Fix F1 calculation error in multitask classification

process/eval.py

@@ -74,14 +74,14 @@ class Runner(object):
 
             res_dict[task] = {
                 "acc": acc,
-                "f1": f1,
+                "f1": np.mean(class_f1s),
                 "success": success,
                 "fail": fail,
                 "success_rate": success / (success + fail)
             }
 
         res_dict["overall"] = {
-            "f1": np.mean(class_f1s),
+            "f1": np.mean([r["f1"] for r in res_dict.values()]),
             "acc": np.mean([r["acc"] for r in res_dict.values()]),
         }