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train_llava数据集构建的问题 #193

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weiaicunzai opened this issue Oct 30, 2024 · 0 comments

weiaicunzai commented Oct 30, 2024 •

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请教一下，关于train_llava的代码。为什么[final_inputs_ids] (https://github.com/yuanzhoulvpi2017/zero_nlp/blob/main/train_llava/train_llava/data.py#L128) 使用pad_token_id进行填充，而final_label_ids 使用 ignore_idx进行填充？为啥不是都用pad_token_id填充呢？

还有为啥ignore_idx 等于-100，模型是怎么知道-100是ignore_idx的呢？每个llm都知道-100是要忽略的值吗？比如llama，qwen之类的。

感谢！

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