@conference {155,
	title = {Challenges in Mobile Text Entry using Virtual Keyboards for Low-Vision Users},
	booktitle = {19th International Conference on Mobile and Ubiquitous Multimedia (MUM 2020)},
	year = {2020},
	publisher = {ACM},
	organization = {ACM},
	address = {Essen, Germany},
	abstract = {Mobile text entry for sighted and blind persons has received much research attention. However, much less is known about meeting the text entry needs of persons with low vision, whose ability to use the visual channel alongside audio, speech and haptic modalities, may open unexplored opportunities for efficient and privacy-preserving mobile text entry. We present findings from a qualitative study with 9 low vision users, revealing current text entry challenges for this user group, and providing future directions for text entry research.},
	keywords = {accessibility, low-vision users, Mobile Text Entry, virtual keyboards},
	doi = {10.1145/3428361.3428391},
	author = {Vasilios Stefanis and Andreas Komninos and John Garofalakis}
}
@article {147,
	title = {Investigating Error Injection to Enhance the Effectiveness of Mobile Text Entry Studies of Error Behaviour},
	year = {2020},
	abstract = {During lab studies of text entry methods it is typical to observer very few errors in participants{\textquoteright} typing - users tend to type very carefully in labs. This is a problem when investigating methods to support error awareness or correction as support mechanisms are not tested. We designed a novel evaluation method based around injection of errors into the users{\textquoteright} typing stream and report two user studies on the effectiveness of this technique. Injection allowed us to observe a larger number of instances and more diverse types of error correction behaviour than would normally be possible in a single study, without having a significant impact on key input behaviour characteristics. Qualitative feedback from both studies suggests that our injection algorithm was successful in creating errors that appeared realistic to participants. The use of error injection shows promise for the investigation of error correction behaviour in text entry studies.

Work originally conducted in between Sept 2013 - Jan 2016, document prepared Feb 2016},
	keywords = {evaluation methods, Mobile Text Entry},
	url = {arXiv:2003.06323},
	author = {Andreas Komninos and Emma Nicol and Mark D Dunlop}
}
@conference {97,
	title = {Usability of Visibly Adaptive Smartphone keyboard layouts},
	booktitle = {20th Panhellenic Conference on Informatics (PCI2016)},
	year = {2016},
	publisher = {ACM},
	organization = {ACM},
	address = {Patras, Greece},
	abstract = {We present two touchscreen smartphone keyboard interface designs which dynamically alter key sizes as the user types and highlight likely key targets, based on word completion predictions. Although we find a speed reduction and no accuracy advantage with these methods over standard QWERTY, the text entry experience on mobile devices with these designs is significantly better for users.
},
	keywords = {Mobile Text Entry, touchscreen keyboards},
	doi = {10.1145/3003733.3003743},
	author = {Apostolos Gkoumas and Andreas Komninos and John Garofalakis}
}
@article {62,
	title = {Reflections on design workshops with older adults for touchscreen mobile text entry},
	journal = {Interaction Design and Architecture(s) Journal - IxD\&A},
	volume = {20},
	year = {2014},
	pages = {70-85},
	abstract = {On touchscreen devices such as smartphones and tablets, text entry 
remains key to many tasks and is an important factor in the usability of such 
devices. The physical and cognitive issues associated with ageing can make the 
known problems of text entry particularly acute for older adults. Poor usability 
can present a significant problem for older adults where accessing services and 
social activities are concerned, both of which have implications for exclusion. In a 
study of mobile text entry where we aimed to develop novel keyboard layouts to 
address the particular requirements of this group of users we employed a variety 
of participatory design techniques. We report on our experiences from employing 
these methods and the methodological implications for further research in this 
area. },
	keywords = {Mobile Text Entry, Older Adults, Participatory Design},
	url = {http://www.mifav.uniroma2.it/inevent/events/idea2010/doc/21_5.pdf},
	author = {Andreas Komninos and Emma Nicol and Mark D Dunlop}
}
