Characters or Faces: A User Study on Ease of Use for HIPs
作者： Yong Rui , Zicheng Liu , Shannon Kallin , Gavin Janke , Cem Paya
DOI: 10.1007/11427896_4
关键词: World Wide Web 、 Face detection 、 Computer science 、 Web service 、 Usability
摘要: Web-based services designed for human users are being abused by computer programs (bots). This real-world issue has recently generated a new research area called Human Interactive Proofs (HIP), whose goal is to defend from malicious attacks differentiating bots users. During the past few years, while more than dozen HIP systems have been developed, there little user study done in evaluating HIP’s ease of use and friendliness. In this paper, we first introduce based on face detection, then report comparative between conventional character-based HIP. Study results show that almost equally divided their overall use.
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