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However, previous works on ear-based input mainly address gesture sensing technology and researcher-designed gestures. This paper aims to bring more understandings of gesture design. Thus, for a user elicitation study, we recruited 28 participants, each of whom designed gestures for 31 smart device-related tasks. This resulted in a total of 868 gestures generated. Upon the basis of these gestures, we compiled a taxonomy and concluded the considerations underlying the participants' designs that also offer insights into their design rationales and preferences. Thereafter, based on these study results, we propose a set of user-defined gestures and share interesting findings. We hope this work can shed some light on not only sensing technologies of ear-based input, but also the interface design of future wearable interfaces.<\/jats:p>","DOI":"10.1145\/3427314","type":"journal-article","created":{"date-parts":[[2020,11,5]],"date-time":"2020-11-05T00:44:02Z","timestamp":1604537042000},"page":"1-20","update-policy":"https:\/\/doi.org\/10.1145\/crossmark-policy","source":"Crossref","is-referenced-by-count":31,"title":["Exploring User Defined Gestures for Ear-Based Interactions"],"prefix":"10.1145","volume":"4","author":[{"given":"Yu-Chun","family":"Chen","sequence":"first","affiliation":[{"name":"National Chiao Tung University &amp; National Taiwan University, Hsinchu, Taiwan Roc"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Chia-Ying","family":"Liao","sequence":"additional","affiliation":[{"name":"National Chiao Tung University, Hsinchu, Taiwan Roc"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Shuo-wen","family":"Hsu","sequence":"additional","affiliation":[{"name":"National Chiao Tung University, Hsinchu, Taiwan Roc"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Da-Yuan","family":"Huang","sequence":"additional","affiliation":[{"name":"Huawei, Markham, ON, Canada"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Bing-Yu","family":"Chen","sequence":"additional","affiliation":[{"name":"National Taiwan University, Taipei, Taiwan Roc"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"320","published-online":{"date-parts":[[2020,11,4]]},"reference":[{"key":"e_1_2_1_1_1","doi-asserted-by":"publisher","DOI":"10.1145\/3126594.3126649"},{"key":"e_1_2_1_2_1","doi-asserted-by":"publisher","DOI":"10.1145\/2858036.2858385"},{"key":"e_1_2_1_3_1","doi-asserted-by":"publisher","DOI":"10.1145\/2935334.2935389"},{"key":"e_1_2_1_4_1","doi-asserted-by":"publisher","DOI":"10.1145\/3267782.3267796"},{"key":"e_1_2_1_5_1","doi-asserted-by":"publisher","DOI":"10.1145\/3064663.3064766"},{"key":"e_1_2_1_6_1","doi-asserted-by":"publisher","DOI":"10.1145\/2858036.2858589"},{"key":"e_1_2_1_7_1","doi-asserted-by":"publisher","DOI":"10.1145\/1125451.1125601"},{"key":"e_1_2_1_8_1","volume-title":"Proceedings of the 24th Annual ACM Symposium on User Interface Software and Technology","author":"Harrison Chris","year":"2047","unstructured":"Chris Harrison , Hrvoje Benko , and Andrew D. 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