微调（dpo）的数据格式（json）能否给一个例子

[whk6688]

希望可以给一个微调和 pdo 的数据格式例子，比如上传一个json的文件。谢谢

[CSJianYang]

For SFT:

{
     "messages":[
         {"role": "system", "content": "You are Qwen, created by Alibaba Cloud. You are a helpful assistant."},
         {"role": "user", "content": "Write a regex expression to match any letter of the alphabet"},
         {"role": "assistant", "content": "The regex expression to match any letter of the alphabet (either in uppercase or lowercase) is: \n\n```regex\n[a-zA-Z]\n```"},
         {"role": "user", "content": "How about if I only want to match uppercase letters? Can you modify the regex expression for that?"},
         {"role": "assistant", "content": "Sure, the regex expression to match any uppercase letter of the alphabet is:\n\n```regex\n[A-Z]\n```"}
    ],
    "format": "chatml"
}

For DPO:

{
     {"prompt": "Prompt"},
     {"chosen": "The chosen response"},
     {"rejected": "The rejected response"},
}

[whk6688]

如果是多条，格式是下面这样？

{
"messages":[
{"role": "system", "content": "You are Qwen, created by Alibaba Cloud. You are a helpful assistant."},
{"role": "user", "content": "Write a regex expression to match any letter of the alphabet"},
{"role": "assistant", "content": "The regex expression to match any letter of the alphabet (either in uppercase or lowercase) is: \n\nregex\n[a-zA-Z]\n"}
],
"format": "chatml"
},
{
"messages":[
{"role": "system", "content": "You are Qwen, created by Alibaba Cloud. You are a helpful assistant."},
{"role": "user", "content": "Write a regex expression to match any letter of the alphabet"},
{"role": "assistant", "content": "The regex expression to match any letter of the alphabet (either in uppercase or lowercase) is: \n\nregex\n[a-zA-Z]\n"}
],
"format": "chatml"
}

[CSJianYang]

Yes, Each line contains one sample (.jsonl):

{"messages":[xxx], "format": "chatml"}
{"messages":[xxx], "format": "chatml"}
{"messages":[xxx], "format": "chatml"}

[Sherww]

@CSJianYang 您好，请问ORPO微调的数据是如下格式吗？
[
{
"instruction": "人类指令（必填）",
"input": "人类输入（选填）",
"chosen": "优质回答（必填）",
"rejected": "劣质回答（必填）"
}
]
那么其中的instruction我应该填写什么内容您有建议吗？我在qwen2.5 coder的基础上进行微调，数据是代码的行级补全数据，我目前的instruction填写的内容类似于“请为我补全以下代码”。但我发现在参数调优后，微调后的模型效果也没有变好，因此我在寻找可能的原因，instruction的设置会是一个可能的原因吗？
期待您的回复，谢谢。