Duplicate Detector Exact

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duplicate_detector_exact

Duplicate Detector Exact 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.

精确去重工具。使用pandas精确匹配检测并处理数据集中的完全重复记录，速度快、无额外依赖。当用户提到精确去重、完全重复检测、数据去重等需求时使用此skill。

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QUICK START

How to use this skill

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Prompt to paste

Inspect the Agent Skill at https://github.com/cas-bigdatalab/piflow/blob/HEAD/workspace/skills/duplicate_detector_exact/SKILL.md and all supporting files. Report provenance, permissions, scripts, dependencies, and security risks. Propose an exact installation into .agents/skills/duplicate-detector-exact, but wait for my approval before writing files or running scripts.

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Duplicate Detector Exact 精确去重 Skill

功能概述

本skill用于检测和处理数据集中的完全重复记录，基于pandas的精确匹配：

全字段匹配：所有列完全相同的记录
指定字段匹配：只比较指定的字段

保留策略

策略	说明
`first`	保留第一条重复记录
`last`	保留最后一条重复记录
`none`	删除所有重复记录
`mark`	标记重复但不删除（添加is_duplicate列）

使用方法

全字段去重

python scripts/run_duplicate_detector_exact.py \
  --input data.csv \
  --output deduped.csv

按指定字段去重

python scripts/run_duplicate_detector_exact.py \
  --input data.csv \
  --output deduped.csv \
  --subset "name,phone"

标记重复

python scripts/run_duplicate_detector_exact.py \
  --input data.csv \
  --output marked.csv \
  --keep mark

参数说明

参数	必填	说明
`--input`	是	输入文件路径
`--output`	是	输出文件路径
`--subset`	否	判断重复的字段，逗号分隔
`--keep`	否	保留策略，默认"first"

环境要求

pip install pandas openpyxl