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fed5c73 | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 | from transformers import BertModel
from torch import nn
class BERTClassifier(nn.Module):
def __init__(self, bert_model_name, num_classes):
super(BERTClassifier, self).__init__()
self.bert = BertModel.from_pretrained(bert_model_name)
self.dropout = nn.Dropout(0.1)
self.fc = nn.Linear(self.bert.config.hidden_size, num_classes)
def forward(self, input_ids, attention_mask):
outputs = self.bert(input_ids=input_ids, attention_mask=attention_mask)
pooled_output = outputs.pooler_output
x = self.dropout(pooled_output)
logits = self.fc(x)
return logits
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