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Browsing by Subject "Cognitive Processing Abilities"

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    • Article  

      A personalization method based on human factors for improving usability of user authentication tasks 

      Belk, Marios; Germanakos, Panagiotis; Fidas, Christos A.; Samaras, George S. (2014)
      Aiming to ensure safety of operation to application providers and improve the usability of human computer interactions during authentication, this paper proposes a two-step personalization approach of user authentication ...

    • Article  

      Studying the effect of human cognition on text and image recognition CAPTCHA mechanisms 

      Belk, Marios; Germanakos, Panagiotis; Fidas, Christos A.; Spanoudis, George; Samaras, George S. (2013)
      This paper investigates the effect of individual differences in human cognition on user performance in CAPTCHA tasks. In particular, a three-month ecological valid user study was conducted with a total of 107 participants ...

    • Article  

      Towards the personalization of CAPTCHA mechanisms based on individual differences in cognitive processing 

      Belk, Marios; Germanakos, Panagiotis; Fidas, Christos A.; Holzinger, A.; Samaras, George S. (2013)
      This paper studies the effect of individual differences on user performance related to text-recognition CAPTCHA challenges. In particular, a text-recognition CAPTCHA mechanism was deployed in a three-month user study to ...

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