Measuring brain activity with electroencephalography (EEG) is mature enough
to assess mental states. Combined with existing methods, such tool can be used
to strengthen the understanding of user experience. We contribute a set of
methods to estimate continuously the user's mental workload, attention and
recognition of interaction errors during different interaction tasks. We
validate these measures on a controlled virtual environment and show how they
can be used to compare different interaction techniques or devices, by
comparing here a keyboard and a touch-based interface. Thanks to such a
framework, EEG becomes a promising method to improve the overall usability of
complex computer systems.Comment: in ACM. CHI '16 - SIGCHI Conference on Human Factors in Computing
System, May 2016, San Jose, United State
Nous nous intéressons à la sélection d'une ligne de coupe dans un modèle 3D. Nous nous situons donc dans le paradigme des interfaces utilisateurs 3D (3DUI). Dans ce contexte, il est intéressant pour adresser un problème général d'expérimenter sur des applications métiers complexes porteuses de contraintes et d'exigences, ici les géosciences. Dans le cadre de l'interface proposée, table interactive et interface tangible, nous étudions les différentes métaphores d'interaction possibles et déterminons le meilleur interacteur pour la tâche ciblée.
Data physicalizations are growing popular in many societal domains which indicates a strong potential for fostering public engagement thanks to public exhibition (e.g. in train stations, in airports, on roundabouts, and in enterprises). We focus on dynamic physical charts for visualizing renewable energy forecasts in public spaces. To get charts readable from any point of view around, we propose a physical ring chart inspired by stone cairns. To build this physical chart, we designed an expandable and stackable illuminated ring. In this paper, we describe the design process and the limitations of the first prototype of such a ring.
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