +1,18 @@
+function check_jtree_property(cliques_containing_node, jtree)
+% CHECK_JTREE_PROPERTY Raise an error if the graph does not satisfy the join tree property.
+% check_jtree_property(cliques_containing_node, jtree_adj_mat)
+%
+% The join tree property says:
+% For each node n in the dag, compute the node-induced subgraph G by looking at all the cliques
+% that contain n, and make sure G forms a connected graph. 
+% This ensures that local propagation leads to global consistency.
+
+num_bn_nodes = length(cliques_containing_node);
+directed = 0;
+for i=1:num_bn_nodes
+  cs = cliques_containing_node{i};
+  G = jtree(cs,cs);
+  if ~connected_graph(G, directed)
+    error(['node ' num2str(i) ' violates jtree property']);
+  end
+end