4.5 Article

Predicting webpage aesthetics with heatmap entropy

Journal

BEHAVIOUR & INFORMATION TECHNOLOGY
Volume 40, Issue 7, Pages 676-690

Publisher

TAYLOR & FRANCIS LTD
DOI: 10.1080/0144929X.2020.1717626

Keywords

Entropy; visual attention; eye tracking; aesthetics; web page

Funding

  1. National Natural Science Foundation of China [71802132]

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This study introduces a descriptive global index for eye-tracking data called heatmap entropy, or visual attention entropy (VAE), and explores its predictive value for webpage aesthetics. The results show a negative correlation between VAE and aesthetic ratings, with a more significant correlation found with the calibrated form, rVAE. Both VAE and rVAE show improving performances after the first second, suggesting potential for further improvements with longer tracking durations or more observers.
This paper introduces a descriptive global index for eye-tracking data called heatmap entropy, or visual attention entropy (VAE), and discerns its predictive value for webpage aesthetics. VAE represents the chaos, or uncertainty, in the allocation of visual attention. In the experiment, we tracked and recorded 30 observers' initial landings on 40 web pages displayed for 3 seconds each. The results show that the VAE and aesthetic ratings of the web pages are negatively correlated. A calibrated form of VAE, known as relative VAE (rVAE), has a more significant correlation with the aesthetic ratings. On its own, the rVAE can differentiate between good- and bad-looking pages to a certain degree of accuracy (two-class ANOVA with ). Further investigation reveals that the performances of both VAE and rVAE improve steadily after the first second, and could be better, if the tracking duration was longer than 3 seconds or if more observers were recruited.

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