一句话：通过中英双语用户访谈比较中美 CAPTCHA 的区域差异，发现差异主要来自类型而非地区。
全球系统常用 CAPTCHA 作为防御未授权自动化访问的安全机制，但其有效性多从抗机器人能力评估，用户对交互体验与有效性的感知关注较少，尤其缺乏跨区域变体的比较。本文作为填补这一空白的第一步，对十名同时精通中文和英语的参与者进行半结构化访谈，考察中国和美国呈现的 CAPTCHA 变体是否影响用户感知。结果显示，不同 CAPTCHA 类型在感知用户体验与有效性上存在显著差异，但同一类型的区域变体之间没有显著差异。研究进一步指出若干使 CAPTCHA 用户体验更通用、更包容的方向。
Systems worldwide deploy CAPTCHAs as a security mechanism to protect from unauthorized automated access. Typically, the effectiveness of CAPTCHAs is evaluated based on their resilience against bots. User perceptions of the interactive experience and effectiveness of CAPTCHAs have received less attention, especially for comparing the variations of CAPTCHAs presented in different regions across the world. As the first step toward filling this gap, we conducted semi-structured interviews with ten participants fluent in Chinese and English to investigate whether user perceptions are affected by variations in CAPTCHAs presented in China and the United States, respectively. We found notable differences in the perceived user experience and effectiveness across the different CAPTCHA types, but not across regional variations of the same type. Our findings point to a number of avenues for making the CAPTCHA user experience more universal and inclusive.
@inproceedings{paperbot7249,
title = {Do Regional Variations Affect the CAPTCHA User Experience? A Comparison of CAPTCHAs in China and the United States},
author = {Xinyao Ma and Zaiqiao Ye and Sameer Patil},
booktitle = {ASE},
year = {2022},
doi = {10.1145/3551349.3561146}
}