Update app.py

app.py

@@ -81,7 +81,7 @@ def calculate_best_result(user_model_ids):
   best_result = mean_reward - std_reward
   :param user_model_ids: RL models of a user
   """
-  best_result = -100
+  best_result = -1000
   best_model_id = ""
   for model in user_model_ids:
     meta = get_metadata(model)