Hu, Sathaporn "Hubert"Willett, Wesley2018-05-032018-05-032018-04-20Hu, S., & Willett, W. J. (2018). Kalgan. Extended Abstracts of the 2018 CHI Conference on Human Factors in Computing Systems - CHI 18. doi:10.1145/3170427.3188498978-1-4503-5621-3http://hdl.handle.net/1880/106609We present the initial design and evaluation of Kalgan, an interactive video player tailored to support casual language learning. Unlike traditional, more structured learning, casual language learning takes place alongside existing leisure activities such as watching videos. To better support learning during casual video viewing, we introduce several new features, including subtitle-aware rewind, interactive subtitle translation, and word lookup history that help people quickly access language content and recover missed information without disrupting their viewing experience. We evaluated this initial version of Kalgan using a mix of remote studies and in-person observation. The results of the evaluation highlight our participants’ enthusiasm for subtitle-centric learning aids. They also suggest a variety of future research opportunities for casual language learning tools.enUnless otherwise indicated, this material is protected by copyright and has been made available with authorization from the copyright owner. You may use this material in any way that is permitted by the Copyright Act or through licensing that has been assigned to the document. For uses that are not allowable under copyright legislation or licensing, you are required to seek permission.https://creativecommons.org/licenses/by/4.0Computer-Assisted Language LearningVideo Playertechnical report10.1145/3170427.318849810.11575/PRISM/35467