upadte CER

cer.py

@@ -88,7 +88,7 @@ Examples:
     >>> cer = datasets.load_metric("cer")
     >>> cer_score = cer.compute(predictions=predictions, references=references)
     >>> print(cer_score)
-    0.5
+    0.34146341463414637
 """
 
 

test_cer.py

@@ -91,29 +91,29 @@ class TestCER(unittest.TestCase):
         self.assertTrue(abs(char_error_rate - 0.03571428) < 1e-6)
 
     def test_cer_unicode(self):
-        ref = [u'我能吞下玻璃而不伤身体']
-        pred = [u' 能吞虾玻璃而 不霜身体啦']
+        refs = [u'我能吞下玻璃而不伤身体']
+        preds = [u' 能吞虾玻璃而 不霜身体啦']
         # S = 3, D = 2, I = 0, N = 11
         # CER = 5 / 11
-        char_error_rate = cer.compute(predictions=pred, references=ref)
+        char_error_rate = cer.compute(predictions=preds, references=refs)
         self.assertTrue(abs(char_error_rate - 0.4545454545) < 1e-6)
 
-        ref = [u'我能吞', u'下玻璃而不伤身体']
-        pred = [u'我    能 吞 下 玻 璃', u'而不伤身体']
+        refs = [u'我能吞', u'下玻璃而不伤身体']
+        preds = [u'我    能 吞 下 玻 璃', u'而不伤身体']
         # S = 0, D = 5, I = 0, N = 11
         # CER = 5 / 11
-        char_error_rate = cer.compute(predictions=pred, references=ref)
+        char_error_rate = cer.compute(predictions=preds, references=refs)
         self.assertTrue(abs(char_error_rate - 0.454545454545) < 1e-6)
 
-        ref = [u'我能吞下玻璃而不伤身体']
-        char_error_rate = cer.compute(predictions=ref, references=ref)
+        refs = [u'我能吞下玻璃而不伤身体']
+        char_error_rate = cer.compute(predictions=refs, references=refs)
         self.assertFalse(char_error_rate, 0.0)
 
     def test_cer_empty(self):
-        ref = ''
-        pred = 'Hypothesis'
+        refs = ''
+        preds = 'Hypothesis'
         with self.assertRaises(ValueError):
-            char_error_rate = cer.compute(predictions=pred, references=ref)
+            char_error_rate = cer.compute(predictions=preds, references=refs)
 
 if __name__ == '__main__':
     unittest.main()