ros fusion

recommend-server-service/src/main/java/com/tzld/piaoquan/recommend/server/service/rank/strategy/RankStrategy4RegionMergeModelV568.java

@@ -418,6 +418,12 @@ public class RankStrategy4RegionMergeModelV568 extends RankStrategy4RegionMergeM
     }
 
     private double norFusion(double modelWeight, double modelScore, double statWeight, double statScore) {
-        return modelWeight * modelScore + statWeight * statScore;
+        if (modelScore < 1E-8) {
+            return statScore;
+        } else if (statScore < 1E-8) {
+            return modelScore;
+        } else {
+            return modelWeight * modelScore + statWeight * statScore;
+        }
     }
 }