Regulating access to adult content (with privacy preservation)

Karen Renaud, Joseph Maguire

Research output: Chapter in Book/Report/Conference proceedingConference contribution

7 Citations (Scopus)


In the physical world we have well-established mechanisms for keeping children out of adult-only areas. In the virtual world this is generally replaced by self declaration. Some service providers resort to using heavyweight identification mechanisms, judging adulthood as a side effect thereof. Collection of identification data arguably constitutes an unwarranted privacy invasion in this context, if carried out merely to perform adulthood estimation. This paper presents a mechanism that exploits the adult's more extensive exposure to public media, relying on the likelihood that they will be able to recall details if cued by a carefully chosen picture. We conducted an online study to gauge the viability of this scheme. With our prototype we were able to predict that the user was a child 99% of the time. Unfortunately the scheme also misclassified too many adults. We discuss our results and suggest directions for future research.

Original languageEnglish
Title of host publicationProceedings of the 33rd Annual CHI Conference on Human Factors in Computing Systems
Place of PublicationNew York
PublisherAssociation for Computing Machinery (ACM)
Number of pages10
ISBN (Electronic)9781450331456
Publication statusPublished - 18 Apr 2015
Externally publishedYes
Event33rd Annual CHI Conference on Human Factors in Computing Systems, CHI 2015 - Seoul, Korea, Republic of
Duration: 18 Apr 201523 Apr 2015


Conference33rd Annual CHI Conference on Human Factors in Computing Systems, CHI 2015
Country/TerritoryKorea, Republic of


  • Children
  • Protection
  • Access


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