Update README.md

README.md

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-license: mit
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+license: mit
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+Text data related to the subject of Manufacturing Engineering.
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+Compressed file "*.tar.gz" is a collection of json files, which are filtered from Fineweb dataset.
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+The classification was done by fasttext (https://github.com/ZJLab-ZBZX/Data-Processing-Toolkit-for-LLMs/tree/main/Subject_Classifier).
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+And we randomly selected 12.8% classified data, and checked them by Qwen-2-7B LLM through customized prompt.
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+The accuracy of the classified data is about 96.4988%. The total data volume is 5.6B token.
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+File "wiki_Manufacturing_yes.jsonl" is a json file filtered from Wikipedia dataset.
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+File "sft-Manufacturing-en.jsonl" is a json file for supervised fine-tuning (SFT).