Selected Publications
        Journals (Selected Publications)
        
            - ACM HEALTH
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            - Constantinides, A., Belk, M., Fidas, C., Beumers, R., Vidal, D., Huang, W., Bowles, J., Webber, T., Silvina, A., Pitsillides, A. (2023). Security and usability of a personalized user authentication paradigm: Insights from a longitudinal study with three healthcare organizations, ACM Transactions on Computing for Healthcare, 4(1): 2:1-2:40, ACM Press [https://doi.org/10.1145/3564610]
            
 
            - Springer SLE
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            - Portugal, D., Faria, J., Belk, M., Martins, P., Constantinides, A., Pietron, A., Pitsillides, A., Avouris, N., Fidas, C. (2023).
                Continuous user identification in distance learning: a recent technology perspective, 
                Smart Learning Environments - Impact Factor: 4.8,
                 10, 38, Springer [https://doi.org/10.1186/s40561-023-00255-9]
            
 
            - Elsevier IJHCS
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            - Constantinides, A., Fidas, C., Belk, M., Pietron, A., Han, T., Pitsillides, A. (2021). 
                From hot-spots towards experience-spots: Leveraging on users' sociocultural experiences to enhance security in cued-recall graphical authentication, 
                International Journal of Human-Computer Studies - Impact Factor: 5.4, 149, Elsevier [https://doi.org/10.1016/j.ijhcs.2021.102602]
            
 
            - T&F IJHCI
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            - Katsini, C., Fidas, C., Belk, M., Samaras, G., Avouris, N. (2019). A human-cognitive perspective of users' password choices in recognition-based graphical authentication, International Journal of Human-Computer Interaction - Impact Factor: 4.7, 35, 19, 1800-1812, Taylor & Francis [https://doi.org/10.1080/10447318.2019.1574057]
            
 
            - Elsevier CHB
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            - 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 - Impact Factor: 9.9, 76, 184-200, Elsevier [https://doi.org/10.1016/j.chb.2017.06.042]
 
            - Elsevier IJHCS
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            - 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 - Impact Factor: 5.4, 84, 1-18, Elsevier [http://dx.doi.org/10.1016/j.ijhcs.2015.07.002]
 
            - Oxford IwC
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            - Belk M., Fidas C., Germanakos P., & Samaras G. (2015) A personalized user authentication approach based on individual differences in information processing, Interacting with Computers Impact Factor: 1.3, 27(6), Oxford University Press [http://dx.doi.org/10.1016/j.ijhcs.2015.07.002]
 
            - Elsevier JSS
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            - Belk, M., Papatheocharous, E., Germanakos, P., Samaras, G. (2013). Modeling users on the world wide web based on cognitive factors, navigation behavior and clustering techniques. Journal of Systems and Software, Special Issue on Web 2.0 Engineering: New Practices and Emerging Challenges Impact Factor: 3.5, 86(12), 2995-3012, Elsevier [http://dx.doi.org/10.1016/j.jss.2013.04.029]
 
        
        Conferences (Selected publications)
        
            - ACM UMAP 2023
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            - Constantinides, A., Faria, J., Sousak, T., Martins, P., Portugal, D., Belk, M., Pitsillides, A., Fidas, C. (2023). 
                TRUSTID: Intelligent and continuous online student identity management in higher education, 
                ACM User Modeling, Adaptation and Personalization (UMAP 2023 Adjunct), ACM Press, 110-114
                [https://doi.org/10.1145/3563359.3597410]
            
 
            - IOS ICIMTH 2022
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            - Webber, T., Bowles, J., Constantinides, A., Belk, M., Morley, E. (2022). 
                Evaluating a smart healthcare system design through participatory approach, 
                Advances in Informatics, Management and Technology in Healthcare (ICIMTH 2022), 312-315
                [https://doi.org/10.3233/SHTI220725]
            
 
            - ACM WI 2021
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            - Constantinides, A., Constantinides, C., Belk, M., Fidas, C., Pitsillides, A. (2021). 
                Applying Benford's Law as an efficient and low-cost solution for verifying the authenticity of students' video streams in learning management systems, 
                IEEE/WIC/ACM International Conference on Web Intelligence and Intelligent Agent Technology (WI-IAT 2021), IEEE/WIC/ACM, 563-569
                [https://doi.org/10.1145/3486622.3493993]
            
 
            - IFIP INTERACT 2021
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            - Belk, M., Fidas, C., Katsi, E., Constantinides, A., Pitsillides, A. (2021). 
                An empirical study of picture password composition on smartwatches, 
                IFIP TC13 Human-Computer Interaction (INTERACT 2021), Springer-Verlag, 655-664
                [https://doi.org/10.1007/978-3-030-85610-6_37]
            
 
            - IFIP INTERACT 2021
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            - Fidas, C., Belk, M., Constantinides, C., Constantinides, A., Pitsillides, A. (2021). 
                A field dependence-independence perspective on eye gaze behavior within affective activities, 
                IFIP TC13 Human-Computer Interaction (INTERACT 2021), Springer-Verlag, 63-72
                [https://doi.org/10.1007/978-3-030-85623-6_6]
            
 
            
            - IFIP INTERACT 2021
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            - Constantinides, A., Belk, M., Fidas, C., Pitsillides, A. (2021). 
                Understanding insider attacks in personalized picture password schemes, 
                IFIP TC13 Human-Computer Interaction (INTERACT 2021), Springer-Verlag, 722-731
                [https://doi.org/10.1007/978-3-030-85610-6_42]
            
 
            - ACM UMAP 2021
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            - Fidas, C., Belk, M., Portugal, D., Pitsillides, A. (2021). 
                Privacy-preserving biometric-driven data for student identity management: Challenges and approaches, 
                ACM User Modeling, Adaptation and Personalization (UMAP 2021 Adjunct), ACM Press, 368-370
                [https://doi.org/10.1145/3450614.3464470]
            
 
            
            - ACM UMAP 2020
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            - Constantinides, A., Pietron, A., Belk, M., Fidas, C., Han, T., Pitsillides, A. (2020). A cross-cultural perspective for personalizing picture passwords, ACM SIGCHI User Modeling, Adaptation and Personalization (UMAP 2020), 43-52, ACM Press [https://doi.org/10.1145/3340631.3394859]
            
 
            - ACM IUI 2020
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            - Constantinides, A., Belk, M., Fidas, C., Pitsillides, A. (2020). An eye gaze-driven metric for estimating the strength of graphical passwords based on image hotspots. ACM SIGCHI Intelligent User Interfaces (IUI 2020), ACM Press, 33-37 [https://doi.org/10.1145/3377325.3377537] 
            
 
            - ACM CHI 2019
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            - Belk, M., Fidas, C., Pitsillides, A. (2019). FlexPass: Symbiosis of seamless user authentication schemes in IoT, ACM SIGCHI Human Factors in Computing Systems (CHI 2019), ACM Press, LBW2318, 1–6 [https://doi.org/10.1145/3290607.3312951]
            
 
            - ACM UMAP 2019
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            - Constantinides, A., Belk, M., Fidas, C., Pitsillides, A. (2019). On the accuracy of eye gaze-driven classifiers for predicting image content familiarity in graphical passwords. ACM SIGCHI User Modeling, Adaptation and Personalization (UMAP 2019), ACM Press, 245-249
            
 
            - ACM MobileHCI 2018
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            - Constantinides, A., Fidas, C., Belk, M., Samaras, G. (2018). On sociocultural-centered graphical passwords: An initial framework. ACM SIGCHI Human-Computer Interaction with Mobile Devices and Services (MobileHCI 2018), ACM Press, 277-284 [https://doi.org/10.1145/3236112.3236150] 
            
 
            - ACM UMAP 2018
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            - Constantinides, A., Belk, M., Fidas, C., Samaras, G. (2018). On cultural-centered graphical passwords: Leveraging on users' cultural experiences for improving password memorability. ACM SIGCHI User Modeling, Adaptation and Personalization (UMAP 2018), ACM Press, 245-249 [https://doi.org/10.1145/3209219.3209254] 
            
 
            - ACM CHI 2018
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            - 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, paper 87 [https://doi.org/10.1145/3173574.3173661] 
            
 
            - ACM IUI 2018
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            - 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 WI 2017
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            - Belk, M., Pamboris, A., Fidas, C., Katsini, C., Avouris, N., Samaras, G. (2017). Sweet-spotting security and usability for intelligent graphical authentication mechanisms, ACM Web Intelligence (WI 2017), ACM Press, 252-259 [https://doi.org/10.1145/3106426.3106488] 
            
 
            - ACM UMAP 2017
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            - 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 User Modeling, Adaptation and Personalization (UMAP 2017), ACM Press, 164-173 [https://doi.org/10.1145/3079628.3079690] 
            
 
            - ACM CHI 2017
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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 [https://doi.org/10.1145/3027063.3053217] 
            
 
        
     
 
        
        Last Update: 29 April 2024