Update app.py

app.py

@@ -673,10 +673,10 @@ def main():
     }
 
     scaler_paths = {
-        'Teacher': 'scaler_train_wholedata.joblib',
-        'Student_North': 'scaler_train_North.joblib',
-        'Student_Mid': 'scaler_train_Mid.joblib',
-        'Student_South': 'scaler_train_South.joblib'
+        'Teacher': 'scaler_train_wholedata_up.joblib',
+        'Student_North': 'scaler_train_North_up.joblib',
+        'Student_Mid': 'scaler_train_Mid_up.joblib',
+        'Student_South': 'scaler_train_South_up.joblib'
     }
 
     # ============================