Automatic judgement of online video watching: I know whether or not you watched

Eunseon Yi, Heuiseok Lim, Jaechoon Jo

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)


Videos have long been viewed through the free choice of customers, but in some cases currently, watching them is absolutely required, for example, in institutions, companies, and education, even if the viewers prefer otherwise. In such cases, the video provider wants to determine whether the viewer has honestly been watching, but the current video viewing judging system has many loopholes; thus, it is hard to distinguish between honest viewers and false viewers. Time interval different answer popup quiz (TIDAPQ) was developed to judge honest watching. In this study, TIDAPQ randomly inserts specially developed popup quizzes in the video. Viewers must solve time interval pass (RESULT 1) and individually different correct answers (RESULT 2) while they watch. Then, using these two factors, TIDAPQ immediately performs a comprehensive judgement on whether the viewer honestly watched the video. To measure the performance of TIDAPQ, 100 experimental subjects were recruited to participate in the model verification experiment. The judgement performance on normal watching was 93.31%, and the judgement performance on unusual watching was 85.71%. We hope this study will be useful in many areas where watching judgements are needed.

Original languageEnglish
Article number1827
Pages (from-to)1-19
Number of pages19
Issue number10
Publication statusPublished - 2020 Oct

Bibliographical note

Publisher Copyright:
© 2020 by the authors.


  • Blended learning
  • Flipped learning
  • Judgement
  • Online class
  • Popup quiz
  • Video
  • Video advertising
  • Video learning
  • Viewer
  • Watching

ASJC Scopus subject areas

  • Computer Science (miscellaneous)
  • Engineering (miscellaneous)
  • General Mathematics


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