add challenge set CM+T

CrossWOZ.py

@@ -162,6 +162,12 @@ class CrossWOZ(datasets.GeneratorBasedBuilder):
             # If there's a common (input, target) tuple from the features,
             # specify them here. They'll be used if as_supervised=True in
             # builder.as_dataset.
+            splits={
+                datasets.Split.TRAIN: "train",
+                datasets.Split.VALIDATION: "val",
+                datasets.Split.TEST: "test",
+                "challenge.CM+T": "CM+T dialogs in the test set"
+            },
             supervised_keys=None,
             # Homepage of the dataset for documentation
             homepage=_HOMEPAGE,
@@ -203,11 +209,11 @@ class CrossWOZ(datasets.GeneratorBasedBuilder):
                 },
             ),
             datasets.SplitGenerator(
-                name="challenge",
+                name="challenge.CM+T",
                 # These kwargs will be passed to _generate_examples
                 gen_kwargs={
                     "filepath": os.path.join(data_dir, "test.json"),
-                    "split": "challenge_CM+T",
+                    "split": "challenge.CM+T",
                 },
             ),
         ]
@@ -267,7 +273,7 @@ class CrossWOZ(datasets.GeneratorBasedBuilder):
         with open(filepath, encoding="utf-8") as f:
             data = json.load(f)
             for dialog_id, dialog in data.items():
-                if split == "challenge_CM+T" and dialog["type"] != "不独立多领域+交通":
+                if split == "challenge.CM+T" and dialog["type"] != "不独立多领域+交通":
                     continue
                 messages = []
                 for turn in dialog["messages"]: