Prof. Luis A. Leiva

Luis A. Leiva
Assistant Professor and Senior research scientist
University of Luxembourg, Dept. Computer Science

Temporal Saliency

Abstract: Temporal salience considers how visual attention varies over time. Although visual salience has been widely studied from a spatial perspective, its temporal dimension has been mostly ignored, despite arguably being of utmost importance to understand the temporal evolution of attention on dynamic contents, which is key to developing pervasive eye-tracking applications. This talk introduces GLIMPSE, a measure to compute temporal salience based on the observer-spatio-temporal consistency of raw eye-tracking data. The measure is conceptually simple, training free, and provides a semantically meaningful quantification of visual attention over time. GLIMPSE can serve as the basis for several downstream tasks such as, for example, segmentation and summarization of videos.

About the speaker: Luis A. Leiva is a professor of Computer Science at the University of Luxembourg, where he leads the Computational Interaction research group. Since 2023 he is also the director of the Interdisciplinary Lab for Intelligent and Adaptive Systems (ILIAS) at the same institution. He holds two undergraduate degrees (Industrial Design and Industrial Engineering), an MSc in Electrical Engineering, an MAS in Pattern Recognition and Artificial Intelligence, and a PhD in Computer Science. He is the co-founder and former CTO of Sciling, an SME agency specialized in B2B Machine Learning solutions. His research interests lie at the intersection of Human-Computer Interaction and Machine Learning. His main research area is computational interaction, where he combines computational thinking with data-driven models and methods to enable, explain, and support user interaction.