fixed BertForMultipleChoice model init and forward pass

This commit is contained in:
David Pollack
2019-04-15 10:38:01 +02:00
parent 616743330e
commit 38ba7b439b

View File

@@ -1034,13 +1034,13 @@ class BertForMultipleChoice(BertPreTrainedModel):
self.num_choices = num_choices
self.bert = BertModel(config)
self.dropout = nn.Dropout(config.hidden_dropout_prob)
self.classifier = nn.Linear(config.hidden_size, 1)
self.classifier = nn.Linear(config.hidden_size, num_choices)
self.apply(self.init_bert_weights)
def forward(self, input_ids, token_type_ids=None, attention_mask=None, labels=None):
flat_input_ids = input_ids.view(-1, input_ids.size(-1))
flat_token_type_ids = token_type_ids.view(-1, token_type_ids.size(-1))
flat_attention_mask = attention_mask.view(-1, attention_mask.size(-1))
flat_token_type_ids = token_type_ids.view(-1, token_type_ids.size(-1)) if token_type_ids is not None else None
flat_attention_mask = attention_mask.view(-1, attention_mask.size(-1)) if attention_mask is not None else None
_, pooled_output = self.bert(flat_input_ids, flat_token_type_ids, flat_attention_mask, output_all_encoded_layers=False)
pooled_output = self.dropout(pooled_output)
logits = self.classifier(pooled_output)