2 files changed, 5 insertions, 1 deletions
diff --git a/nlpsolver/ThirdParty/EvolutionarySolver/src/net/adaptivebox/deps/behavior/DEGTBehavior.java b/nlpsolver/ThirdParty/EvolutionarySolver/src/net/adaptivebox/deps/behavior/DEGTBehavior.java
index 0e68f856d912..5dedc8052ec7 100644
--- a/nlpsolver/ThirdParty/EvolutionarySolver/src/net/adaptivebox/deps/behavior/DEGTBehavior.java
+++ b/nlpsolver/ThirdParty/EvolutionarySolver/src/net/adaptivebox/deps/behavior/DEGTBehavior.java
@@ -118,7 +118,7 @@ public class DEGTBehavior extends AbsGTBehavior implements ILibEngine {
   private SearchPoint[] getReferPoints() {
     SearchPoint[] referPoints = new SearchPoint[DVNum * 2];
     for (int i = 0; i < referPoints.length; i++) {
-      referPoints[i] = socialLib.getSelectedPoint(RandomGenerator.intRangeRandom(0, socialLib.getPopSize() - 1));
+      referPoints[i] = socialLib.getRandomPoint();
     }
     return referPoints;
   }
diff --git a/nlpsolver/ThirdParty/EvolutionarySolver/src/net/adaptivebox/knowledge/Library.java b/nlpsolver/ThirdParty/EvolutionarySolver/src/net/adaptivebox/knowledge/Library.java
index 247d4908c420..76e57ac76077 100644
--- a/nlpsolver/ThirdParty/EvolutionarySolver/src/net/adaptivebox/knowledge/Library.java
+++ b/nlpsolver/ThirdParty/EvolutionarySolver/src/net/adaptivebox/knowledge/Library.java
@@ -56,6 +56,10 @@ public class Library {
     return libPoints[index];
   }
 
+  public SearchPoint getRandomPoint() {
+    return libPoints[RandomGenerator.intRangeRandom(0, libPoints.length - 1)];
+  }
+
   public static boolean replace(IGoodnessCompareEngine comparator, SearchPoint outPoint,
       SearchPoint tobeReplacedPoint) {
     boolean isBetter = false;