change input types to strings

logscoremetric.py

@@ -70,9 +70,10 @@ class LogScoreMetric(evaluate.Metric):
             citation=_CITATION,
             inputs_description=_KWARGS_DESCRIPTION,
             # This defines the format of each prediction and reference
+            # Both prediction and reference are strings
             features=datasets.Features({
-                'predictions': datasets.Value('int64'),
-                'references': datasets.Value('int64'),
+                'predictions': datasets.Value('string'),
+                'references': datasets.Value('string'),
             }),
             # Homepage of the module for documentation
             homepage="http://module.homepage",
@@ -91,5 +92,6 @@ class LogScoreMetric(evaluate.Metric):
         # TODO: Compute the different scores of the module
         accuracy = sum(i == j for i, j in zip(predictions, references)) / len(predictions)
         return {
+            "timestamp_score": accuracy,
             "accuracy": accuracy,
         }