Christos Fidas

109 papers A* 2A 9B 6Misc 2Journal 19Unranked 69
YearRankTypeTitle / Venue / Authors
2025 — conf
An AI-Driven Cybersecurity Framework for Cultural Heritage Management Systems: Preventing Phishing Attacks and Ensuring Data Integrity.
IISA
Zois Koukopoulos, Dimitrios Koukopoulos, Christos Fidas
2025 J jnl
Evaluating Uses of XR in Fostering Art Students' Learning.
Multimodal Technol. Interact.
Panagiotis Dafiotis, Stella Sylaiou, Efstratios Stylianidis, Dimitrios Koukopoulos, Christos Fidas
2024 — conf
CulturAI: Exploring Mixed Reality Art Exhibitions with Large Language Models for Personalized Immersive Experiences.
UMAP (Adjunct Publication)
Nicolas Constantinides, Argyris Constantinides, Dimitrios Koukopoulos, Christos Fidas, Marios Belk
2024 — conf
Developing an Anti -Phishing Large Language Model: A Focus Group Study on Human, Technological, and Legal Factors.
IISA
George A. Thomopoulos, Panagiota Kiortsi, Damianos Dumi Sigalas, Dimitris Kosmopoulos, Ioannis Igglezakis, Christos Fidas
2024 — ed.
Proceedings of the First International Workshop on Accessibility and Multimodal Interaction Design Approaches in Museums for People with Impairments co-located with MobileHCI 2023 Conference, Athens, Greece, September 26, 2023
AMID@MobileHCI
Christos Fidas, Stella Sylaiou, Tsvi Kuflik, Fotis Liarokapis, Panayiotis Koutsabasis, Manolis Wallace, Dimitrios Koukopoulos, Angeliki Antoniou, Katerina Mania, Ioanna Lykourentzou
2024 J jnl
Supporting People with Visual Impairments in Cultural Heritage: Survey and Future Research Directions.
Int. J. Hum. Comput. Interact.
Stella Sylaiou, Christos Fidas
2024 — conf
eXtended Reality Services for Outdoor Cultural Spaces: System Design and Evaluation Framework Using Unbiased Biometric Data.
IISA
Zois Koukopoulos, Dimitrios Koukopoulos, Christos Fidas
2023 J jnl
Comparison of extended reality platforms and tools for viewing and exhibiting art.
Digit. Appl. Archaeol. Cult. Heritage
Rebeka Vital, Stella Sylaiou, Dimitrios Koukopoulos, Konstantinos Koukoulis, Panagiotis Dafiotis, Christos Fidas
2023 — conf
Designing accessible cultural heritage experiences for individuals with hearing impairments.
AMID@MobileHCI
Evangelia Gkagka, Stella Sylaiou, Dimitrios Koukopoulos, Christos Fidas
2023 — conf
Exploring the Potential of Metaverse Apps for Real-World Applications: A Case Study with CALEND_AR.
INTERACT (4)
Konstantinos Tsomokos, Christos Sintoris, Christos Fidas, Nikolaos M. Avouris
2023 — conf
Extending User Interaction with Mixed Reality Through a Smartphone-Based Controller.
INTERACT (1)
Georgios Papadoulis, Christos Sintoris, Christos Fidas, Nikolaos M. Avouris
2023 — conf
Image-based Face Verification for Student Identity Management - the TRUSTID Case Study.
UMAP (Adjunct Publication)
José Nuno Faria, David Portugal, Pedro Martins, Marios Belk, Argyris Constantinides, Andreas Pitsillides, Christos Fidas
2023 — conf
Influences of Cognitive Styles on EEG-Based Activity: An Empirical Study on Visual Content Comprehension.
INTERACT (4)
Maria Trigka, Georgios Papadoulis, Elias Dritsas, Christos Fidas
2023 — conf
Investigating Applicability Heuristics of Answer Set Programming in Game Development: Use Cases and Empirical Study.
CHI Greece
Evangelos Lamprou, Christos Fidas
2023 — conf
Methodologies and Ethical Considerations in Phishing Research: A Comprehensive Review.
CHI Greece
George A. Thomopoulos, Dimitrios P. Lyras, Christos Fidas
2023 — conf
Mobile and Multimodal HCI Design Approaches in Museums for People with Impairments.
MobileHCI (Companion)
Christos Fidas, Stella Sylaiou, Tsvi Kuflik, Fotis Liarokapis, Panayiotis Koutsabasis, Manolis Wallace, Dimitrios Koukopoulos, Angeliki Antoniou, Katerina Mania, Ioanna Lykourentzou
2023 J jnl
Security and Usability of a Personalized User Authentication Paradigm: Insights from a Longitudinal Study with Three Healthcare Organizations.
ACM Trans. Comput. Heal.
Argyris Constantinides, Marios Belk, Christos Fidas, Roy Beumers, David Vidal, Wanting Huang, Juliana Bowles, Thais Webber, Agastya Silvina, Andreas Pitsillides
2023 — conf
TRUSTID: Intelligent and Continuous Online Student Identity Management in Higher Education.
UMAP (Adjunct Publication)
Argyris Constantinides, José N. Faria, Taoufik Sousak, Pedro Martins, David Portugal, Marios Belk, Andreas Pitsillides, Christos Fidas
2023 — conf
Use of XR technologies for fostering visitors' experience and inclusion at industrial museums.
CHI Greece
Stella Sylaiou, Evangelia Gkagka, Christos Fidas, Elia Vlachou, Giorgos Lampropoulos, Antonis Plytas, Vani Nomikou
2023 — conf
XR technologies fostering museum visits for people with impairments.
AMID@MobileHCI
Dimitrios Koukopoulos, Konstantinos Koukoulis, Stella Sylaiou, Christos Fidas
2022 — conf
A Survey on Signal Processing Methods for EEG-based Brain Computer Interface Systems.
PCI
Maria Trigka, Elias Dritsas, Christos Fidas
2022 — conf
APPS 2022: Fourth International Workshop on Adaptive and Personalized Privacy and Security.
UMAP (Adjunct Publication)
Argyris Constantinides, Marios Belk, Christos Fidas, Juliana Bowles, Andreas Pitsillides
2022 — conf
Evaluating the Design of an Art Student Framework Supporting XR Exhibitions: Evaluating an Art Student Framework.
PCI
Dimitrios Koukopoulos, Panagiotis Dafiotis, Stella Sylaiou, Konstantinos Koukoulis, Christos Fidas
2022 — conf
First results of a survey concerning the use of digital human avatars in museums and cultural heritage sites.
IMET
Stella Sylaiou, Christos Fidas
2022 — conf
Personalization services in art education environments: first survey results.
IISA
Dimitrios Koukopoulos, Panagiotis Dafiotis, Stella Sylaiou, Konstantinos Koukoulis, Angeliki Antoniou, Rebeka Vital, Christos Fidas
2022 — conf
XR technologies for self-regulated student exhibitions in art education: survey and first design considerations.
IMET
Dimitrios Koukopoulos, Panagiotis Dafiotis, Stella Sylaiou, Konstantinos Koukoulis, Christos Fidas
2021 — conf
A Comparative Study among Different Computer Vision Algorithms for Assisting Users in Picture Password Composition.
UMAP (Adjunct Publication)
Christodoulos Constantinides, Argyris Constantinides, Marios Belk, Christos Fidas, Andreas Pitsillides
2021 — conf
A Field Dependence-Independence Perspective on Eye Gaze Behavior within Affective Activities.
INTERACT (1)
Christos Fidas, Marios Belk, Christodoulos Constantinides, Argyris Constantinides, Andreas Pitsillides
2021 — conf
APPS 2021: Third International Workshop on Adaptive and Personalized Privacy and Security.
UMAP (Adjunct Publication)
Argyris Constantinides, Marios Belk, Christos Fidas, Juliana Bowles, Andreas Pitsillides
2021 — conf
An Empirical Study of Picture Password Composition on Smartwatches.
INTERACT (4)
Marios Belk, Christos Fidas, Eleni Katsi, Argyris Constantinides, Andreas Pitsillides
2021 — conf
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
Argyris Constantinides, Christodoulos Constantinides, Marios Belk, Christos Fidas, Andreas Pitsillides
2021 — conf
Eye Gaze and Interaction Differences of Holistic Versus Analytic Users in Image-Recognition Human Interaction Proof Schemes.
HCI (27)
Pantelitsa Leonidou, Argyris Constantinides, Marios Belk, Christos Fidas, Andreas Pitsillides
2021 J jnl
From hot-spots towards experience-spots: Leveraging on users' sociocultural experiences to enhance security in cued-recall graphical authentication.
Int. J. Hum. Comput. Stud.
Argyris Constantinides, Christos Fidas, Marios Belk, Anna Maria Pietron, Ting Han, Andreas Pitsillides
2021 — conf
Privacy-preserving Biometric-driven Data for Student Identity Management: Challenges and Approaches.
UMAP (Adjunct Publication)
Christos Fidas, Marios Belk, David Portugal, Andreas Pitsillides
2021 — conf
Tracing El Greco's Echoes of Antiquity: Audience Interaction with Online Art.
CHI Greece
Pericles Pericleous, Ianthi Assimakopoulou, Andri Ioannou, Christos Fidas, Nikolaos M. Avouris
2021 — conf
Understanding Insider Attacks in Personalized Picture Password Schemes.
INTERACT (4)
Argyris Constantinides, Marios Belk, Christos Fidas, Andreas Pitsillides
2020 A conf
A Cross-cultural Perspective for Personalizing Picture Passwords.
UMAP
Argyris Constantinides, Anna Maria Pietron, Marios Belk, Christos Fidas, Ting Han, Andreas Pitsillides
2020 A conf
APPS 2020: Second International Workshop on Adaptive and Personalized Privacy and Security.
UMAP
Marios Belk, Christos Fidas, Juliana Bowles, Elias Athanasopoulos, Andreas Pitsillides
2020 — conf
Adaptive and Personalized Privacy and Security (APPS 2020): Workshop Chairs' Welcome.
UMAP (Adjunct Publication)
Marios Belk, Christos Fidas, Juliana Bowles, Elias Athanasopoulos, Andreas Pitsillides
2020 A conf
An eye gaze-driven metric for estimating the strength of graphical passwords based on image hotspots.
IUI
Argyris Constantinides, Marios Belk, Christos Fidas, Andreas Pitsillides
2020 — conf
CogniKit: An Extensible Tool for Human Cognitive Modeling based on Eye Gaze Analysis.
IUI Companion
Andreas Costi, Marios Belk, Christos Fidas, Argyris Constantinides, Andreas Pitsillides
2020 — conf
Design and Development of a Patient-centric User Authentication System.
UMAP (Adjunct Publication)
Argyris Constantinides, Marios Belk, Christos Fidas, Andreas Pitsillides
2020 — conf
On the Effectiveness of Low-Cost Face Recognition with Deep Learning.
PCI
Theodoros Georgakopoulos, Maria Koutroumani, Theodoros Moulias, Christos Fidas
2020 — conf
On the Extension of the Haar Cascade Algorithm for Face Recognition: Case Study and Results.
PCI
Evangelos Michos, Stamatios Gkoumas, Ioanna Siakampeti, Christos Fidas
2019 B conf
"I Recall this Picture": Understanding Picture Password Selections based on Users' Sociocultural Experiences.
WI
Argyris Constantinides, Christos Fidas, Marios Belk, Andreas Pitsillides
2019 J jnl
A Human-Cognitive Perspective of Users' Password Choices in Recognition-Based Graphical Authentication.
Int. J. Hum. Comput. Interact.
Christina P. Katsini, Christos Fidas, Marios Belk, George Samaras, Nikolaos M. Avouris
2019 J jnl
A cognition-centered personalization framework for cultural-heritage content.
User Model. User Adapt. Interact.
George E. Raptis, Christos Fidas, Christina P. Katsini, Nikolaos M. Avouris
2019 — conf
Adaptive and Personalized Privacy and Security (APPS 2019): Workshop Chairs' Welcome and Organization.
UMAP (Adjunct Publication)
Marios Belk, Christos Fidas, Elias Athanasopoulos, Andreas Pitsillides
2019 J jnl
CogniPGA: Longitudinal Evaluation of Picture Gesture Authentication with Cognition-Based Intervention.
i-com
Christina P. Katsini, Nikolaos M. Avouris, Christos Fidas
2019 J jnl
Do Game Designers' Decisions Related to Visual Activities Affect Knowledge Acquisition in Cultural Heritage Games? An Evaluation From a Human Cognitive Processing Perspective.
ACM Journal on Computing and Cultural Heritage
George E. Raptis, Christos Fidas, Nikolaos M. Avouris
2019 B conf
Eye Tracking based Cognitive-Centered User Models.
WI
Christos Fidas
2019 — conf
FlexPass: Symbiosis of Seamless User Authentication Schemes in IoT.
CHI Extended Abstracts
Marios Belk, Christos Fidas, Andreas Pitsillides
2019 — conf
Influences of Mixed Reality and Human Cognition on Picture Passwords: An Eye Tracking Study.
INTERACT (2)
Christos Fidas, Marios Belk, Georgios M. Hadjidemetriou, Andreas Pitsillides
2019 A conf
On the Accuracy of Eye Gaze-driven Classifiers for Predicting Image Content Familiarity in Graphical Passwords.
UMAP
Argyris Constantinides, Marios Belk, Christos Fidas, Andreas Pitsillides
2019 — conf
On the Personalization of Image Content in Graphical Passwords based on Users' Sociocultural Experiences: New Challenges and Opportunities.
UMAP (Adjunct Publication)
Argyris Constantinides, Christos Fidas, Marios Belk, Andreas Pitsillides
2019 — conf
Picture Passwords in Mixed Reality: Implementation and Evaluation.
CHI Extended Abstracts
Georgios M. Hadjidemetriou, Marios Belk, Christos Fidas, Andreas Pitsillides
2019 — conf
The SERUMS tool-chain: Ensuring Security and Privacy of Medical Data in Smart Patient-Centric Healthcare Systems.
IEEE BigData
Vladimir Janjic, Michael Vinov, Thomas Given-Wilson, Axel Legay, Euan Blackledge, R. Arredouani, George Stylianou, Wanting Huang, Juliana Küster Filipe Bowles, Andreas Francois Vermeulen, Agastya Silvina, Marios Belk, Christos Fidas, Andreas Pitsillides, M. Kumar, Michael Rossbory
2018 B conf
Does image grid visualization affect password strength and creation time in graphical authentication?
AVI
Christina P. Katsini, George E. Raptis, Christos Fidas, Nikolaos M. Avouris
2018 J jnl
Effects of mixed-reality on players' behaviour and immersion in a cultural tourism game: A cognitive processing perspective.
Int. J. Hum. Comput. Stud.
George E. Raptis, Christos Fidas, Nikolaos M. Avouris
2018 A conf
Eye Gaze-driven Prediction of Cognitive Differences during Graphical Password Composition.
IUI
Christina P. Katsini, Christos Fidas, George E. Raptis, Marios Belk, George Samaras, Nikolaos M. Avouris
2018 A* conf
Influences of Human Cognition and Visual Behavior on Password Strength during Picture Password Composition.
CHI
Christina P. Katsini, Christos Fidas, George E. Raptis, Marios Belk, George Samaras, Nikolaos M. Avouris
2018 A conf
On Cultural-centered Graphical Passwords: Leveraging on Users' Cultural Experiences for Improving Password Memorability.
UMAP
Argyris Constantinides, Marios Belk, Christos Fidas, George Samaras
2018 — conf
On sociocultural-centered graphical passwords: an initial framework.
MobileHCI Adjunct
Argyris Constantinides, Christos Fidas, Marios Belk, George Samaras
2018 B conf
Towards gaze-based quantification of the security of graphical authentication schemes.
ETRA
Christina P. Katsini, George E. Raptis, Christos Fidas, Nikolaos M. Avouris
2018 — conf
Visualization of Cultural-Heritage Content based on Individual Cognitive Differences.
AVI*CH
George E. Raptis, Christina P. Katsini, Christos Fidas, Nikolaos M. Avouris
2017 J jnl
Adaptive user support in educational environments: A Bayesian Network approach.
CoRR
Adrian G. Stoica, Nikolaos K. Tselios, Christos Fidas
2017 — conf
Cultural Heritage Gaming: Effects of Human Cognitive Styles on Players' Performance and Visual Behavior.
UMAP (Adjunct Publication)
George E. Raptis, Christos Fidas, Nikolaos M. Avouris
2017 — conf
Effects of Human Cognitive Differences on Interaction and Visual Behavior in Graphical User Authentication.
INTERACT (3)
Marios Belk, Christos Fidas, Christina P. Katsini, Nikolaos M. Avouris, George Samaras
2017 — conf
Effects of Image-Based Rendering and Reconstruction on Game Developers Efficiency, Game Performance, and Gaming Experience.
INTERACT (2)
George E. Raptis, Christina P. Katsini, Christos Fidas, Nikolaos M. Avouris
2017 — conf
Influences of Users' Cognitive Strategies on Graphical Password Composition.
CHI Extended Abstracts
Christina P. Katsini, Christos Fidas, Marios Belk, Nikolaos M. Avouris, George Samaras
2017 B conf
Sweet-spotting security and usability for intelligent graphical authentication mechanisms.
WI
Marios Belk, Andreas Pamboris, Christos Fidas, Christina P. Katsini, Nikolaos M. Avouris, George Samaras
2017 J jnl
The interplay between humans, technology and user authentication: A cognitive processing perspective.
Comput. Hum. Behav.
Marios Belk, Christos Fidas, Panagiotis Germanakos, George Samaras
2017 A conf
Using Eye Gaze Data and Visual Activities to Infer Human Cognitive Styles: Method and Feasibility Studies.
UMAP
George E. Raptis, Christina P. Katsini, Marios Belk, Christos Fidas, George Samaras, Nikolaos M. Avouris
2016 — conf
A qualitative analysis of the effect of wholistic-analytic cognitive style dimension on the cultural heritage game playing.
IISA
George E. Raptis, Christos Fidas, Nikolaos M. Avouris
2016 — conf
Security and Usability in Knowledge-based User Authentication: A Review.
PCI
Christina P. Katsini, Marios Belk, Christos Fidas, Nikolaos M. Avouris, George Samaras
2015 J jnl
A Personalized User Authentication Approach Based on Individual Differences in Information Processing.
Interact. Comput.
Marios Belk, Christos Fidas, Panagiotis Germanakos, George Samaras
2015 — conf
A survey on tools for end user authoring of mobile applications for cultural heritage.
IISA
Christos Fidas, Christos Sintoris, Nikoleta Yiannoutsou, Nikolaos M. Avouris
2015 J jnl
Do human cognitive differences in information processing affect preference and performance of CAPTCHA?
Int. J. Hum. Comput. Stud.
Marios Belk, Christos Fidas, Panagiotis Germanakos, George Samaras
2015 — conf
Social Electricity: The evolution of a Large-Scale, Green ICT Social Application through two Case Studies in Cyprus and Singapore.
EnviroInfo/ICT4S (1)
Andreas Kamilaris, Andreas Pitsillides, Christos Fidas, Sekhar Kondepudi
2015 — conf
iHIP: Towards a User Centric Individual Human Interaction Proof Framework.
CHI Extended Abstracts
Christos Fidas, Heinrich Hussmann, Marios Belk, George Samaras
2014 A conf
A Personalization Method Based on Human Factors for Improving Usability of User Authentication Tasks.
UMAP
Marios Belk, Panagiotis Germanakos, Christos Fidas, George Samaras
2014 — conf
Deployment, Usage and Impact of Social Media Tools in Small and Medium Enterprises: A Case Study.
HCI (22)
Eleftherios Papachristos, Christos Katsanos, Nikolaos Karousos, Ioannis Ioannidis, Christos Fidas, Nikolaos M. Avouris
2014 — conf
On Supporting Security and Privacy-Preserving Interaction through Adaptive Usable Security.
HCI (24)
Marios Belk, Christos Fidas, Panagiotis Germanakos, George Samaras
2014 — conf
SONETA: A Social Media Geo-Trends Analysis Tool.
HCI (22)
Ioannis Ioannidis, Eleftherios Papachristos, Christos Katsanos, Nikolaos Karousos, Christos Fidas, Nikolaos M. Avouris
2013 — conf
An empirical study on efficiency and effectiveness of localized vs. Latin-based CAPTCHA challenges.
Panhellenic Conference on Informatics
Christos Fidas, Artemios G. Voyiatzis
2013 — conf
On Users' Preference on Localized vs. Latin-Based CAPTCHA Challenges.
INTERACT (4)
Christos Fidas, Artemios G. Voyiatzis
2013 — conf
Security for Diversity: Studying the Effects of Verbal and Imagery Processes on User Authentication Mechanisms.
INTERACT (3)
Marios Belk, Christos Fidas, Panagiotis Germanakos, George Samaras
2013 — conf
Studying the Effect of Human Cognition on Text and Image Recognition CAPTCHA Mechanisms.
HCI (27)
Marios Belk, Panagiotis Germanakos, Christos Fidas, George Spanoudis, George Samaras
2013 A conf
Studying the Effect of Human Cognition on User Authentication Tasks.
UMAP
Marios Belk, Panagiotis Germanakos, Christos Fidas, George Samaras
2013 J jnl
Towards a Domain-Specific Context Acquisition, Presentation and Rule-Based Control Platform.
Int. J. Pervasive Comput. Commun.
Vassilis Kapsalis, Christos Fidas, Loukas Hadellis
2013 — conf
Towards the Personalization of CAPTCHA Mechanisms Based on Individual Differences in Cognitive Processing.
SouthCHI
Marios Belk, Panagiotis Germanakos, Christos Fidas, Andreas Holzinger, George Samaras
2012 — conf
Do cognitive styles of users affect preference and performance related to CAPTCHA challenges?
CHI Extended Abstracts
Marios Belk, Christos Fidas, Panagiotis Germanakos, George Samaras
2012 B conf
Toward a Two-Handed Gesture-Based Visual 3D Interactive Object-Oriented Environment for Software Development.
Intelligent Environments
Raúl A. Herrera Acuña, Christos Fidas, Vasileios Argyriou, Sergio A. Velastin
2011 — conf
An Empirical Study on the Web Password Strength in Greece.
Panhellenic Conference on Informatics
Artemios G. Voyiatzis, Christos Fidas, Dimitrios N. Serpanos, Nikolaos M. Avouris
2011 A* conf
On the necessity of user-friendly CAPTCHA.
CHI
Christos Fidas, Artemios G. Voyiatzis, Nikolaos M. Avouris
2011 J jnl
Towards a Context Aware Service for Performing Semi-Moderated Remote Usability Studies of Web Sites.
e Minds Int. J. Hum. Comput. Interact.
Christos Fidas
2010 — conf
A networking platform for real-time monitoring and rule-based control of transport fleets and transferred goods.
ITSC
Vassilis Kapsalis, Christos Fidas, Loukas Hadellis, Christos Karavasilis, Manolis Galetakis, Christos Katsenos
2010 — conf
When Security Meets Usability: A User-Centric Approach on a Crossroads Priority Problem.
Panhellenic Conference on Informatics
Christos Fidas, Artemios G. Voyiatzis, Nikolaos M. Avouris
2009 Misc conf
Providing Assistance during Decision-making Problems Solving in an Educational Modelling Environment.
AIAI
Panagiotis Politis, Ioannis Partsakoulakis, George A. Vouros, Christos Fidas
2008 J jnl
Intelligent - Miner: The Conceptual and Architectural Design of a Web Based Data Mining Service.
e Minds Int. J. Hum. Comput. Interact.
Christos Fidas, Manolis Maragoudakis, Nikolaos M. Avouris
2006 — conf
An Environment for Constructing and Exploring Visual Models of Logic Propositions by Young Students.
SETN
Christos Fidas, Panagiotis Politis, Vassilis Komis, Nikolaos M. Avouris
2006 Misc conf
On supporting young students in visual logic modeling.
AIAI
Christos Fidas, Nikolaos M. Avouris, Vassilis Komis, Panagiotis Politis
2005 J jnl
Heterogeneity of learning material in synchronous computer-supported collaborative modelling.
Comput. Educ.
Christos Fidas, Vassilis Komis, Spyros Tzanavaris, Nikolaos M. Avouris
2004 — —
Σχεδιασμός και ανάπτυξη ανοιχτών συστημάτων σύγχρονης συνεργατικής μάθησης
Christos Fidas
2003 — conf
A Study on Heterogeneity During Realtime Collaborative Problem Solving.
CSCL
Vassilis Komis, Nikolaos M. Avouris, Christos Fidas
2002 — conf
Collaborative problem solving using an open modeling environment.
CSCL
Christos Fidas, Vassilis Komis, Nikolaos M. Avouris, Angelique Dimitracopoulou
2002 J jnl
Computer-Supported Collaborative Concept Mapping: Study of Synchronous Peer Interaction.
Educ. Inf. Technol.
Vassilis Komis, Nikolaos M. Avouris, Christos Fidas
2002 — conf
OCAF: an object-oriented model of analysis of collaborative problem solving.
CSCL
Nikolaos M. Avouris, Angelique Dimitracopoulou, Vassilis Komis, Christos Fidas
2001 — conf
Website Evaluation: A Usability-Based Perspective.
Panhellenic Conference on Informatics
Nikolaos M. Avouris, Nikolaos K. Tselios, Christos Fidas, Eleftherios Papachristos