New publication: A glimpse of mobile text entry errors and corrective behaviour in the wild

Research in mobile text entry has long focused on speed and input errors during lab studies. However, little is known about how input errors emerge in real- world situations or how users deal with these. We present findings from an in-the-wild study of everyday text entry and discuss their implications for future studies.

Komninos, A., Dunlop M. D., Katsaris K., & Garofalakis J. (2018).  A glimpse of mobile text entry errors and corrective behaviour in the wild. Extended Abstracts, Mobile HCI'18. Barcelona, Spain, ACM. DOI:10.1145/3236112.3236143

Judge at CrowdHackathon SmartCity 2 Citylab event (Patras)

I was invited as a scientific expert to be on the judges panel for the Patras Citylab (prep event) for the City Challenge Crowdhackathon #smartcity 2 event. A total of 9 ideas were presented by teams and solo applicants, and we selected the best 3 to move forward to the main event with all their expenses covered (Athens, 28 June - 1st July).

Congratulations to all the winners and good luck to every team that decides to move on to the main event!

New publication: Perceptibility of Mobile Notification Modalities During Multitasking in Smart Environments

Smartphone notifications are a major source of interaction with mobile devices. In this paper we address a gap in literature by establishing a foundation that explains the role of modalities with which a notification is delivered on a mobile device. Though previous studies have attempted to address this question, we find that they suffer from significant internal validity problems. As such we conducted an ecologically valid and carefully designed experiment in a controlled environment that simulates a smart home environment. Our work extends into smart environments, by examining a new modality, implemented by pairing the smartphone to a connected lighting system and replicating mobile notifications to smart light bulbs in the user’s field of vision. We derive a set of guidelines for choosing notification modalities and set future research directions.

Komninos, A., Besharat J., Stefanis V., & Garofalakis J. (2018).  Perceptibility of Mobile Notification Modalities During Multitasking in Smart Environments. 14th International Conference on Intelligent Environments (IE '18). Rome, Italy, IEEE. DOI:10.1109/IE.2018.00011
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New publication: Proceedings of Workshop and Poster Papers of the European Conference on Ambient Intelligence 2015 (AmI-15)

The European Conference on Ambient Intelligence (AmI, is the prime venue for research on Ambient Intelligence, with an international and interdisciplinary character. It brings together researchers from the fields of science, engineering and design, working towards the vision of Ambient Intelligence. AmI-15 was held in Athens, Greece, November 11-13, 2015 ( and provided a meeting point for each of these communities, aiming for intensive networking and scientific debate, as well as shaping visions of the future. This CEUR Volume corresponds to the adjunct proceedings of AmI-15, containing the poster papers as well as the papers presented in the Workshop entitled “Affective Interaction with Avatars”, which was organized by Carsten Stocklöw, Sten Hanke, Maher Ben Moussa, Panayiotis Andreou and Christiana Tsiourti, and held in the scope of the EU-funded Miraculous-Life project ( All the contributions have been reviewed by at least three experts, comprising of members of the AmI-15 Committee and external reviewers, as listed below: Honorary Chair Emile Aarts, Tilburg University, The Netherlands Conference Chairs Achilles Kameas, Hellenic Open University, Greece Irene Mavrommati, Hellenic Open University, Greece Program Chairs Boris De Ruyter, Philips Research, The Netherlands Periklis Chatzimisios, Alexander TEI of Thessaloniki, Greece Thematic Chairs Massimo Zancanaro, Bruno Kessler Foundation, Italy Reiner Wichert, Fraunhofer, Germany Vassilis Kostakos, University of Oulu, Finland Dimitris Charitos, National Kapodistrian University of Athens, Greece Christos Goumopoulos, University of the Aegean, Greece Ioannis Chatzigiannakis, University of Rome La Sapienza, Italy Vanessa Evers, University of Twente, The Netherlands Workshops Chairs Andreas Komninos, University of Strathclyde, UK Vassilis Koutkias, INSERM, Paris, France Posters and Demos Petros Nikopolitidis, Aristotle University of Thessaloniki, Greece Javed Vassilis Khan, Eindhoven University of Technology, The Netherlands

Koutkias, V., Komninos A., Khan J. Vassilis, & Nikopolitidis P. (2015).  Proceedings of Workshop and Poster Papers of the European Conference on Ambient Intelligence 2015 (AmI-15). Ambient Intelligence 2015. 1528, Athens, Greece, CEUR.
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New publication: URQUELL: Using wrist-based gestural interaction to discover POIs in urban environments

In this paper, we discuss the implementation of a prototype application (URQUELL) for the opportunistic discovery of POIs in a urban environment, and the multimodal, non-visual interaction with the system to retrieve details about these. The application works by pointing a smartphone or a wrist- worn sensor kit towards a physical venue location of interest. By retrieving information about the venue pointed at over various APIs, the application presents these to the users via high quality text-to-speech synthesis, negating the need to interact with the smartphone, which can be kept in a user’s pocket at all times. Here, we discuss the implementation details of our prototype and outline future research directions.

Komninos, A., Sarakinos S., Marini L., & Garofalakis J. (2018).  URQUELL: Using wrist-based gestural interaction to discover POIs in urban environments. WristSense 2018: Workshop on Sensing Systems and Applications Using Wrist Worn Smart Devices, Co-located with IEEE PerCom'18. Athens, Greece, IEEE. DOI:10.1109/PERCOMW.2018.8480136
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