Browsing by Subject "Cognitive Processing Abilities"

Now showing items 1-3 of 3

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 ...