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Language Filter

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language_filter

Language Filter is an Agent Skill for documents published in the cas-bigdatalab/piflow repository on GitHub: a SKILL.md instruction file an AI agent can load to do this task.

语种过滤工具。对指定或全部文本列进行语言检测,可选择保留或剔除目标语种, 输出过滤后的数据并附带 detected_lang 列。

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How to use this skill

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  1. Open your project in Codex.
  2. Copy and paste the prompt below.
  3. Review files and risks before approving any action.
Prompt to paste
Inspect the Agent Skill at https://github.com/cas-bigdatalab/piflow/blob/HEAD/workspace/skills/language_filter/SKILL.md and all supporting files. Report provenance, permissions, scripts, dependencies, and security risks. Propose an exact installation into .agents/skills/language-filter, but wait for my approval before writing files or running scripts.

Copying this prompt does not install or run the skill. Review third-party files before use.

language_filter 语种过滤

功能概述

  • langdetect 识别语种,写入 detected_lang 列。
  • 根据模式保留或剔除目标语种样本。

参数说明

参数必填默认值说明
--input_path是输入文件路径(支持CSV/TSV/Excel等)
--output_path是输出文件路径(过滤后的文件)
--target_lang是目标语种代码(如 zh, en, fr 等)
--text_columns否用于检测的文本列,逗号分隔;不填默认全部字符串列
--mode否keep=保留目标语种,drop=剔除目标语种,默认 keep

使用方法

python scripts/language_filter.py \
  --input_path <输入文件> \
  --output_path <输出文件> \
  --target_lang zh \
  [--text_columns col1,col2] \
  [--mode keep|drop]

输出说明

  • 新增列 detected_lang 标记检测结果。
  • 根据 mode 输出过滤后的数据。

注意事项

  • 依赖 langdetect,请确保已安装:pip install langdetect。
  • 语言检测对极短文本可能不稳定,建议提供上下文较多的列或多列拼接。