102 research outputs found
A Change of Perspective: How User Orientation Influences the Perception of Physicalizations
As physicalizations encode data in their physical 3D form, the orientation in which the user is viewing the physicalization may impact the way the information is perceived. However, this relation between user orientation and perception of physical properties is not well understood or studied. To investigate this relation, we conducted an experimental study with 20 participants who viewed 6 exemplars of physicalizations from 4 different perspectives. Our findings show that perception is directly influenced by user orientation as it affects (i) the number and type of clusters, (ii) anomalies and (iii) extreme values identified within a physicalization. Our results highlight the complexity and variability of the relation between user orientation and perception of physicalizations
Towards Autocomplete Strategies for Visualization Construction
Constructive visualization uses physical data units - tokens - to enable
non-experts to create personalized visualizations engagingly. However, its
physical nature limits efficiency and scalability. One potential solution to
address this issue is autocomplete. By providing automated suggestions while
still allowing for manual intervention, autocomplete can expedite visualization
construction while maintaining expressivity. We conduct a speculative design
study to examine how people would like to interact with a visualization
authoring system that supports autocomplete. Our study identifies three types
of autocomplete strategies and gains insights for designing future
visualization authoring tools with autocomplete functionality. A free copy of
this paper and all supplemental materials are available on our online
repository https://osf.io/nu4z3/?view_only=594baee54d114a99ab381886fb32a126Comment: 5 pages, 4 figure
Visualization Empowerment: How to Teach and Learn Data Visualization
The concept of visualisation literacy encompasses the ability to read, write, and create visualiza- tions of data using digital or physical representations and is becoming an important asset for a data- literate, informed, and critical society. While many useful textbooks, blogs, and courses exist about data visualizationâcreated by both academics and practitionersâlittle is known about 1) how learning processes in the context of visualization unfold and 2) what are the best practices to engage and to teach the theory and practice of data visualization to diverse audiences, ranging from children to adults, from novices to advances, from students to professionals, and including different domain backgrounds. Hence, the aim of this Dagstuhl Seminar is to collect, discuss, and systematize knowledge around the education and teaching of data visualization to empower people making effective and unbiased use of this powerful medium. To that end, we aim to:âą Provide a cohesive overview of the state-of-the-art in visualization literacy (materials, skills, evaluation, etc.) and compile a comprehensive handbook for academics, teachers, and practitioners;âą Collect and systematize learning activities to inform teaching visualization across a widerange of education scenarios in the form of a teaching activities cook-book.âą Discuss open challenges and outline future research agendas to improve visualization literacyand education.Besides those outcomes, we aim to facilitate interdisciplinary research collaborations among attendees; researchers, practitioners, and educators from a wide range of background including data visualization, education, and data science
Investigating the design space of smartwatches combining physical rotary inputs
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
You say Potato, I say Po-Data:Physical Template Tools for Authoring Visualizations
Data visualization authoring tools for the general public remains an ongoing challenge. Inspired by block-printing, we explore how visualization stamps as a physical tool for authoring visualizations could leverage both visual freedom and ease of repetition. We conducted two workshops where participants authored visualizations on paper using hand-carved stamps made from potatoes and sponges. The low-fidelity medium freed participants to test new stamp patterns and accept mistakes. From the created visualizations, we observed several unique traits and uses of block-printing tools for authoring visualizations, including: modularity of patterns; annotation guides; creation of multiple patterns from one stamp; and various techniques to apply data onto paper. We discuss issues around expressivity and effectiveness of block-printing stamps in authoring visualizations, and identify implications for the design and assembly of primitives in potential visualization stamp kits, as well as applications for future use in non-digital environments
Memory Manipulations in Extended Reality
Human memory has notable limitations (e.g., forgetting) which have
necessitated a variety of memory aids (e.g., calendars). As we grow closer to
mass adoption of everyday Extended Reality (XR), which is frequently leveraging
perceptual limitations (e.g., redirected walking), it becomes pertinent to
consider how XR could leverage memory limitations (forgetting, distorting,
persistence) to induce memory manipulations. As memories highly impact our
self-perception, social interactions, and behaviors, there is a pressing need
to understand XR Memory Manipulations (XRMMs). We ran three speculative design
workshops (n=12), with XR and memory researchers creating 48 XRMM scenarios.
Through thematic analysis, we define XRMMs, present a framework of their core
components and reveal three classes (at encoding, pre-retrieval, at retrieval).
Each class differs in terms of technology (AR, VR) and impact on memory
(influencing quality of memories, inducing forgetting, distorting memories). We
raise ethical concerns and discuss opportunities of perceptual and memory
manipulations in XR
Self-reflection and personal physicalization construction
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 understanding of (1) the process of creating personal physicalizations, (2) the types of personal insights facilitated, (3) the integration of self-reflection 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.Postprin
Considering agency and data granularity in the design of visualization tools
The Ecuadorian Government supports Gonzalo Gabriel MĂ©ndez through a SENESCYT scholarship.Previous research has identified trade-offs when it comes to designing visualization tools. While constructive âbottom-upâ tools promote a hands-on, user-driven design process that enables a deep understanding and control of the visual mapping, automated tools are more efficient and allow people to rapidly explore complex alternative designs, often at the cost of transparency. We investigate how to design visualization tools that support a user-driven, transparent design process while enabling efficiency and automation, through a series of design workshops that looked at how both visualization experts and novices approach this problem. Participants produced a variety of solutions that range from example-based approaches expanding constructive visualization to solutions in which the visualization tool infers solutions on behalf of the designer, e.g., based on data attributes. On a higher level, these findings highlight agency and granularity as dimensions that can guide the design of visualization tools in this space.Postprin
Sketching sustainability in computing
We investigate engaging a computer science conference audience in sketching responses to the event as it occurs. In particular, we explore the response to inviting those present to engage in what is essentially an off-line, co-located, attendee-sourcing experience. Sketchnoting is a popular practice for documenting events, but these sketched records can be limited in scope at multi-track conferences, and paid professionals can be unaffordable at smaller events. Our challenges included: working with an audience with little or no experience of sketching or working with imagery; who were unaware of the possible benefits; and whose attendee engagement was variable - with individuals often working on laptops rather than actively listening during sessions. In order encourage engagement we hosted a pre-conference workshop, developed a conference-specific set of visual icons, and created prompt materials. This resulted in a remarkable visual record of the event, and also an increase in active listening and engagement
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