> For the complete documentation index, see [llms.txt](https://johannesliu.gitbook.io/knowledge-extraction-concept-and-technology/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://johannesliu.gitbook.io/knowledge-extraction-concept-and-technology/readme.md).

# 介绍

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