V2EX quasi-identifier

Quasi-Identifier

Definition / 定义

准标识符:在数据集中,单独看不一定能直接识别某个人,但与其他信息组合后(如年龄+邮编+性别)可能间接定位到个人身份的一类字段/属性。常用于隐私保护与去标识化(如 k-anonymity)讨论中。

Pronunciation / 发音

/kwza adntfar/

Examples / 例句

A ZIP code can be a quasi-identifier in a dataset.
邮政编码在数据集中可能是一个准标识符。

Even after removing names, quasi-identifiers like birth date and location can still enable re-identification.
即使删除了姓名,出生日期和地点等准标识符仍可能导致重新识别(还原身份)。

Etymology / 词源

quasi- 源自拉丁语,意为“仿佛、类似”;identifier 来自 identify(识别、确认身份)。合起来表示“类似标识符”:它不像姓名、身份证号那样“直接标识”,但在组合情境下可能起到识别作用。

Related Words / 相关词

Literary Works / 文学作品

  • Latanya Sweeney, “k-Anonymity: A Model for Protecting Privacy”(2002):隐私保护经典论文,讨论准标识符在重识别中的作用。
  • Paul Ohm, “Broken Promises of Privacy: Responding to the Surprising Failure of Anonymization”(2010):分析匿名化失效与准标识符导致的重识别风险。
  • Simson Garfinkel, **Database Nation**(2000):面向大众的隐私与数据库社会讨论,涉及类似“准标识符”思路的案例与风险。
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