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Force9: Force-assisted Miniature Keyboard on Smart Wearables
- Source :
- ICMI
- Publication Year :
- 2020
- Publisher :
- ACM, 2020.
-
Abstract
- Smartwatches and other wearables are characterized by small-scale touchscreens that complicate the interaction with content. In this paper, we present Force9, the first optimized miniature keyboard leveraging force-sensitive touchscreens on wrist-worn computers. Force9 enables character selection in an ambiguous layout by analyzing the trade-off between interaction space and the easiness of force-assisted interaction. We argue that dividing the screen’s pressure range into three contiguous force levels is sufficient to differentiate characters for fast and accurate text input. Our pilot study captures and calibrates the ability of users to perform force-assisted touches on miniature-sized keys on touchscreen devices. We then optimize the keyboard layout considering the goodness of character pairs (with regards to the selected English corpus) under the force-based configuration and the users? familiarity with the QWERTY layout. We finally evaluate the performance of the trimetric optimized Force9 layout, and achieve an average of 10.18 WPM by the end of the final session. Compared to the other state-of-the-art approaches, Force9 allows for single-gesture character selection without addendum sensors.
- Subjects :
- Space (punctuation)
InformationSystems_INFORMATIONINTERFACESANDPRESENTATION(e.g.,HCI)
Computer science
Character (computing)
force-assisted interaction
05 social sciences
text entry
Wearable computer
020207 software engineering
02 engineering and technology
Keyboard layout
Session (web analytics)
smartwatches
law.invention
Smartwatch
Touchscreen
law
Human–computer interaction
0202 electrical engineering, electronic engineering, information engineering
Selection (linguistics)
0501 psychology and cognitive sciences
optimization
050107 human factors
Subjects
Details
- Database :
- OpenAIRE
- Journal :
- Proceedings of the 2020 International Conference on Multimodal Interaction
- Accession number :
- edsair.doi.dedup.....2a9db06be230eaf5524f828dffe15575