Welcome

Currently I am an Assistant Professor in the Department of Cultural Heritage Management and New Technologies, University of Patras, and a Research Associate at the HCI Group of the Interactive Systems Laboratory. I received a PhD from the Electrical & Computer Engineering Department, University of Patras.

My research is related with investigating the influence of human aspects in cultural heritage informatics and usable & secure information systems aiming to drive the design and development of bootstrapped solutions to the unique cultural and cognitive characteristics of the end-users.

Email: fidas AT upatras.gr :: LinkedIn Profile: https://www.linkedin.com/in/fidas

Find me also at

Highlights

[May 2018] I enjoyed coming back to the University of Cyprus in the context of Erasmus+ Staff Mobility for Teaching Programme. During my stay I had the opportunity to meet my former colleagues and friends and exchange interesting ideas for research. I was also honored to give a talk at the Computer Science Colloquium Series at UCY and give seminars to Ph.D., M.Sc. and B.Sc. students on topics related to information systems, cultural heritage and usable security.

[April 2018] Congrats to Argyris Constantinides for his first regular paper at ACM SIGCHI UMAP 2018 concerning his Ph.D. thesis. The paper is entitled "On Cultural-centered Adaptive Graphical Passwords: Improving Password Memorability based on Users’ Collective Memories". Wishes for many more success.

[April 2018] Paper accepted at ACM SIGCHI Eye Tracking Research & Applications (ETRA 2018), entitled "Towards Gaze-Based Quantification of the Security of Graphical Authentication Schemes"

[March 2018] Invited talk, "Human-Centered Design and Evaluation of Digitized Cultural Heritage Experiences", at the 4th Thematic Seminar on "Digitization of Monuments and Archaeological Sites" in the context of the European Project "Collaborative Digitization of Natural and Cultural Heritage, CD-ETA" of the Programme "INTERREG EUROPE".

[February 2018] Journal paper accepted at the International Journal of Human-Computer Studies, entitled "Effects of Mixed-Reality on Players' Behaviour and Immersion in a Cultural Tourism Game: A Cognitive Processing Perspective"

[December 2017] Full paper accepted at ACM SIGCHI 2018, entitled "Influences of Human Cognition and Visual Behavior on Password Security during Picture Password Composition"

[December 2017] Paper accepted for inclusion in the ACM SIGCHI IUI 2018 Papers' Programme, entitled "Eye Gaze-driven Prediction of Cognitive Differences during Graphical Password Composition"

[April 2017] Paper accepted at ACM SIGCHI UMAP 2017, entitled "Using Eye Gaze Data and Visual Activities to Infer Human Cognitive Styles: Method and Feasibility Studies"

[September 2016] Paper accepted at ACM SIGCHI CHI Play 2016, entitled "Do Field Dependence-Independence Differences of Game Players Affect Performance and Behaviour in Cultural Heritage Games?"

Patents

• German Patent & Trade Mark Office (Deutsches Patent- und Markenamt): Method and apparatus for flexible user authentication based on individual human cognitive characteristics (Methode und vorrichtung zur flexiblen benutzerauthentifizierung basierend auf individuellen menschlichen kognitiven eigenschaften) – patent pending
• Greek Industrial Property Organisation (Οργανισμός Βιομηχανικής Ιδιοκτησίας): Methods and tools to support and monitor in real time visitors of the World Wide Web (N. Patent No. 1004805.OVI, INT. CL G06F 17/60, g06f 15/163)

Selected Publications

Information Systems and Culture

ACM UMAP 2018

Constantinides, A., Belk, M., Fidas, C., Samaras, G. (2018). On Cultural-centered Adaptive Graphical Passwords: Improving Password Memorability based on Users’ Collective Memories, ACM SIGCHI User Modeling, Adaptation and Personalization (UMAP 2018), ACM Press (to appear)

ACM CHI EA 2018

Raptis, G., Fidas, C., Katsini, C., Avouris, N. (2018). Towards a Cognition-Centered Personalization Framework for Cultural-Heritage Content, ACM SIGCHI Human Factors in Computing Systems (CHI 2018), ACM Press (to appear)

Elsevier IJHCS

Raptis, G., Fidas, C.A., Avouris, N. (2018). Effects of mixed-reality on players' behaviour and immersion in a cultural tourism game: A cognitive processing perspective, International Journal of Human-Computer Studies, Elsevier [https://doi.org/10.1016/j.ijhcs.2018.02.003]

ACM CHI Play 2016

Raptis, G., Fidas, C.A., Avouris, N. (2016). Do field dependence-independence differences of game players affect performance and behaviour in cultural heritage games?, ACM SIGCHI Computer-Human Interaction in Play (CHI PLAY 2016), ACM Press, 38-43 [https://doi.org/10.1145/2967934.2968107]

ACM CHI 2011

Fidas, C.A., Voyiatzis, A.G., Avouris, N.M. (2011). On the necessity of user-friendly captcha. ACM SIGCHI Human Factors in Computing Systems (CHI 2011), ACM Press, 2623-2626 [http://dx.doi.org/10.1145/1978942.1979325]

Eye Tracking, Cognition and User Modeling

ACM ETRA 2018

Katsini, C., Raptis, G., Fidas, C., Avouris, N. (2018). Towards Gaze-Based Quantification of the Security of Graphical Authentication Schemes, ACM SIGCHI Symposium on Eye Tracking Research & Applications (ETRA 2018), ACM Press (to appear)

ACM IUI 2018

Katsini, C., Fidas, C., Raptis, G., Belk, M., Samaras, G., Avouris, N. (2018). Eye gaze-driven prediction of cognitive differences during graphical password composition. ACM SIGCHI Intelligent User Interfaces (IUI 2018), ACM Press, 147-152 [https://doi.org/10.1145/3172944.3172996]

ACM UMAP 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, ACM SIGCHI User Modeling, Adaptation and Personalization (UMAP 2017), ACM Press, 164-173 [https://doi.org/10.1145/3079628.3079690]

ACM CHI 2017

Raptis, G., Fidas, C., Avouris, N. (2017). On implicit elicitation of cognitive strategies using gaze transition entropies in pattern recognition tasks, ACM SIGCHI Human Factors in Computing Systems (CHI EA 2017), ACM Press, 1993-2000 [https://doi.org/10.1145/3027063.3053106]

Usable Security: User Authentication and Human Interaction Proofs

ACM CHI 2018

Katsini, C., Fidas, C., Raptis, G., Belk, M., Samaras, G., & Avouris, N. (2018). Influences of human cognition and visual behavior on password security during picture password composition. ACM SIGCHI Human Factors in Computing Systems (CHI 2018), ACM Press (accepted)

Elsevier CHB

Belk M., Fidas C., Germanakos P., & Samaras G. (2017) The interplay between humans, technology and user authentication: a cognitive processing perspective, Computers in Human Behavior (CHB), 76, 184-200, Elsevier [https://doi.org/10.1016/j.chb.2017.06.042]

Elsevier IJHCS

Belk M., Fidas C., Germanakos P., & Samaras G. (2015) Do human cognitive differences in information processing affect preference and performance of captcha?, International Journal of Human - Computer Studies (IJHCS), 84, 1-18, Elsevier [http://dx.doi.org/10.1016/j.ijhcs.2015.07.002]

Computer Supported Collaborative Learning

Elsevier Comp. Ed.

Fidas, C.A., Komis, V., Tzanavaris, S., Avouris, N. (2005). Heterogeneity of learning material in synchronous computer-supported collaborative modelling. Computers and Education, 44 (2), 135-154, Elsevier [http://dx.doi.org/10.1016/j.compedu.2004.02.001]

Springer Ed. IT

Komis, V., Avouris, N., Fidas, C.A. (2002). Computer supported collaborative concept mapping: Study of interaction. Education and Information Technologies, 7:2, 169-188, Springer-Verlag [http://dx.doi.org/10.1023/A:1020309927987]

LEA CSCL 2002

Fidas, C.A., Komis, V., Avouris, N., Dimitracopoulou, A. (2002). Collaborative problem solving using an open modeling environment. Computer Support For Collaborative Learning: Foundations For A CSCL Community (CSCL 2002), Lawrence Erlbaum Associates, 654-655

Projects

I have worked as a project manager, user experience expert and information systems architect in numerous EU-funded, National and industrial research projects like:

• FP7-CR-PLAY: Capture Reconstruct Play (2013-2016, WP5 Leader - Formative and Summative Evaluation) - http://www.cr-play.eu
• FP7-SERIES: Seismic Engineering Research Infrastructures for European Synergies (2009-2013, Lead of Information Systems Architecture Design and Implementation) - http://www.series.upatras.gr
• FP6-QALIBRA: Quality of life-integrated benefit and risk analysis web-based tool for assessing food safety and health benefits (2006-2010, Lead of Evaluation) - http://www.qalibra.eu
• FP6 e-Ten-COMMODE: Collaborative modeling environment (2005-2006, Lead of Evaluation and Pilot Studies)
• IST-MODELLINGSPACE: Space of ideas expression modeling and collaboration (2001-2004, Software Engineer)

Teaching

Advising