Human Computer Interaction

Our research work in Human Computer Interaction (HCI) focuses on two main aspects: i) investigating the impact of human cognitive factors in interactive systems with the aim to more inclusively meet the user requirements and to increase the quality of user experience; and ii) the specification, analysis, design and evaluation of user-centric Web interactive systems in an attempt to develop usable and intelligently designed user interfaces and mechanisms that enable personalized user interactions.

Most of our research work has been published in accredited scientific journals and conferences, among others ACM CHI, Elsevier Journal of Systems and Software, Oxford University Press Interacting with Computers, Springer UMAP and INTERACT. Our research work also received the best research paper award at the Springer SouthCHI 2013 conference and the best research paper award nomination at the Springer UMAP 2014 conference.

Main activities of our work include: i) data collection and analysis of user requirements for online services based on the users’ overall context of use (human and technology specific); ii) design of user models that comprehensively characterize users and capture their needs and requirements; iii) application of methodologies and mechanisms that extract intrinsic values of users such as cognitive processing characteristics; iv) planning and conducting usability and observational studies; v) analyzing qualitative and quantitative data of large samples with statistical analysis tools; vi) adoption of user-centered design principles throughout the whole research and development process; vii) utilization of state of the art Web technologies and languages for developing Web-based and mobile systems and applications.

Related Publications

Journals

2014

Belk M., Fidas C., Germanakos P., Samaras G. (2014) "A Personalised User Authentication Approach based on Individual Differences in Information Processing", Interacting with Computers, Oxford University Press, doi: 10.1093/iwc/iwu033

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Belk M., Germanakos P., Papatheocharous E., Andreou P., & Samaras G. (2014) "Integrating Human Factors and Semantic Markups in Adaptive Interactive Systems", Open Journal of Web Technologies (OJWT), RonPub UG, 2014, Vol. 1(1): 15-26, ISSN: 2199-188X

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Papatheocharous E., Belk M., Germanakos P., Samaras G. (2014) "Towards Implicit User Modeling based on Artificial Intelligence, Cognitive Styles and Web Interaction Data", International Journal on Artificial Intelligence (IJAIT), World Scietific, April 2014, Vol. 23(2): 21 pages, doi: 10.1142/S0218213014400090

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2013

Belk M., Papatheocharous E., Germanakos P., & Samaras G. (2013) "Modeling Users on the World Wide Web based on Cognitive Factors, Navigation Behaviour and Clustering Techniques", Journal of Systems and Software, Special Issue on Web 2.0 Engineering, vol. 86 (2013), pp. 2995– 3012, Elsevier

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Papatheocharous E., Belk M., Germanakos P., & Samaras G. (2013) "Embracing Cognitive Factors and Fuzzy Logic in Adaptive Interactive Systems", International Journal of Engineering Intelligent Systems (EIS), Special Issue on Artificial Intelligence Applications and Innovations 2012, Vol. 21, No. 2/3, CRL Publishing

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Conferences and Workshops

2017

Raptis, G., Katsini, C., Belk, M., Fidas, C., Samaras, G., Avouris, N. (2017) "Using Eye Gaze Data and Visual Activities to Infer Human Cognitive Styles: Method and Feasibility Studies", In Proceedings of the ACM conference on User Modeling, Adaptation and Personalization (UMAP’17), ACM Press, 164-173

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Katsini, C., Fidas, C., Belk, M., Avouris, N., Samaras, G. (2017) "Influences of users’ cognitive strategies on graphical password composition", ACM Human Factors in Computing Systems (CHI 2017), ACM Press, 2698-2705

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Mouzouras, N., Pogiatzis, A., Kleanthous, S., Samaras, G. (2017) "DermaTrack: A Skin Cancer Tracking Intelligent Application", ACM Intelligent User Interfaces (IUI 2017), 85-88

2016

Katsini, C., Belk, M., Fidas, C., Avouris, N., Samaras, G. (2016) "Security and Usability in Knowledge-based User Authentication: A Review", ACM Panhellenic Conference on Informatics (PCI 2016), ACM Press, 63

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Kleanthous, S., Herodotou, C., Samaras, G., Germanakos, P. (2016) "Implicit User Modelling for Extracting Personality Traits through Facebook Activity", HCI International 2016, Toronto, Canada, July 17-22, 2016, pp. 287-297

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Portugal, D., Belk, M., Quintas, J., Christodoulou, E., Samaras, G. (2016) "Identification of an Individual's Frustration in the Work Environment Through a Multi-sensor Computer Mouse", HCI International 2016, Toronto, Canada, July 17-22, 2016, pp. 79-88

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Portugal, D., Belk, M., Hanke, S., Müllner-Rieder, M., Sales Dias, M., Quintas, J., Glauser, C., Christodoulou, E., Samaras, G., Snene, M., Konstantas, D. (2016) "CogniWin: An Integrated Framework to Support Older Adults at Work", ACM International Conference on User Modeling, Adaptation and Personalization (UMAP 2016), Poster, Demo and Late Breaking Results, Halifax, Canada, July 13-16, 2016.

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2015

Belk M., Germanakos P., Andreou P., & Samaras G. (2015) "Towards a Human-centered E-Commerce Personalization Framework", Proceedings of the 2015 IEEE/WIC/ACM International Conference on Web Intelligence (WI 2015), Singapore, December 6-9, 2015, IEEE Computer Society, pp. 357-360

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Hanke S., Meinedo H., Portugal D., Belk M., Quintas J., Christodoulou E., Sili M., Dias M., & Samaras G. (2015) "CogniWin – A Virtual Assistance System for Older Adults at Work", Proceedings of the International Conference on Human-Computer Interaction (HCI International 2015), Los Angeles, USA, Springer-Verlag, HCI (26) 2015: 257-268

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Belk M., Portugal D., Christodoulou E., & Samaras G. (2015) "CogniMouse: On Detecting Users’ Task Completion Difficulty through Computer Mouse Interaction", Proceedings of the Extended Abstracts on Human Factors in Computing Systems (CHI 2015), Seoul, South Korea, ACM Press, 1019-1024

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Fidas C., Hussmann H., Belk M., & Samaras G. (2015) "iHIP: Towards a User Centric Individual Human Interaction Proof Framework", Proceedings of the Extended Abstracts on Human Factors in Computing Systems (CHI 2015), Seoul, South Korea, ACM Press, 2235-2240

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2014

Belk M, Germanakos P., Fidas C., & Samaras G. (2014) "A Personalisation Method based on Human Factors for Improving Usability of User Authentication Tasks", Proceedings of the 22nd International Conference on User Modeling, Adaptation, and Personalization (UMAP 2014), Aalborg, Denmark, July 7-11, 2014, Springer-Verlag Berlin Heidelberg, pp. 13-24 (Best Paper Nominee)

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Belk M., Fidas C., Germanakos P., Samaras G. (2014) "On Supporting Security and Privacy-preserving Interaction through Adaptive Usable Security", Proceedings of the 16th International Conference on Human-Computer Interaction – HCI International 2014 (HCI 2014), Heraklion, Crete, LNCS, Springer-Verlag Berlin Heidelberg, pp. 3-10

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Belk M., Germanakos P., Asimakopoulos S., Andreou P., Mourlas C., Spanoudis G., Samaras G. (2014) "An Individual Differences Approach in Adaptive Waving of User Checkout Process in Retail eCommerce", Proceedings of the 16th International Conference on Human-Computer Interaction – HCI International 2014 (HCI 2014), Heraklion, Crete, LNCS, Springer-Verlag Berlin Heidelberg, pp. 451-460

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Papatheocharous E., Belk M., Nyfjord J., Germanakos P., & Samaras G. (2014) "Personalised Continuous Software Engineering", Proceedings of the 1st International Workshop on Rapid Continuous Software Engineering (RCoSE 2014), in conjuction with ICSE 2014, Hyderabad, India, May 31 - June 7, 2014, ACM Press, New York, NY, pp. 57-62

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2013

Belk M., Fidas C., Germanakos P., & Samaras G. (2013) "Security for Diversity: Studying the Effects of Verbal and Imagery Processes on User Authentication Mechanisms", Proceedings of the 14th IFIP TC13 Conference on Human-Computer Interaction (INTERACT 2013), Cape Town, South Africa, September 2-6, 2013, LNCS, Springer-Verlag Berlin Heidelberg, pp 442-459.

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Belk M., Germanakos P., Fidas C., Spanoudis G., Samaras G. (2013) "Studying the Effect of Human Cognition on Text and Image Recognition CAPTCHA Mechanisms", Proceedings of the 15th International Conference on Human-Computer Interaction – HCI International 2013 (HCI 2013), Las Vegas, Nevada, USA, July 21-26, 2013, LNCS, Springer-Verlag Berlin Heidelberg, pp. 71-79

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Lekkas Z., Germanakos P., Tsianos N., Mourlas C., Samaras G. (2013) "Personality and Emotion as Determinants of the Learning Experience: How Affective Behavior Interacts with various Components of the Learning Process", Proceedings of the 15th International Conference on Human-Computer Interaction – HCI International 2013 (HCI 2013), Las Vegas, Nevada, USA, July 21-26, 2013, LNCS, Springer-Verlag Berlin Heidelberg, pp. 418-427

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Belk M., Germanakos P., Fidas C., Holzinger A., Samaras G. (2013) "Towards the Personalization of CAPTCHA Mechanisms based on Individual Differences in Cognitive Processing", Proceedings of the International Conference on Human Factors in Computing & Informatics (SouthCHI 2013), Maribor, Slovenia, July 1-3, 2013, LNCS, Springer-Verlag Berlin Heidelberg, pp. 409-426. (Best Paper Award)

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Belk M., Germanakos P., Fidas C., Samaras G. (2013) "Studying the Effect of Human Cognition on User Authentication Tasks", Proceedings of the 21st International Conference on User Modeling, Adaptation, and Personalization (UMAP2013), Rome, Italy, June 10-14, 2013, LNCS, Springer-Verlag Berlin Heidelberg, pp. 102-113

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2012

Belk M., Germanakos P., Papatheocharous E., Constantinides M., Samaras G. (2012) "Supporting Adaptive Interactive Systems with Semantic Markups and Human Factors", Proceedings of the 7th International Workshop on Semantic and Social Media Adaptation and Personalization (SMAP 2012), Luxembourg, December 3-4, 2012, IEEE Computer Society, pp. 126-130

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Belk M., Papatheocharous E., Germanakos P., Samaras G. (2012) "Investigating the Relation between Users’ Cognitive Style and Web Navigation Behavior with K-means Clustering", Proceedings of the 9th International Workshop on Web Information Systems Modeling (WISM 2012), in conjunction with ER 2012, Florence, Italy, October 15-18, 2012, LNCS, Springer-Verlag Berlin Heidelberg, pp. 337-346

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Papatheocharous E., Belk M., Germanakos P., Samaras G. (2012) "On Modelling Cognitive Styles of Users in Adaptive Interactive Systems using Artificial Neural Networks", Proceedings of the 4th International Conference on Neural Computation Theory and Applications (NCTA 2012), part of the International Joint Conference of Computational Intelligence (IJCCI), Barcelona, Spain, October 5-7, 2012, pp. 563-569

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Papatheocharous E., Belk M., Germanakos P., Samaras G. (2012) "Proposing a Fuzzy Adaptation Mechanism based on Cognitive Factors of Users for Web Personalization", Proceedings of the 2nd International Workshop on Computational Intelligence in Software Engineering (CISE 2012), in conjunction with AIAI 2012, Halkidiki, Greece, 27-30 September, 2012, LNCS, Springer-Verlag Berlin Heidelberg, pp. 135-144

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Germanakos P., Papatheocharous E., Belk M., Samaras G. (2012) "Data-driven User Profiling to Support Web Adaptation through Cognitive Styles and Navigation Behavior", Proceedings of the 1st Mining Humanistic Data Workshop (MHDW 2012), in conjunction with AIAI 2012, Halkidiki, Greece, 27-30 September, 2012, LNCS, Springer-Verlag Berlin Heidelberg, pp. 500-509

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Belk M., Fidas C., Germanakos P., Samaras G. (2012) "The Effect of Users’ Working Memory on Preference and Performance in Password Mechanisms", Proceedings of the Designing Interactive Secure Systems Workshop at British HCI 2012 (DISS 2012), Birmingham, UK, September 11, 2012

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Belk M., Fidas C., Germanakos P., Samaras G. (2012) "Do Cognitive Styles of Users affect Preference and Performance related to CAPTCHA?", In Proceedings of Extended Abstracts on Human Factors in Computing Systems (CHI12), ACM Press, pp. 1487-1492.

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Belk M., Germanakos P., Zaharias P, and Samaras G. (2012) "Adaptivity Considerations for Enhancing User-Centric Web Experience", Proceedings of the Fifth International Conference on Advances in Computer-Human Interactions (ACHI 2012), January 30 - February 4, 2012, Valencia, Spain, pp. 348-353

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2011

Lekkas Z., Tsianos N., Germanakos P., Mourlas C., & Samaras G. (2011) "The Effects of Personality Type in User-Centered Appraisal Systems", Proceedings of the 14th International Conference on Human-Computer Interaction – HCI International 2011 (HCI 2011), Orlando, Florida, USA, July 9-14, 2011, LNCS 6761, Springer-Verlag Berlin Heidelberg, pp. 388-396

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Zaharias P., Belk M., Germanakos P., & Samaras G. (2011) "User Experience in Educational Virtual Worlds", Proceedings of the 1st European Workshop on HCI Design and Evaluation, Limassol, Cyprus, April 8, 2011, pp. 7-12

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Editorial

2016

Germanakos P., Belk M., Samaras G., Dimitrova V. (2016) "Workshop on Human Aspects in Adaptive and Personalized Interactive Environments (HAAPIE 2016)", held in conjunction with the ACM User Modeling, Adaptation and Personalization Conference (UMAP 2016), Halifax, Nova Scotia, Canada, ACM Press, 2016

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