Influence of Reading Speed on Pupil Size as a Measure of Perceived Relevance.
Oswald Barral, Ilkka Kosunen, Giulio Jacucci · 2014
Abstract. Depending on the task or the environment, we read texts at different speeds. Recently, a substantial amount of literature has risen in the field of predicting relevance of text documents through eye-derived metrics to improve personalization of information retrieval systems. Nev-ertheless, no academic work has yet addressed the possibility of such mea-sures behaving differently when reading at different speeds. This study focuses on pupil size as a measure of perceived relevance, and analyses its dependence on reading speed. Our results are followed by a discus-sion around the need of taking into account reading speed when using eye-derived measures for implicit relevance feedback.