title: "Data-Driven Interaction Techniques for Improving Navigation of Educational Videos"
authors: Juho Kim, Philip J. Guo, Carrie J. Cai, Shang-Wen (Daniel) Li, Krzysztof Z. Gajos, Robert C. Miller
venue: ACM Symposium on User Interface Software and Technology (UIST)
year: 2014
links:
- <a href="http://juhokim.com/lecturescape/">Webpage</a>

tweet: LectureScape is a MOOC video player that lets viewers see what thousands of prior viewers focus on

abstract: >
  With an unprecedented scale of learners watching educational videos on
  online platforms such as MOOCs and YouTube, there is an opportunity to
  incorporate data generated from their interactions into the design of
  novel video interaction techniques. Interaction data has the potential
  to help not only instructors to improve their videos, but also to enrich
  the learning experience of educational video watchers. This paper
  explores the design space of data-driven interaction techniques for
  educational video navigation. We introduce a set of techniques that
  augment existing video interface widgets, including: a 2D video timeline
  with an embedded visualization of collective navigation traces; dynamic
  and non-linear timeline scrubbing; data-enhanced transcript search and
  keyword summary; automatic display of relevant still frames next to the
  video; and a visual summary representing points with high learner
  activity. To evaluate the feasibility of the techniques, we ran a
  laboratory user study with simulated learning tasks. Participants rated
  watching lecture videos with interaction data to be efficient and useful
  in completing the tasks. However, no significant differences were found
  in task performance, suggesting that interaction data may not always
  align with moment-by-moment information needs during the tasks.

bibtex: >
  @inproceedings{KimUIST2014,
   author = {Kim, Juho and Guo, Philip J. and Cai, Carrie J. and Li, Shang-Wen (Daniel) and Gajos, Krzysztof Z. and Miller, Robert C.},
   title = {Data-driven Interaction Techniques for Improving Navigation of Educational Videos},
   booktitle = {Proceedings of the 27th Annual ACM Symposium on User Interface Software and Technology},
   series = {UIST '14},
   year = {2014},
   isbn = {978-1-4503-3069-5},
   location = {Honolulu, Hawaii, USA},
   pages = {563--572},
   numpages = {10},
   url = {http://doi.acm.org/10.1145/2642918.2647389},
   doi = {10.1145/2642918.2647389},
   acmid = {2647389},
   publisher = {ACM},
   address = {New York, NY, USA},
   keywords = {MOOCs, interaction peaks, multimedia learning, video content analysis, video learning, video summarization},
  }