pdf_ocr_artifact_cleaner

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PDF/OCR伪影清洗工具。修复从学术论文PDF提取文本时的常见问题：断行连字符拼接（dehyphenation）、页码去除、Unicode连字归一化（ﬁ→fi）、页眉页脚去除。当用户提到PDF文本清洗、OCR伪影处理、断行修复、连字符拼接等需求时使用此skill。

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pdf_ocr_artifact_cleaner PDF/OCR伪影清洗Skill

功能概述

修复从 PDF/OCR 提取文本时的三大类常见伪影：(1) 断行连字符拼接 analy-\nsis→analysis；(2) 独立页码行去除；(3) Unicode 连字归一化 ﬁ→fi。同时支持通过正则表达式去除页眉页脚。

触发条件

PDF 文本清洗
OCR 伪影处理
断行连字符修复
页码去除
连字归一化
学术论文文本提取后处理

支持的文件格式

支持以下结构化文件格式：

CSV (.csv) / TSV (.tsv) / Excel (.xls, .xlsx) / SPSS (.sav)

不支持的文件格式会直接报错拒绝，不会自动猜测格式；如需处理其他格式，请先转换为以上支持格式后再使用本skill。

使用方法

python scripts/pdf_ocr_artifact_cleaner.py \
    --input_path <输入文件> \
    --output_path <输出文件> \
    [--text_columns col1,col2] \
    [--no_dehyphenate] \
    [--header_pattern "Chapter \d+\."]

参数说明

参数	必填	说明
`--input_path`	是	输入文件路径
`--output_path`	是	输出文件路径
`--text_columns`	否	处理的文本列
`--no_dehyphenate`	否	关闭断行连字符拼接
`--no_strip_page_numbers`	否	关闭页码去除
`--no_normalize_ligatures`	否	关闭连字归一化
`--header_pattern`	否	匹配页眉的正则
`--footer_pattern`	否	匹配页脚的正则

输出示例

[OK] PDF/OCR伪影清洗完成 -> output.csv
   文本列: ['text']
   启用: ['dehyphenate', 'strip_page_numbers', 'normalize_ligatures']

输入 exper-\nimental → 输出 experimental

注意事项

断行连字符只修复行尾带 - 后紧跟换行的情况，不破坏 state-of-the-art 等有意的连字符
页码支持阿拉伯数字（42）和罗马数字（xiv）
连字归一化处理：ﬁ→fi、ﬂ→fl、ﬀ→ff、ﬃ→ffi、ﬄ→ffl