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Kyung-Jun Lee, Chan Hyeok Yun, Ilsun Rhiu and Myung Hwan Yun
Accidents related to electric kick scooters, which are widespread globally, are increasing rapidly. However, most of the research on them concentrates on reporting accident status and injury patterns. Therefore, while it is necessary to analyze safety is...
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Joong Hee Lee, Yong Min Kim, Ilsun Rhiu and Myung Hwan Yun
Disabled and elderly populations may not fully appreciate the benefits of advanced technologies and every-day products due to accessibility issues. However, the diverse characteristics of disabled and elderly users make conducting user research a challen...
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Taehoon Ko, Ilsun Rhiu, Myung Hwan Yun and Sungzoon Cho
Customer needs and user contexts play an important role in generating ideas for new products or new functions. This study proposes a novel framework for identifying customers? unmet needs on online social media using the Context Tree through the Hierarch...
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