Ioannis Giannopoulos

schoolVienna University of Technologybar_chart#7644 Global Rank

Total Papers

HCI Rank

#7644

Research Areas

Years Active

Recent Publications

BeeAR: Augmented Reality Beeline Navigation for Spatial Knowledge Acquisition

Navigation assistance systems have become integral to our daily routines, helping us to find our way through unfamiliar environments. However, their use may come at a price, as empirical evidence suggests a potentially harmful impact of these systems on our spatial abilities, including the acquisition of spatial knowl…

CHI '18CorrespondingEye Tracking & Gaze Interaction

The Index of Pupillary Activity: Measuring Cognitive Load vis-à-vis Task Difficulty with Pupil Oscillation

A novel eye-tracked measure of the frequency of pupil diameter oscillation is proposed for capturing what is thought to be an indicator of cognitive load. The proposed metric, termed the Index of Pupillary Activity, is shown to discriminate task difficulty vis-a-vis cognitive load (if the implied causality can be ass…

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