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Whole-body movements enhance the presence and enjoyment of Virtual Reality (VR) experiences. However, using large gestures is often uncomfortable and impossible in confined spaces (e.g., public transport). We introduce FingerMapper, mapping small-scale finger motions onto virtual arms and hands to enable whole-body virtual movements in VR. In a first target selection study (n=13) comparing FingerMapper to hand tracking and ray-casting, we found that FingerMapper can significantly reduce physical motions and fatigue while having a similar degree of precision. In a consecutive study (n=13), we compared FingerMapper to hand tracking inside a confined space (the front passenger seat of a car). The results showed participants had significantly higher perceived safety and fewer collisions with FingerMapper while preserving a similar degree of presence and enjoyment as hand tracking. Finally, we present three example applications demonstrating how FingerMapper could be applied for locomotion and interaction for VR in confined spaces., 14 pages, 15 figures

International audience; Self-reflection is a central goal of personal informatics systems, and constructing visualizations from physical tokens has been found to help people reflect on data. However, so far, constructive physicalization has only been studied in lab environments with provided datasets. Our qualitative study investigates the construction of personal physicalizations in people’s domestic environments over 2–4 weeks. It contributes an understandingof (1) the process of creating personal physicalizations, (2) the types of personal insights facilitated, (3) the integration of selfreflection in the physicalization process, and (4) its benefits and challenges for self-reflection. We found that in constructive personal physicalization, data collection, construction and self-reflections are deeply intertwined. This extends previous models of visualization creation and data-driven self-reflection.We outline how benefits such as reflection through manual construction, personalization, and presence in everyday life can be transferred to a wider set of digital and physical systems.

International audience; Watches benefit from a long design history. Designers and engineers have successfully built devices using rotary physical inputs such as crowns, bezels, and wheels, separately or combined. Smart watch designers have explored the use of some of these inputs for interactions. However, a systematic exploration of their combinations has yet to be done. We investigate the design space of interactions with multiple rotary inputs through a three stages exploration. (1) We build upon observations of a collection of 113 traditional or electronic watches to propose a typology of physical rotary inputs for watches. (2) We conduct two focus groups to explore combination of physical rotary inputs. (3) We then build upon the output of these focus groups to design a low fidelity prototype, and further discuss the potential and challenges of rotary inputs combinations during a third focus group.; L’histoire des montres est pleine d’exemples utilisant une ou plusieurs modalités tangibles d’interaction comme les couronnes, les lunettes et les molettes. Pourtant les concepteurs de "smartwatches" ont seulement exploré un sous ensemble de ces mécanisme et surtout n’ont pas considéré la possibilité de les combiner. Dans cet article, nous étudions les possibilités o ertes par la combinaison de plusieurs de ces mécanismes rotatifs en trois étapes pour les smartwatches. (1) Nous rassemblons une collection de 113 montres traditionnelles ou électroniques pour faire une typologie de leurs mécanismes rotatifs, (2) dont les combinaisons sont explorées et discutées durant deux focus groups. (3) Ces discussions nous mènent à développer un prototype pour discuter des potentiels et des défis des combinaisons d’entrées rotatives au cours d’un troisième focus group.

We present Landscape, a new visualization for representing energy consumption designed for non-expert users into their households. We identified 3 reasons which would explain their lack of interest: Complexity of the energy units, specifics domestic behaviors, unsuitable visualizations for non-expert users. We designed an app inspired by Postcards metaphor. Landscape represents synthetized and aesthetics dataset. This article introduces indicators design, metaphorical work and graphical representations.

Research in sonification and physicalization have expanded data representation techniques to include senses beyond the visual. Yet, little is known of how people interpret and make sense of haptic and sonic compared to visual representations. We have conducted two phenomenologically oriented comparative studies (applying the Repertory Grid and the Microphenomenological interview technique) to gather in-depth accounts of people's interpretation and experience of different representational modalities that included auditory, haptic and visual variations . Our findings show a rich characterization of these different representational modalities: our visually oriented representations engage through their familiarity, accuracy and easy interpretation, while our representations that stimulated auditory and haptic interpretation were experienced as more ambiguous, yet stimulated an engaging interpretation of data that involved the whole body. We describe and discuss in detail participants' processes of making sense and generating meaning using the modalities' unique characteristics, individually and as a group. Our research informs future research in the area of multimodal data representations from both a design and methodological perspective. Postprint

International audience; Uncertainty plays an important and complex role in data analysis , where the goal is to find pertinent patterns, build robust models, and support decision making. While these endeavours are often associated with professional data scientists, many domain experts engage in such activities with varying skill levels. To understand how these domain experts (or "data workers") analyse uncertain data we conducted a qualitative user study with 12 participants from a variety of domains. In this paper, we describe their various coping strategies to understand, min-imise, exploit or even ignore this uncertainty. The choice of the coping strategy is influenced by accepted domain practices, but appears to depend on the types and sources of uncertainty and whether participants have access to support tools. Based on these findings, we propose a new process model of how data workers analyse various types of uncertain data and conclude with design considerations for uncertainty-aware data analytics.

Best Paper Honorable Mention; International audience; If visualization is to be democratized, we need to provide means for non-experts to create visualizations that allow them to engage directly with datasets. We present constructive visualization a new paradigm for the simple creation of flexible, dynamic visualizations. Constructive visualization is simple--in that the skills required to build and manipulate the visualizations are akin to kindergarten play; it is expressive-- in that one can build within the constraints of the chosen environment, and it also supports dynamics -- in that these constructed visualizations can be rebuilt and adjusted. We de- scribe the conceptual components and processes underlying constructive visualization, and present real-world examples to illustrate the utility of this approach. The constructive visualization approach builds on our inherent understanding and experience with physical building blocks, offering a model that enables non-experts to create entirely novel visualizations, and to engage with datasets in a manner that would not have otherwise been possible.; Si la visualisation doit être démocratisé, il faut concevoir des moyens engageants qui permettent aux personnes non-expertes de créer des visualisations. Nous présentons la *construction de visualisation* un nouveau paradigme pour la création simple de visualisations dynamiques, et flexibles. Ce paradigme est simple car les compétences ces nécessaires a mettre en œuvre pour construire et manipuler une visualisations sont semblables à celle développer à l'école maternelle; il est expressif - dans la mesure des contraintes de l'environnement choisi; et il permet également les mises à jour dynamique - les visualisations construites peuvent être reconstruits et adaptés. Nous décrivons les composants conceptuels et processus sous-jacents des visualisations constructives, et nous présentons des exemples concrets pour illustrer l'utilité de cette approche. L'approche de visualisation constructif s'appuie sur notre compréhension et notre expérience des manipulations de blocs de construction physique, offrant un modèle qui permet aux non-experts de créer entièrement de nouvelles visualisations, tout en s'engageant dans une activité de manipulation et d'analyse de données d'une façons qui n'aurait pas été possible autrement.

International audience; Query logs let by user on search-engines have helped create efficient tools for trend analysis, from commercial use to fore- casting epidemics. In this paper, we propose a new method and system for cultural trends analysis based on Google auto- complete suggestions. We present Zeitgeist Borders, a toolkit enabling any user to collect and analyze associations between queries, suggestions and various regions of the world. We re- port unexpected observations about several behavioural and geographical trends along with promising uses.