Archives Ouvertes HAL

Toutes les publications de l'ENAC en direct.
All ENAC publications.

[hal-02134704] Transduction as a paradigm for a re- integration of human technology into culture

Publications ENAC - Mercredi, 22 mai 2019 - 11:00:35
This position paper presents the search for a philosophical approach to Human-Computer Interaction based on the hypothesis of a strong genetic relationship between humans and interactive systems, taking into account the origin of technology, and based on an account of interaction and design through the concept of transduction.

[hal-02126444] Improving Detection Performance of Ionospheric Disturbances due to Earthquake by Optimization of Sequential Measurement Combination

Publications ENAC - Mardi, 21 mai 2019 - 12:38:53
Energy generated from earthquake (EQ) is transferred to the ionosphere and results in co - sei s mic ionospheric disturbances ( CI D). C ID can be observed in the ionospheric combination using L1, L2 frequency carrier phase. As ionospheric trend due to normal conditions such as elevatio n angle of satellites is generally larger than disturbances, a proper measure is required to extract disturba n ce s ignals . Derivative , or sequential combination, is a simple and effective way to remove the normal trend in the ionospheric delay. W hen using derivative, however, disturbance s ignals can often be obscured by no ise due to its small amplitude. In order to reduce the noise...

[hal-02120128] Multi-label Classification for the Generation of Sub-problems in Time-constrained Combinatorial Optimization

Publications ENAC - Lundi, 20 mai 2019 - 18:40:38
This paper addresses the resolution of combinatorial optimization problems presenting some kind of recurrent structure, coupled with machine learning techniques. Stemming from the assumption that such recurrent problems are the realization of an unknown generative probabilistic model, data is collected from previous resolutions of such problems and used to train a supervised learning model for multi-label classification. This model is exploited to predict a subset of decision variables to be set heuristically to a certain reference value, thus becoming fixed parameters in the original problem. The remaining variables then form a smaller sub-problem whose solution, while...

[hal-02120615] Data multiplexing through animated texture orientation and color

Publications ENAC - Vendredi, 17 mai 2019 - 17:22:42
Multidimensional data visualization is still a challenge for complex data exploration. Usually, each data dimension might be mapped to one available visual variable such as position, shape or color. While spatial and color data mappings have been previously intensively explored, animated encodings have been far less investigated. However, such techniques are widely used in existing visualizations. In this paper, we propose to assess the visual assets of direction and orientation of directed animated textures to encode data. We present a user study that compares three animated textures and a static representation. The results suggest that the animated techniques can be as...

[hal-02122186] Cognitive Workload and Personality Style in Pilots Heart Rate Study

Publications ENAC - Vendredi, 17 mai 2019 - 17:06:18
The cognitive overload and emotion experienced by drivers become a primordial issue to study distraction. This is also the case in aviation, where pilots are commonly exposed to different sources of cognitive and emotional stressors and distractors [1]. Therefore, the integration of an online monitoring to assess the cognitive variations into the cockpit would be highly desirable to alert of delicate mental states. To this aim, reliable physiological measures are required. Electrocardiography (ECG) can be considered as one of the most suitable and cost-effective techniques providing powerful and relevant features to study driver distraction and cognitive workload [2, 3...

[tel-01833564] Contribution to flight guidance in high density traffic

Publications ENAC - Jeudi, 16 mai 2019 - 03:26:30
This work is developed with the perspective of SESAR and Next-Gen projects, where new applications of Air Traffic Management (ATM) such as the Full 4D Management concept, are centered on Trajectory-Based Operations (TBO), deeply related with the extension of the flexibility in separation between aircraft, and hence, with the augmentation of air traffic capacity. Therefore, since a shift from fixed routes and Air Traffic Control (ATC) clearances to flexible trajectories is imminent, while relying on higher levels of onboard automation, the thesis hinges around topics that should enable or ease the transition from current systems to systems compliant with the new...

[hal-02128390] Designing human-drone interactions with the Paparazzi UAV System

Publications ENAC - Mardi, 14 mai 2019 - 18:33:31
This paper presents the Paparazzi Unmanned Aircraft Vehicles (UAV) system and its use for designing novel interaction techniques for human-drone interactions. Paparazzi is a complete system of open source hardware and software for UAVs, including both the airborne autopilot as well as complete ground station mission planning and monitoring software utilizing a bi-directional data link for telemetry and control. We describe three examples of interactive systems built with Paparazzi to illustrate its capabilities to create new interactive UAV systems: augmented-reality glasses for safety pilots, adaptable interactions for pilots with disabilities and embedded interactions.

[hal-02104183] A process-oriented approach to the science of human-computer interaction

Publications ENAC - Mardi, 14 mai 2019 - 11:45:48
Since the birth of the field, HCI has defined itself both as a theory of the relations between humans and numerical systems and as a practical activity that aims at building new interactive systems. However, HCI has not yet succeeded in discovering a unified theoretical framework nor in building a strong link between both activities. Based on an analysis from various fields, we show that most of the difficulties come from the computational paradigm that is still used as a foundation of most of the theories in HCI. This brings us to proposing a new philosophical view on the science of HCI, based on a process ontology. We show how it accounts for several phenomena related...

[hal-02106469] Comparing Interaction Techniques to Help Blind People Explore Maps on Small Tactile Devices

Publications ENAC - Jeudi, 9 mai 2019 - 16:20:50
Exploring geographic maps on touchscreens is a difficult task in the absence of vision as those devices miss tactile cues. Prior research has therefore introduced non-visual interaction techniques designed to allow visually impaired people to explore spatial configurations on tactile devices. In this paper, we present a study in which six blind and six blindfolded sighted participants evaluated three of those interaction techniques compared to a screen reader condition. We observed that techniques providing guidance result in a higher user satisfaction and more efficient exploration. Adding a grid-like structure improved the estimation of distances. None of the...

[hal-02100767] Audio Focus: Interactive spatial sound coupled with haptics to improve sound source location in poor visibility

Publications ENAC - Lundi, 6 mai 2019 - 17:53:47
In an effort to simplify human resource management and reduce costs, control towers are now more and more designed to not be implanted directly on the airport but remotely. This concept, known as Remote Control Tower, offers a “digital” working context because the view on the runways is broadcast remotely via cameras, which are located on the physical airport. This offers researchers and engineers the possibility to develop novel interaction techniques. But this technology relies on the sense of sight, which is largely used to give the operator information and interaction, and which is now becoming overloaded. In this paper, we focus on the design and the testing of new...
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