"Designing Human-Centred Pervasive Systems" - Summer School in cooperation with BEST (University of Patras Chapter)

BEST Patras Summer Course 2014 is taking place in Patras, Greece on 13-23th of July. Together with the students running the local BEST chapter, we organised this summer course involving 24 students from all over Europe. The purpose was to provide an introduction to Ubiquitous Computing and teach the students the process of converting an idea for a mobile app, to a design that can be tested with real participants.

New publication: Shake ‘n’ Tap: A Gesture Enhanced Keyboard for Older Adults

The need for text entry on smartphones and other touch-screen devices is key for many tasks and also a key factor in the usability of these devices. Physical and cognitive issues associated with age can aggravate the task of text entry for older adults. Technological exclusion due to low usability can present a significant problem both for social and ongoing business-related tasks with older adults. This paper investigates a new touch-screen keyboard design for older adults that combines the familiar QWERTY keyboard layout with physical gesture. User studies with older adults showed our keyboard reduced miss-taps, but was slower to use, and raised issues for further research.

Dunlop, M. D., Komninos A., Nicol E., & Hamilton I. (2014).  Shake ‘n’ Tap: A Gesture Enhanced Keyboard for Older Adults. 16th International Conference on Human-Computer Interaction with Mobile Devices and Services (MobileHCI '14). Toronto, Canada, ACM.
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New publication: A Mobile Shopping Assistant to Support Product Domesticity in Consumer Decisions

In this paper we propose and develop a mobile persuasive application to raise user's interest in specific products, by providing information about each product, focusing on the production country and the origin of the company that produces it. During shopping, the user receives information about each product by optically scanning product barcodes with a mobile device. Recommendations for similar products based on product origin are also provided. In an exploratory evaluation, users indicated that the application was found to be easy to use and was rated useful. Moreover, our experimental results show that the proposed system can significantly affect the decision making process of the users.

Stamopoulos, S-F., Komninos A., & Garofalakis J. (2014).  A Mobile Shopping Assistant to Support Product Domesticity in Consumer Decisions. 18th ACM Panhellenic Conference on Informatics. Athens, Greece, ACM.
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New publication: Discovering And Using The Context Of Distance Learning Activities For The Development Of Pervasive Learning Tools

Over the last few years, there is increasing adoption of distance learning methods in various aspects of education. As part of our research in digital distance learning platforms, we conducted longitudinal observations and a survey on the use of web 2.0 tools in adult education and found that 32% of the students who used such technology, were doing so through mobile devices. Motivated by the students’ use of mobile platforms as learning tools, the aim of this paper is to explore the context under which studying takes place for distance learning students, in order to gain a better understanding of existing practices, with a view of supporting and improving learning experiences through pervasive computing. For this, we started a process of collecting qualitative and quantitative data in order to find out more information about their study context. Our findings from the collected data are paired with post-collection period interviews, providing a quantitative and qualitative description of the context under which distance learning takes place.

Lagiou, E., Komninos A., & Garofalakis J. (2014).  Discovering And Using The Context Of Distance Learning Activities For The Development Of Pervasive Learning Tools. 6th International Conference on Education and New Learning Technologies (EDULEARN 2014). Barcelona, IATED.
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New publication: Using Communication Frequency and Recency Context to Facilitate Mobile Contact List Retrieval

As mobile contact lists get bigger and bigger the cognitive load on the user increases while trying to retrieve the next contact to start a communication session. In this paper we focus on the task of retrieving a contact when the purpose is to start a phone call, examining mobile users’ call logs and showing that it is possible to accurately predict the next contact to be called using relatively simple heuristics and algorithms that describe usage context. The authors present and discuss the results of the proposed method applied on a dataset collected from an experiment the authors organised involving 25 mobile users.

Plessas, A., Stefanis V., Komninos A., & Garofalakis J. (2013).  Using Communication Frequency and Recency Context to Facilitate Mobile Contact List Retrieval. International Journal of Handheld Computing Research (IJHCR). 4(4), 52-71.. DOI:10.4018/ijhcr.2013100104
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