[ORPO] fix orpo chosen-nll loss#2502
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qgallouedec
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Dec 19, 2024
| attention_mask = concatenated_batch["concatenated_attention_mask"] | ||
| labels = torch.where(attention_mask == 1, labels, self.label_pad_token_id) | ||
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| labels = concatenated_batch["concatenated_labels"].clone() |
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Yes, checked together, if you do
labels = concatenated_batch["concatenated_input_ids"].clone()
attention_mask = concatenated_batch["concatenated_attention_mask"]
labels = torch.where(attention_mask == 1, labels, self.label_pad_token_id)you don't ignore the prompt.
qgallouedec
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Dec 19, 2024
yxliu-TAMU
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Apr 20, 2025
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What does this PR do?
Calculate the ORPO chosen nll loss with respect to the chosen completion only rather than the whole prompt+compeletion.
Also return the shifted logits when the model is decoder only