Nancy Rodriguez

Anthony Brunel, Johanna Pasquet, Jérôme Pasquet et al.

Cosmologists are facing the problem of the analysis of a huge quantity of data when observing the sky. The methods used in cosmology are, for the most of them, relying on astrophysical models, and thus, for the classification, they usually use a machine learning approach in two-steps, which consists in, first, extracting features, and second, using a classifier. In this paper, we are specifically studying the supernovae phenomenon and especially the binary classification "I.a supernovae versus not-I.a supernovae". We present two Convolutional Neural Networks (CNNs) defeating the current state-of-the-art. The first one is adapted to time series and thus to the treatment of supernovae light-curves. The second one is based on a Siamese CNN and is suited to the nature of data, i.e. their sparsity and their weak quantity (small learning database).

Jean-Daniel Taupiac, Nancy Rodriguez, Olivier Strauss

When working with emergent and appealing technologies as Virtual Reality, Mixed Reality and Augmented Reality, the issue of definitions appear very often. Indeed, our experience with various publics allows us to notice that technology definitions pose ambiguity and representation problems for informed as well as novice users. In this paper we present Immercity, a content curation system designed in the context of a collaboration between the University of Montpellier and CapGemi-ni, to deliver a technology watch. It is also used as a testbed for our experiences with Virtual, Mixed and Augmented reality to explore new interaction techniques and devices, artificial intelligence integration, visual affordances, performance , etc. But another, very interesting goal appeared: use Immercity to communicate about Virtual, Mixed and Augmented Reality by using them as a support.

Nancy Rodriguez

Virtual reality allows to create situations which can be experimented under the control of the user, without risks, in a very flexible way. This allows to develop skills and to have confidence to work in real conditions with real equipment. VR is then widely used as a training and learning tool. More recently, VR has also showed its potential in rehabilitation and therapy fields because it provides users with the ability of repeat their actions several times and to progress at their own pace. In this communication, we present our work in the development of a wheelchair simulator designed to allow children with multiple disabilities to familiarize themselves with the wheelchair.