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Supertagging the Type-Logical corpus extracted from LASSY-Klein with the Transformer
When reporting loss, in train_epoch
, the code says
batch_p = self.forward(batch_x, batch_e, encoder_mask, decoder_mask)
However in eval_epoch
"infer"
batch_p = self.transformer.infer(batch_x, encoder_mask, dataset.type_dict['<SOS>'])
For Transformer.infer
and Transformer.forward
, the returned values diff by a torch.log
operation
in infer_one()
, we have
prob_t = self.predictor(decoder_step[:, -1])
return self.activation(prob_t)
However, in forward
prediction = self.predictor(decoder_output.decoder_input)
return torch.log(self.activation(prediction))
Therefore, the batch loss in both train_epoch
and eval_epoch
is computed by
batch_loss = criterion(batch_p[:, :-1].permute(0, 2, 1), batch_y[:, 1:])
may not be comparable for train_epoch
and eval_epoch
?
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