Marios Belk

Publication Activity (10 Years)

Years Active: 2007-2023
Publications (10 Years): 54

Top Topics

Individual Differences

User Authentication

Identity Management

Human Cognition

Top Venues

UMAP (Adjunct Publication)

CHI Extended Abstracts

Publications

Argyris Constantinides, José N. Faria, Taoufik Sousak, Pedro Martins, David Portugal, Marios Belk, Andreas Pitsillides, Christos Fidas
TRUSTID: Intelligent and Continuous Online Student Identity Management in Higher Education. UMAP (Adjunct Publication) (2023)
Argyris Constantinides, Marios Belk, Christos Fidas, Roy Beumers, David Vidal, Wanting Huang, Juliana Bowles, Thais Webber, Agastya Silvina, Andreas Pitsillides
Security and Usability of a Personalized User Authentication Paradigm: Insights from a Longitudinal Study with Three Healthcare Organizations. ACM Trans. Comput. Heal. 4 (1) (2023)
José Nuno Faria, David Portugal, Pedro Martins, Marios Belk, Argyris Constantinides, Andreas Pitsillides, Christos Fidas
Image-based Face Verification for Student Identity Management - the TRUSTID Case Study. UMAP (Adjunct Publication) (2023)
David Portugal, José N. Faria, Marios Belk, Pedro Martins, Argyris Constantinides, Anna Maria Pietron, Andreas Pitsillides, Nikolaos M. Avouris, Christos A. Fidas
Continuous user identification in distance learning: a recent technology perspective. Smart Learn. Environ. 10 (1) (2023)
Argyris Constantinides, Marios Belk, Christos Fidas, Juliana Bowles, Andreas Pitsillides
APPS 2022: Fourth International Workshop on Adaptive and Personalized Privacy and Security. UMAP (Adjunct Publication) (2022)
Thais Webber, Juliana Bowles, Argyris Constantinides, Marios Belk, Emma Morley
Evaluating a Smart Healthcare System Design Through Participatory Approach. ICIMTH (2022)
Christos Fidas, Marios Belk, Christodoulos Constantinides, Argyris Constantinides, Andreas Pitsillides
A Field Dependence-Independence Perspective on Eye Gaze Behavior within Affective Activities. INTERACT (1) (2021)
Argyris Constantinides, Marios Belk, Christos Fidas, Juliana Bowles, Andreas Pitsillides
APPS 2021: Third International Workshop on Adaptive and Personalized Privacy and Security. UMAP (Adjunct Publication) (2021)
Argyris Constantinides, Marios Belk, Christos Fidas, Andreas Pitsillides
Understanding Insider Attacks in Personalized Picture Password Schemes. INTERACT (4) (2021)
Christos Fidas, Marios Belk, David Portugal, Andreas Pitsillides
Privacy-preserving Biometric-driven Data for Student Identity Management: Challenges and Approaches. UMAP (Adjunct Publication) (2021)
Argyris Constantinides, Christos Fidas, Marios Belk, Anna Maria Pietron, Ting Han, Andreas Pitsillides
From hot-spots towards experience-spots: Leveraging on users' sociocultural experiences to enhance security in cued-recall graphical authentication. Int. J. Hum. Comput. Stud. 149 (2021)
Christodoulos Constantinides, Argyris Constantinides, Marios Belk, Christos Fidas, Andreas Pitsillides
A Comparative Study among Different Computer Vision Algorithms for Assisting Users in Picture Password Composition. UMAP (Adjunct Publication) (2021)
Pantelitsa Leonidou, Argyris Constantinides, Marios Belk, Christos Fidas, Andreas Pitsillides
Eye Gaze and Interaction Differences of Holistic Versus Analytic Users in Image-Recognition Human Interaction Proof Schemes. HCI (27) (2021)
Marios Belk, Christos Fidas, Eleni Katsi, Argyris Constantinides, Andreas Pitsillides
An Empirical Study of Picture Password Composition on Smartwatches. INTERACT (4) (2021)
Argyris Constantinides, Christodoulos Constantinides, Marios Belk, Christos Fidas, Andreas Pitsillides
Applying Benford's Law as an Efficient and Low-cost Solution for Verifying the Authenticity of Users' Video Streams in Learning Management Systems. WI/IAT (2021)
Argyris Constantinides, Anna Maria Pietron, Marios Belk, Christos Fidas, Ting Han, Andreas Pitsillides
A Cross-cultural Perspective for Personalizing Picture Passwords. UMAP (2020)
Andreas Costi, Marios Belk, Christos Fidas, Argyris Constantinides, Andreas Pitsillides
CogniKit: An Extensible Tool for Human Cognitive Modeling based on Eye Gaze Analysis. IUI Companion (2020)
Argyris Constantinides, Marios Belk, Christos Fidas, Andreas Pitsillides
Design and Development of a Patient-centric User Authentication System. UMAP (Adjunct Publication) (2020)
Marios Belk, Christos Fidas, Juliana Bowles, Elias Athanasopoulos, Andreas Pitsillides
APPS 2020: Second International Workshop on Adaptive and Personalized Privacy and Security. UMAP (2020)
Marios Belk, Christos Fidas, Juliana Bowles, Elias Athanasopoulos, Andreas Pitsillides
Adaptive and Personalized Privacy and Security (APPS 2020): Workshop Chairs' Welcome. UMAP (Adjunct Publication) (2020)
Argyris Constantinides, Marios Belk, Christos Fidas, Andreas Pitsillides
An eye gaze-driven metric for estimating the strength of graphical passwords based on image hotspots. IUI (2020)
Christina P. Katsini, Christos Fidas, Marios Belk, George Samaras, Nikolaos M. Avouris
A Human-Cognitive Perspective of Users' Password Choices in Recognition-Based Graphical Authentication. Int. J. Hum. Comput. Interact. 35 (19) (2019)
Argyris Constantinides, Christos Fidas, Marios Belk, Andreas Pitsillides
"I Recall this Picture": Understanding Picture Password Selections based on Users' Sociocultural Experiences. WI (2019)
Vladimir Janjic, Michael Vinov, Thomas Given-Wilson, Axel Legay, Euan Blackledge, R. Arredouani, George Stylianou, W. Huang, Juliana Küster Filipe Bowles, Andreas Francois Vermeulen, Agastya Silvina, Marios Belk, Christos Fidas, Andreas Pitsillides, M. Kumar, Michael Rossbory
The SERUMS tool-chain: Ensuring Security and Privacy of Medical Data in Smart Patient-Centric Healthcare Systems. IEEE BigData (2019)
Marios Belk, Christos Fidas, Elias Athanasopoulos, Andreas Pitsillides
Adaptive and Personalized Privacy and Security (APPS 2019): Workshop Chairs' Welcome and Organization. UMAP (Adjunct Publication) (2019)
Argyris Constantinides, Christos Fidas, Marios Belk, Andreas Pitsillides
On the Personalization of Image Content in Graphical Passwords based on Users' Sociocultural Experiences: New Challenges and Opportunities. UMAP (Adjunct Publication) (2019)
Georgios M. Hadjidemetriou, Marios Belk, Christos Fidas, Andreas Pitsillides
Picture Passwords in Mixed Reality: Implementation and Evaluation. CHI Extended Abstracts (2019)
Argyris Constantinides, Marios Belk, Christos Fidas, Andreas Pitsillides
On the Accuracy of Eye Gaze-driven Classifiers for Predicting Image Content Familiarity in Graphical Passwords. UMAP (2019)
Vladimir Janjic, Juliana Bowles, Marios Belk, Andreas Pitsillides
Security And Privacy Of Medical Data: Challenges For Next-Generation Patient-Centric Healthcare Systems. UMAP (Adjunct Publication) (2019)
Marios Belk, Christos Fidas, Andreas Pitsillides
FlexPass: Symbiosis of Seamless User Authentication Schemes in IoT. CHI Extended Abstracts (2019)
Christos Fidas, Marios Belk, Georgios M. Hadjidemetriou, Andreas Pitsillides
Influences of Mixed Reality and Human Cognition on Picture Passwords: An Eye Tracking Study. INTERACT (2) (2019)
Argyris Constantinides, Christos Fidas, Marios Belk, George Samaras
On sociocultural-centered graphical passwords: an initial framework. MobileHCI Adjunct (2018)
Christina P. Katsini, Christos Fidas, George E. Raptis, Marios Belk, George Samaras, Nikolaos M. Avouris
Eye Gaze-driven Prediction of Cognitive Differences during Graphical Password Composition. IUI (2018)
Christina P. Katsini, Christos Fidas, George E. Raptis, Marios Belk, George Samaras, Nikolaos M. Avouris
Influences of Human Cognition and Visual Behavior on Password Strength during Picture Password Composition. CHI (2018)
Argyris Constantinides, Marios Belk, Christos Fidas, George Samaras
On Cultural-centered Graphical Passwords: Leveraging on Users' Cultural Experiences for Improving Password Memorability. UMAP (2018)
David Portugal, Luís Santos, Pedro Trindade, Christophoros Christophorou, Panayiotis Andreou, Dimosthenis Georgiadis, Marios Belk, João Freire, Paulo Alvito, George Samaras, Eleni Christodoulou, Jorge Dias
SocialRobot: Towards a Personalized Elderly Care Mobile Robot. CoRR (2018)
Marios Belk, Christos Fidas, Panagiotis Germanakos, George Samaras
The interplay between humans, technology and user authentication: A cognitive processing perspective. Comput. Hum. Behav. 76 (2017)
Marios Belk, Andreas Pamboris, Christos Fidas, Christina P. Katsini, Nikolaos M. Avouris, George Samaras
Sweet-spotting security and usability for intelligent graphical authentication mechanisms. WI (2017)
George E. Raptis, Christina P. Katsini, Marios Belk, Christos Fidas, George Samaras, Nikolaos M. Avouris
Using Eye Gaze Data and Visual Activities to Infer Human Cognitive Styles: Method and Feasibility Studies. UMAP (2017)
Christina P. Katsini, Christos Fidas, Marios Belk, Nikolaos M. Avouris, George Samaras
Influences of Users' Cognitive Strategies on Graphical Password Composition. CHI Extended Abstracts (2017)
Marios Belk, Christos Fidas, Christina P. Katsini, Nikolaos M. Avouris, George Samaras
Effects of Human Cognitive Differences on Interaction and Visual Behavior in Graphical User Authentication. INTERACT (3) (2017)
Christina P. Katsini, Marios Belk, Christos Fidas, Nikolaos M. Avouris, George Samaras
Security and Usability in Knowledge-based User Authentication: A Review. PCI (2016)
David Portugal, Miguel Sales Dias, Eleni Christodoulou, Marios Belk, João Quintas, Pedro Nunes, George Samaras, Sten Hanke, Markus Müllner-Rieder, Christoph Glauser, Mehdi Snene, Dimitri Konstantas
CogniWin: An Integrated Framework to Support Older Adults at Work. UMAP (Extended Proceedings) (2016)
David Portugal, Marios Belk, João Quintas, Eleni Christodoulou, George Samaras
Identification of an Individual's Frustration in the Work Environment Through a Multi-sensor Computer Mouse. HCI (25) (2016)
Marios Belk, David Portugal, Panagiotis Germanakos, João Quintas, Eleni Christodoulou, George Samaras
A Computer Mouse for Stress Identification of Older Adults at Work. UMAP (Extended Proceedings) (2016)
Marios Belk, David Portugal, Eleni Christodoulou, George Samaras
CogniMouse: On Detecting Users' Task Completion Difficulty through Computer Mouse Interaction. CHI Extended Abstracts (2015)
Marios Belk, Christos Fidas, Panagiotis Germanakos, George Samaras
Do human cognitive differences in information processing affect preference and performance of CAPTCHA? Int. J. Hum. Comput. Stud. 84 (2015)
Sten Hanke, Hugo Meinedo, David Portugal, Marios Belk, João Quintas, Eleni Christodoulou, Miroslav Sili, Miguel Sales Dias, George Samaras
CogniWin - A Virtual Assistance System for Older Adults at Work. HCI (26) (2015)
Panagiotis Germanakos, Marios Belk, Argyris Constantinides, George Samaras
The PersonaWeb System: Personalizing E-Commerce Environments based on Human Factors. UMAP Workshops (2015)
Marios Belk, Panagiotis Germanakos, Panayiotis Andreou, George Samaras
Towards a Human-Centered E-Commerce Personalization Framework. WI-IAT (1) (2015)
Argyris Constantinides, Marios Belk, Panagiotis Germanakos, George Samaras
The PersonaCheck System for Personalizing M-Commerce Checkout Processes. MDM (1) (2015)
Marios Belk, Panagiotis Germanakos, Argyris Constantinides, George Samaras
A Human Cognitive Processing Perspective in Designing E-Commerce Checkout Processes. INTERACT (1) (2015)
Marios Belk, Christos Fidas, Panagiotis Germanakos, George Samaras
A Personalized User Authentication Approach Based on Individual Differences in Information Processing. Interact. Comput. 27 (6) (2015)
Christos Fidas, Heinrich Hussmann, Marios Belk, George Samaras
iHIP: Towards a User Centric Individual Human Interaction Proof Framework. CHI Extended Abstracts (2015)
Efi Papatheocharous, Marios Belk, Panagiotis Germanakos, George Samaras
Towards Implicit User Modeling Based on Artificial Intelligence, Cognitive Styles and Web Interaction Data. Int. J. Artif. Intell. Tools 23 (2) (2014)
Efi Papatheocharous, Marios Belk, Jaana Nyfjord, Panagiotis Germanakos, George Samaras
Personalised continuous software engineering. RCoSE (2014)
Marios Belk, Panagiotis Germanakos, Stavros Asimakopoulos, Panayiotis Andreou, Constantinos Mourlas, George Spanoudis, George Samaras
An Individual Differences Approach in Adaptive Waving of User Checkout Process in Retail eCommerce. HCI (18) (2014)
Marios Belk, Christos Fidas, Panagiotis Germanakos, George Samaras
On Supporting Security and Privacy-Preserving Interaction through Adaptive Usable Security. HCI (24) (2014)
Marios Belk, Panagiotis Germanakos, Christos Fidas, George Samaras
A Personalization Method Based on Human Factors for Improving Usability of User Authentication Tasks. UMAP (2014)
Marios Belk, Panagiotis Germanakos, Efi Papatheocharous, Panayiotis Andreou, George Samaras
Integrating Human Factors and Semantic Mark-ups in Adaptive Interactive Systems. Open J. Web Technol. 1 (1) (2014)
Marios Belk, Panagiotis Germanakos, Christos Fidas, George Samaras
Studying the Effect of Human Cognition on User Authentication Tasks. UMAP (2013)
Marios Belk, Panagiotis Germanakos, Christos Fidas, Andreas Holzinger, George Samaras
Towards the Personalization of CAPTCHA Mechanisms Based on Individual Differences in Cognitive Processing. SouthCHI (2013)
Marios Belk, Efi Papatheocharous, Panagiotis Germanakos, George Samaras
Modeling users on the World Wide Web based on cognitive factors, navigation behavior and clustering techniques. J. Syst. Softw. 86 (12) (2013)
Marios Belk, Christos Fidas, Panagiotis Germanakos, George Samaras
Security for Diversity: Studying the Effects of Verbal and Imagery Processes on User Authentication Mechanisms. INTERACT (3) (2013)
Marios Belk, Panagiotis Germanakos, Christos Fidas, George Spanoudis, George Samaras
Studying the Effect of Human Cognition on Text and Image Recognition CAPTCHA Mechanisms. HCI (27) (2013)
Marios Belk, Panagiotis Germanakos, Efi Papatheocharous, Marios Constantinides, George Samaras
Supporting Adaptive Interactive Systems with Semantic Markups and Human Factors. SMAP (2012)
Efi Papatheocharous, Marios Belk, Panagiotis Germanakos, George Samaras
Proposing a Fuzzy Adaptation Mechanism Based on Cognitive Factors of Users for Web Personalization. AIAI (2) (2012)
Panayiotis Andreou, Panagiotis Germanakos, Andreas Konstantinidis, Dimosthenis Georgiadis, Marios Belk, George Samaras
Towards User-centric Social Networks. WEBIST (2012)
Panagiotis Zaharias, Marios Belk, George Samaras
Employing virtual worlds for HCI education: a problem-based learning approach. CHI Extended Abstracts (2012)
Efi Papatheocharous, Marios Belk, Panagiotis Germanakos, George Samaras
On Modelling Cognitive Styles of Users in Adaptive Interactive Systems using Artificial Neural Networks. IJCCI (2012)
Panayiotis Andreou, Panagiotis Germanakos, Andreas Konstantinidis, Dimosthenis Georgiadis, Marios Belk, George Samaras
USN: An Optimization Framework for User-centric Social Networks. CSE (2012)
Marios Belk, Christos Fidas, Panagiotis Germanakos, George Samaras
Do cognitive styles of users affect preference and performance related to CAPTCHA challenges? CHI Extended Abstracts (2012)
Panagiotis Germanakos, Efi Papatheocharous, Marios Belk, George Samaras
Data-Driven User Profiling to Support Web Adaptation through Cognitive Styles and Navigation Behavior. AIAI (2) (2012)
Marios Belk, Efi Papatheocharous, Panagiotis Germanakos, George Samaras
Investigating the Relation between Users' Cognitive Style and Web Navigation Behavior with K-means Clustering. ER Workshops (2012)
Panagiotis Germanakos, Marios Belk, Nikos Tsianos, Zacharias Lekkas, Constantinos Mourlas, George Samaras
An ontological cognitive user model for adapting generic Web structures. SMAP (2010)
Panagiotis Germanakos, Marios Belk, Zacharias Lekkas, Constantinos Mourlas, Georgia Kleanthous, George Samaras
Adapting mLearning Environments on Learners' Cognitive Styles and Visual Working Memory Span. MCIS (2010)
Panagiotis Germanakos, Nikos Tsianos, Zacharias Lekkas, Constantinos Mourlas, Marios Belk, George Samaras
Proposing Web Design Enhancements Based on Specific Cognitive Factors: An Empirical Evaluation. Web Intelligence (2009)
Nikos Tsianos, Panagiotis Germanakos, Zacharias Lekkas, Costas Mourlas, George Samaras, Marios Belk
Working Memory Differences in E-Learning Environments: Optimization of Learners' Performance through Personalization. UMAP (2009)
Panagiotis Germanakos, Nikos Tsianos, Zacharias Lekkas, Costas Mourlas, Marios Belk, George Samaras
Intelligent Authoring Tools for Enhancing Mass Customization of e-Services - The smarTag Framework. ICEIS (5) (2009)
Panagiotis Germanakos, Nikos Tsianos, Zacharias Lekkas, Marios Belk, Constantinos Mourlas, George Samaras
Human Factors As A Parameter For Improving Interface Usability And User Satisfaction. MCIS (2009)
Panagiotis Germanakos, Marios Belk, Nikos Tsianos, Zacharias Lekkas, Constantinos Mourlas, George Samaras
Towards a Human Factors Ontology for Computer-Mediated Systems*. OTM Workshops (2008)
Panagiotis Germanakos, Nikos Tsianos, Zacharias Lekkas, Constantinos Mourlas, Marios Belk, George Samaras
A Semantic Approach of an Adaptive and Personalized Web-Based Learning Content-The Case of AdaptiveWeb. SMAP (2007)
Panagiotis Germanakos, Nikos Tsianos, Zacharias Lekkas, Constantinos Mourlas, Marios Belk, George Samaras
Embracing Cognitive Aspects in Web Personalization Environments -- The AdaptiveWeb Architecture. ICALT (2007)