opendatalab / MinerU

A one-stop, open-source, high-quality data extraction tool, supports PDF/webpage/e-book extraction.一站式开源高质量数据提取工具,支持PDF/网页/多格式电子书提取。
https://opendatalab.com/OpenSourceTools
GNU Affero General Public License v3.0
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fix(ocr_mkcontent): improve language detection and content formatting #458

Closed myhloli closed 3 weeks ago

myhloli commented 3 weeks ago

Motivation

Optimize the language detection logic to enhance content formatting. This change addresses issues with long word segmentation. Language detection now uses a threshold to determine the language of a text based on the proportion of English characters. Formatting rules for content have been updated to consider a list of languages (initially including Chinese, Japanese, and Korean) where no space is added between content segments for inline equations and text spans, improving the handling of Asian languages.

The impact of these changes includes improved accuracy in language detection, better segmentation of long words, and more appropriate spacing in content formatting for multiple languages.

Modification

Please briefly describe what modification is made in this PR.

BC-breaking (Optional)

Does the modification introduce changes that break the backward compatibility of the downstream repositories? If so, please describe how it breaks the compatibility and how the downstream projects should modify their code to keep compatibility with this PR.

Use cases (Optional)

If this PR introduces a new feature, it is better to list some use cases here and update the documentation.

Checklist

Before PR:

After PR: