Treemap Literacy: A Classroom-Based Investigation

Fırat, Elif E.; Denisova, Alena; Laramee, Robert S.

doi:10.2312/eged.20201032

Cited by 7 publications

(22 citation statements)

References 20 publications

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“…Research by Firat et al 22 identifies the barriers and challenges of understanding and creating treemaps by examining the results of 2 years of an information visualization assignment. In order to assess the barriers, a treemap visualization literacy test is developed.…”

Section: The State-of-the-art On Interactive Visualization Literacymentioning

confidence: 99%

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Interactive visualization literacy: The state-of-the-art

Fırat

Joshi²,

Laramee

2022

Information Visualization

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With the advent of novel visualization techniques to convey complex information, data visualization literacy is growing in importance. Two facets of literacy are user understanding and the discovery of visual patterns with the help of graphical representations. The research literature on visualization literacy provides useful guidance and important opportunities for further studies in this field. This survey examines and classifies prior research on visualization literacy that analyzes how well users understand novel data representations. To our knowledge, this is the first comprehensive survey paper with a focus on interactive visualization literacy. We categorize existing relevant research into unique subject groups that facilitate and inform comparisons of related literature and provide an overview of the same. Additionally, the survey/classification also provides an overview of the various evaluation techniques used in this field of research due to their challenging nature. Our novel classification enables researchers to find both mature and unexplored directions that may lead to future work. This survey serves as a valuable resource for both beginners and experienced researchers interested in the topic of visualization literacy.

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Section: The State-of-the-art On Interactive Visualization Literacymentioning

confidence: 99%

“…Pre- and post-experiment tests in a classroom evaluation environment are the most popular across all categories. Bishop et al 27 and Firat et al 22 incorporate a classroom evaluation.…”

Section: Introductionmentioning

confidence: 99%

Interactive visualization literacy: The state-of-the-art

Fırat

Joshi²,

Laramee

2022

Information Visualization

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“…Fully active approaches onboard users while interacting with a visualization, for instance, by enabling two-way communication [EAB13], or through context-aware annotations [EB12]. Active approaches have been shown to be more effective than passive ones in specific cases [FDL20].…”

Section: Related Workmentioning

confidence: 99%

A Process Model for Dashboard Onboarding

Dhanoa¹,

Walchshofer²,

Hinterreiter³

et al. 2021

Preprint

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Dashboards are used ubiquitously to gain and present insights into data by means of interactive visualizations.To bridge the gap between non-expert dashboard users and potentially complex datasets and/or visualizations, a variety of onboarding strategies are employed, including videos, narration, and interactive tutorials. We propose a process model for dashboard onboarding which formalizes and unifies such diverse onboarding strategies. Our model introduces the onboarding loop alongside the dashboard usage loop. Unpacking the onboarding loop reveals how each onboarding strategy combines selected building blocks of the dashboard with an onboarding narrative. Specific means are applied to this narration sequence for onboarding, which results in onboarding artifacts that are presented to the user via an interface. We concretize these concepts by showing how our process model can be used to describe a selection of real-world onboarding examples. Finally, we discuss how our model can serve as an actionable blueprint for developing new onboarding systems.

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“…They used sca olding as a pedagogical method which immediately provides feedback to the users if the visual mapping was correct. More recently, Firat et al [20] developed an interactive pedagogical treemap application for training. The conducted study revealed that students who interacted with the tool outperformed students who only learned through slides before taking the literacy test.…”

Section: Related Workmentioning

confidence: 99%

“…The authors describe an additional advantage of learning-by-analogy over other forms of demonstrations such as textual or oral descriptions as they bridge any language barriers. [20] Besides scientific literature, onboarding concepts are integrated in commercial visualization tools as well. Nowadays most of these commercial visualization tools already integrate onboarding concepts focusing on the explanation of features.…”

Section: Related Workmentioning

confidence: 99%

Design and Comparative Evaluation of Visualization Onboarding Methods

Stoiber

Walchshofer²,

Grassinger

et al. 2021

The 14th International Symposium on Visual Information Communication and Interaction

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Comprehending and exploring large and complex data is becoming increasingly important for a diverse population of users in a wide range of application domains. Visualization has proven to be well-suited in supporting this endeavor by tapping into the power of human visual perception. However, nonexperts in the field of visual data analysis often have problems with correctly reading and interpreting information from visualization idioms that are new to them. To support novices in learning how to use new digital technologies, the concept of onboarding has been successfully applied in other fields and first approaches also exist in the visualization domain. However, empirical evidence on the e ectiveness of such approaches is scarce. Therefore, we conducted three studies with Amazon Mechanical Turk (MTurk) workers and students investigating visualization onboarding at di erent levels: (1) Firstly, we explored the e ect of visualization onboarding, using an interactive step-by-step guide, on user performance for four increasingly complex visualization techniques with time-oriented data: a bar chart, a horizon graph, a change matrix, and a parallel coordinates plot. We performed a between-subject experiment with 596 participants in total. The results showed that there are no significant di erences between the answer correctness of the questions with and without onboarding. Furthermore, participants commented that for highly familiar visualization types no onboarding is needed. ( 2) We performed a second study with MTurk workers to assess if there is a di erence in user performances on di erent visualization onboarding types: step-by-step, scrollytelling tutorial, and video tutorial. The study revealed that the video tutorial was ranked as the most positive on average, based on a sentiment analysis, followed by the scrollytelling tutorial and the interactive step-by-step guide. (3) For our third study, we gathered data towards users' experience in using the in-situ scrollytelling for the VA tool Netflower. The results of the evaluation with students showed that they preferred scrollytelling over the tutorial integrated in the Netflower landing page. Moreover, for all three studies we explored the e ect of task di culty. In summary, the in-situ scrollytelling approach works well for integrating onboarding in a visualization tool. Additionally, a video tutorial can help to introduce interaction techniques of a visualization.

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Treemap Literacy: A Classroom-Based Investigation

Cited by 7 publications

References 20 publications

Interactive visualization literacy: The state-of-the-art

Interactive visualization literacy: The state-of-the-art

A Process Model for Dashboard Onboarding

Design and Comparative Evaluation of Visualization Onboarding Methods

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