diff --git a/matlab/bottom_up_ordering.m b/matlab/bottom_up_ordering.m
new file mode 100644
index 000000000..82c0101bc
--- /dev/null
+++ b/matlab/bottom_up_ordering.m
@@ -0,0 +1 @@
+% put function here
\ No newline at end of file
diff --git a/matlab/BeijingPose2Graph_kai.m b/matlab/kai01_BejingPose2Graph.m
similarity index 100%
rename from matlab/BeijingPose2Graph_kai.m
rename to matlab/kai01_BejingPose2Graph.m
diff --git a/matlab/kai02_bottomUp.m b/matlab/kai02_bottomUp.m
new file mode 100644
index 000000000..b722b50c6
--- /dev/null
+++ b/matlab/kai02_bottomUp.m
@@ -0,0 +1,5 @@
+% test ordering
+
+input = 6;
+ordering = bottom_up_ordering(6);
+ordering.print('ordering')
diff --git a/matlab/BeijingPose2Graph.m b/matlab/vila01_BejingPose2Graph.m
similarity index 100%
rename from matlab/BeijingPose2Graph.m
rename to matlab/vila01_BejingPose2Graph.m