| 2021 | HCI | Eye Gaze and Interaction Differences of Holistic Versus Analytic Users in Image-Recognition Human Interaction Proof Schemes. | Pantelitsa Leonidou, Argyris Constantinides, Marios Belk, Christos Fidas, Andreas Pitsillides |
| 2021 | Interact | An Empirical Study of Picture Password Composition on Smartwatches. | Marios Belk, Christos Fidas, Eleni Katsi, Argyris Constantinides, Andreas Pitsillides |
| 2021 | Interact | Understanding Insider Attacks in Personalized Picture Password Schemes. | Argyris Constantinides, Marios Belk, Christos Fidas, Andreas Pitsillides |
| 2021 | Interact | A Field Dependence-Independence Perspective on Eye Gaze Behavior within Affective Activities. | Christos Fidas, Marios Belk, Christodoulos Constantinides, Argyris Constantinides, Andreas Pitsillides |
| 2020 | IUI | An eye gaze-driven metric for estimating the strength of graphical passwords based on image hotspots. | Argyris Constantinides, Marios Belk, Christos Fidas, Andreas Pitsillides |
| 2020 | IUI | CogniKit: An Extensible Tool for Human Cognitive Modeling based on Eye Gaze Analysis. | Andreas Costi, Marios Belk, Christos Fidas, Argyris Constantinides, Andreas Pitsillides |
| 2019 | CHI | FlexPass: Symbiosis of Seamless User Authentication Schemes in IoT. | Marios Belk, Christos Fidas, Andreas Pitsillides |
| 2019 | CHI | Picture Passwords in Mixed Reality: Implementation and Evaluation. | Georgios M. Hadjidemetriou, Marios Belk, Christos Fidas, Andreas Pitsillides |
| 2019 | Interact | Influences of Mixed Reality and Human Cognition on Picture Passwords: An Eye Tracking Study. | Christos Fidas, Marios Belk, Georgios M. Hadjidemetriou, Andreas Pitsillides |
| 2018 | CHI | Influences of Human Cognition and Visual Behavior on Password Strength during Picture Password Composition. | Christina P. Katsini, Christos Fidas, George E. Raptis, Marios Belk, George Samaras, Nikolaos M. Avouris |
| 2018 | IUI | Eye Gaze-driven Prediction of Cognitive Differences during Graphical Password Composition. | Christina P. Katsini, Christos Fidas, George E. Raptis, Marios Belk, George Samaras, Nikolaos M. Avouris |
| 2017 | CHI | Influences of Users' Cognitive Strategies on Graphical Password Composition. | Christina P. Katsini, Christos Fidas, Marios Belk, Nikolaos M. Avouris, George Samaras |
| 2017 | Interact | Effects of Human Cognitive Differences on Interaction and Visual Behavior in Graphical User Authentication. | Marios Belk, Christos Fidas, Christina P. Katsini, Nikolaos M. Avouris, George Samaras |
| 2016 | HCI | Identification of an Individual's Frustration in the Work Environment Through a Multi-sensor Computer Mouse. | David Portugal, Marios Belk, Joo Quintas, Eleni Christodoulou, George Samaras |
| 2015 | CHI | CogniMouse: On Detecting Users' Task Completion Difficulty through Computer Mouse Interaction. | Marios Belk, David Portugal, Eleni Christodoulou, George Samaras |
| 2015 | CHI | iHIP: Towards a User Centric Individual Human Interaction Proof Framework. | Christos Fidas, Heinrich Hussmann, Marios Belk, George Samaras |
| 2015 | HCI | CogniWin - A Virtual Assistance System for Older Adults at Work. | Sten Hanke, Hugo Meinedo, David Portugal, Marios Belk, Joo Quintas, Eleni Christodoulou, Miroslav Sili, Miguel Sales Dias, George Samaras |
| 2015 | Interact | A Human Cognitive Processing Perspective in Designing E-Commerce Checkout Processes. | Marios Belk, Panagiotis Germanakos, Argyris Constantinides, George Samaras |
| 2015 | MDM | The PersonaCheck System for Personalizing M-Commerce Checkout Processes. | Argyris Constantinides, Marios Belk, Panagiotis Germanakos, George Samaras |
| 2014 | HCI | On Supporting Security and Privacy-Preserving Interaction through Adaptive Usable Security. | Marios Belk, Christos Fidas, Panagiotis Germanakos, George Samaras |
| 2014 | HCI | An Individual Differences Approach in Adaptive Waving of User Checkout Process in Retail eCommerce. | Marios Belk, Panagiotis Germanakos, Stavros Asimakopoulos, Panayiotis Andreou, Constantinos Mourlas, George Spanoudis, George Samaras |
| 2014 | ICSE | Personalised continuous software engineering. | Efi Papatheocharous, Marios Belk, Jaana Nyfjord, Panagiotis Germanakos, George Samaras |
| 2013 | HCI | Studying the Effect of Human Cognition on Text and Image Recognition CAPTCHA Mechanisms. | Marios Belk, Panagiotis Germanakos, Christos Fidas, George Spanoudis, George Samaras |
| 2013 | Interact | Security for Diversity: Studying the Effects of Verbal and Imagery Processes on User Authentication Mechanisms. | Marios Belk, Christos Fidas, Panagiotis Germanakos, George Samaras |
| 2012 | CHI | Do cognitive styles of users affect preference and performance related to CAPTCHA challenges? | Marios Belk, Christos Fidas, Panagiotis Germanakos, George Samaras |
| 2012 | CHI | Employing virtual worlds for HCI education: a problem-based learning approach. | Panagiotis Zaharias, Marios Belk, George Samaras |
| 2012 | ER | Investigating the Relation between Users' Cognitive Style and Web Navigation Behavior with K-means Clustering. | Marios Belk, Efi Papatheocharous, Panagiotis Germanakos, George Samaras |
| 2012 | IJCCI | On Modelling Cognitive Styles of Users in Adaptive Interactive Systems using Artificial Neural Networks. | Efi Papatheocharous, Marios Belk, Panagiotis Germanakos, George Samaras |
| 2012 | WEBIST | Towards User-centric Social Networks. | Panayiotis Andreou, Panagiotis Germanakos, Andreas Konstantinidis, Dimosthenis Georgiadis, Marios Belk, George Samaras |
| 2007 | ICALT | Embracing Cognitive Aspects in Web Personalization Environments -- The AdaptiveWeb Architecture. | Panagiotis Germanakos, Nikos Tsianos, Zacharias Lekkas, Constantinos Mourlas, Marios Belk, George Samaras |