NDLI: There is more to Typing than Speed: Expressive Mobile Touch Keyboards via Dynamic Font Personalisation

Content Provider	ACM Digital Library
Author	De Luca, Alexander Alt, Florian Buschek, Daniel
Abstract	Typing is a common task on mobile devices and has been widely addressed in HCI research, mostly regarding quantitative factors such as error rates and speed. Qualitative aspects, like personal expressiveness, have received less attention. This paper makes individual typing behaviour visible to the users to render mobile typing more personal and expressive in varying contexts: We introduce a dynamic font personalisation framework, TapScript, which adapts a finger-drawn font according to user behaviour and context, such as finger placement, device orientation and movements - resulting in a handwritten-looking font. We implemented TapScript for evaluation with an online survey (N=91) and a field study with a chat app (N=11). Looking at resulting fonts, survey participants distinguished pairs of typists with 84.5% accuracy and walking/sitting with 94.8%. Study participants perceived fonts as individual and the chat experience as personal. They also made creative explicit use of font adaptations.
Starting Page	125
Ending Page	130
Page Count	6
File Format	PDF
ISBN	9781450336529
DOI	10.1145/2785830.2785844
Language	English
Publisher	Association for Computing Machinery (ACM)
Publisher Date	2015-08-24
Publisher Place	New York
Access Restriction	Subscribed
Subject Keyword	Touch typing Font personalisation Mobile
Content Type	Text
Resource Type	Article

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1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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There is more to Typing than Speed: Expressive Mobile Touch Keyboards via Dynamic Font Personalisation