Merge branch 'feature/zhangbo_rank' into feature/zhangbo_model

recommend-server-service/src/main/java/com/tzld/piaoquan/recommend/server/service/score4recall/strategy/FlowPoolScorer.java

@@ -54,5 +54,10 @@ public class FlowPoolScorer extends AbstractScorer4Recall {
         return id2BetaScore.subList(0, Math.min(60, id2BetaScore.size()));
     }
 
+    public static void main(String[] args) {
+        BetaDistribution betaSample;
+        betaSample = new BetaDistribution(0.0, 0.0);
+        System.out.println(betaSample.sample());
+    }
 
 }