Eye-tracking tools estimate the locations in a scene where a user is fixating on. They are used in various domains including human-computer interaction (HCI) and learning transfer. As an example, gaze-based text entry allows interacting with computing systems remotely without touching the interface. They are also used to comprehend the visual behaviors of a pilot searching for information in a cockpit. However, a number of barriers still exists and makes these devices less accurate and difficult to use in daily activities. One of these problems is the shift between the actual and the estimated position of the user’s point-of-regard, which systematically comes from the eye...

Task-induced mental workload of pilot students was assessed at the beginning of their training on a laboratory task. Their two year flight training outcome was associated with characteristic pupil size variations, discriminating the most and less proficient students. Results could be interpreted in line with the neural efficiency hypothesis.

Il est établi qu'un modèle visuel accompagnant un exemple sonore renforce la sensation de l'auditoire, et que la façon dont un piano est accordé influence la restitution d'une oeuvre. Nous avons inventé des outils spécifiques dédiés aux tempéraments. Nous présentons ici une extension à différents modèles 2D, 3D et 4D, déjà évoqués lors de précédents congrès [7], optimisés afin d'amplifier la sensation auditive. La démonstration lors des journées d'informatique musicale se fera à l'aide de films d'animation. Afin d'étudier chaque tempérament de façon dynamique, ou de le comparer au tempérament égal, nous avons choisi d'utiliser la même séquence musicale sous forme de...

La propagation sur de grandes distances des ondeś electromagnétiques est un sujet important pour de nombreux systèmes et applications, tels que le radar ou la communication. La méthode split-step wavelet (SSW) permet de calculer rapidement cette propagation. Dans cette méthode celle-ci est séparée en deuxétapes. Une première consiste en la propagation en espace libre dans le domaine des ondelettes. Ensuite, les effets de l'atmosphère et du relief sont pris en compte dans le domaine spatial. Cette article propose une méthode 2D de SSW basée sur une bibliothèque de propagateurs pour la propagation en espace libre. Cette méthode a l'avantage d'être efficace en taille mémoire...

Les obstacles de grandes dimensions (bâtiments, champs de panneaux solaires, ...) peuvent dégrader les performances des radars primaires et secondaires d'approche de l'aviation civile. Dans cet article, une approche pour modéliser l'ensemble de ces perturbations est présentée.

We present a new Constraint Programming (CP) model to optimize the transition cost of Fixed Job Scheduling (FJS), which improves our previous approach based on per-resource constraints by orders of magnitude. Our new model relies on a much tighter relaxation which encompasses all resources to directly propagate on the global cost, thanks to the MinWeightAllDiff optimization constraint. We also present several strategies which exploit the optimal matching computed by the MinWeightAllDiff constraint to efficiently guide the search. The resulting CP solver, using parallel cooperation between the strategies, consistently outperforms a state-of-the-art MIP solver on real...

The COVID-19 pandemic has had a significant impact on the air transportation system worldwide. This paper aims at analyzing the effect of the travel restriction measures implemented during the COVID-19 pandemic from a passenger perspective on the US air transportation system. Four metrics based on data generated by passengers and airlines on social media are proposed to measure how the travel restriction measures impacted the relation between passengers and airlines in close to real-time. The proposed metrics indicate that each airline has reacted differently to the COVID-19 travel restriction measures from a passenger perspective, therefore they can be used by airlines...

A wideband 4-port vector antenna previously re-ported for radio-goniometry applications using four ports is investigated here for MIMO applications. Thank to the polarization diversity capabilities inherent to vector antennas, the MIMO performances are very good for wideband frequency operation.The main metrics that are generally used for MIMO antennas are reported. These characteristics enable the 3D-half-space angular coverage

The requirement for ARAIM continuity risk due to the monitor false alarm has been outlined in earlier works for ARAIM development (WG-C in ARAIM technical subgroup milestone 3 report, 2016). However, the expected continuity risk comes from an underlying conservative assumption that the correlation between multiple monitors for fault detection is negligible. Thus, we investigate the effect of the cross-correlation across ARAIM solution separation tests on the monitor false alarm probability (PFA) by presenting a higher fidelity methodology to evaluate the PFA based on highly correlated fault detection tests. We carry out a preliminary assessment of ARAIM false alarm...