refine default settings

paddlepalm/reader/match.py

@@ -28,7 +28,7 @@ class Reader(reader):
 
         reader = ClassifyReader(config['vocab_path'],
             max_seq_len=config['max_seq_len'],
-            do_lower_case=config.get('do_lower_case', False),
+            do_lower_case=config.get('do_lower_case', True),
             for_cn=config.get('for_cn', False),
             random_seed=config.get('seed', None))
         self._reader = reader

paddlepalm/reader/mlm.py

@@ -40,7 +40,7 @@ class Reader(reader):
         if phase == 'train':
             self._input_file = config['train_file']
             self._num_epochs = None # 防止iteartor终止
-            self._shuffle = config.get('shuffle', False)
+            self._shuffle = config.get('shuffle', True)
             self._shuffle_buffer = config.get('shuffle_buffer', 5000)
         elif phase == 'eval':
             self._input_file = config['dev_file']

paddlepalm/reader/mrc.py

@@ -43,7 +43,7 @@ class Reader(reader):
             self._input_file = config['train_file']
             # self._num_epochs = config['num_epochs']
             self._num_epochs = None # 防止iteartor终止
-            self._shuffle = config.get('shuffle', False)
+            self._shuffle = config.get('shuffle', True)
             self._shuffle_buffer = config.get('shuffle_buffer', 5000)
         if phase == 'eval':
             self._input_file = config['dev_file']