<NME> Optimizer.java
<BEF> ADDFILE
<MSG> add interface Optimizer

<DFF> @@ -0,0 +1,10 @@
+package edu.neu.ccs.pyramid.optimization;
+
+/**
+ * Created by chengli on 6/9/15.
+ */
+public interface Optimizer {
+    void optimize();
+    void setCheckConvergence(boolean checkConvergence);
+    void setMaxIteration(int maxIteration);
+}

add interface Optimizer