Michael Correll
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View article: Visual Stenography: Feature Recreation and Preservation in Sketches of Noisy Line Charts
Visual Stenography: Feature Recreation and Preservation in Sketches of Noisy Line Charts Open
Line charts surface many features in time series data, from trends to periodicity to peaks and valleys. However, not every potentially important feature in the data may correspond to a visual feature which readers can detect or prioritize.…
View article: An Autoethnography on Visualization Literacy: A Wicked Measurement Problem
An Autoethnography on Visualization Literacy: A Wicked Measurement Problem Open
We contribute an autoethnographic reflection on the complexity of defining and measuring visualization literacy (i.e., the ability to interpret and construct visualizations) to expose our tacit thoughts that often exist in-between polished…
View article: An Autoethnography on Visualization Literacy: A Wicked Measurement Problem
An Autoethnography on Visualization Literacy: A Wicked Measurement Problem Open
We contribute an autoethnographic reflection on the complexity of defining and measuring visualization literacy (i.e., the ability to interpret and construct visualizations) to expose our tacit thoughts that often exist in-between polished…
View article: Tasks and Telephones: Threats to Experimental Validity due to Misunderstandings of Visualisation Tasks and Strategies Position Paper
Tasks and Telephones: Threats to Experimental Validity due to Misunderstandings of Visualisation Tasks and Strategies Position Paper Open
Empirical studies in visualisation often compare visual representations to identify the most effective visualisation for a particular visual judgement or decision making task. However, the effectiveness of a visualisation may be intrinsica…
View article: The Data-Wink Ratio: Emoji Encoder for Generating Semantically-Resonant Unit Charts
The Data-Wink Ratio: Emoji Encoder for Generating Semantically-Resonant Unit Charts Open
Communicating data insights in an accessible and engaging manner to a broader audience remains a significant challenge. To address this problem, we introduce the Emoji Encoder, a tool that generates a set of emoji recommendations for the f…
View article: Tasks and Telephones: Threats to Experimental Validity due to Misunderstandings of Visualisation Tasks and Strategies (Position Paper)
Tasks and Telephones: Threats to Experimental Validity due to Misunderstandings of Visualisation Tasks and Strategies (Position Paper) Open
Empirical studies in visualisation often compare visual representations to identify the most effective visualisation for a particular visual judgement or decision making task. However, the effectiveness of a visualisation may be intrinsica…
View article: Data Guards: Challenges and Solutions for Fostering Trust in Data
Data Guards: Challenges and Solutions for Fostering Trust in Data Open
From dirty data to intentional deception, there are many threats to the validity of data-driven decisions. Making use of data, especially new or unfamiliar data, therefore requires a degree of trust or verification. How is this trust estab…
View article: Odds and Insights: Decision Quality in Exploratory Data Analysis Under Uncertainty
Odds and Insights: Decision Quality in Exploratory Data Analysis Under Uncertainty Open
Recent studies have shown that users of visual analytics tools can have difficulty distinguishing robust findings in the data from statistical noise, but the true extent of this problem is likely dependent on both the incentive structure m…
View article: When the Body Became Data: Historical Data Cultures and Anatomical Illustration
When the Body Became Data: Historical Data Cultures and Anatomical Illustration Open
With changing attitudes around knowledge, medicine, art, and technology, the human body has become a source of information and, ultimately, shareable and analyzable data. Centuries of illustrations and visualizations of the body occur with…
View article: Toward a More Comprehensive Understanding of Visualization Literacy
Toward a More Comprehensive Understanding of Visualization Literacy Open
Researchers have proposed many definitions of visualization literacy, targeting various aspects of the term. But we have yet to fully capture what it really means to be literate in visualizations, which has important downstream implication…
View article: When the Body Became Data: Historical Data Cultures and Anatomical Illustration
When the Body Became Data: Historical Data Cultures and Anatomical Illustration Open
With changing attitudes around knowledge, medicine, art, and technology, the human body has become a source of information and, ultimately, shareable and analyzable data. Centuries of illustrations and visualizations of the body occur with…
View article: Odds and Insights: Decision Quality in Exploratory Data Analysis Under Uncertainty
Odds and Insights: Decision Quality in Exploratory Data Analysis Under Uncertainty Open
Recent studies have shown that users of visual analytics tools can have difficulty distinguishing robust findings in the data from statistical noise, but the true extent of this problem is likely dependent on both the incentive structure m…
View article: Heuristics for Supporting Cooperative Dashboard Design
Heuristics for Supporting Cooperative Dashboard Design Open
Dashboards are no longer mere static displays of metrics; through functionality such as interaction and storytelling, they have evolved to support analytic and communicative goals like monitoring and reporting. Existing dashboard design gu…
View article: Toward a Scalable Census of Dashboard Designs in the Wild: A Case Study with Tableau Public
Toward a Scalable Census of Dashboard Designs in the Wild: A Case Study with Tableau Public Open
Dashboards remain ubiquitous artifacts for presenting or reasoning with data across different domains. Yet, there has been little work that provides a quantifiable, systematic, and descriptive overview of dashboard designs at scale. We pro…
View article: <i>Teru Teru Bōzu</i>: Defensive Raincloud Plots
<i>Teru Teru Bōzu</i>: Defensive Raincloud Plots Open
Univariate visualizations like histograms, rug plots, or box plots provide concise visual summaries of distributions. However, each individual visualization may fail to robustly distinguish important features of a distribution, or provide …
View article: Troubling Collaboration: Matters of Care for Visualization Design Study
Troubling Collaboration: Matters of Care for Visualization Design Study Open
A common research process in visualization is for visualization researchers to collaborate with domain experts to solve particular applied data problems. While there is existing guidance and expertise around how to structure collaborations…
View article: Teru Teru Bōzu: Defensive Raincloud Plots
Teru Teru Bōzu: Defensive Raincloud Plots Open
Univariate visualizations like histograms, rug plots, or box plots provide concise visual summaries of distributions. However, each individual visualization may fail to robustly distinguish important features of a distribution, or provide …
View article: Troubling Collaboration: Matters of Care for Visualization Design Study
Troubling Collaboration: Matters of Care for Visualization Design Study Open
A common research process in visualization is for visualization researchers to collaborate with domain experts to solve particular applied data problems. While there is existing guidance and expertise around how to structure collaborations…
View article: Heuristics for Supporting Cooperative Dashboard Design
Heuristics for Supporting Cooperative Dashboard Design Open
Dashboards are no longer mere static displays of metrics; through functionality such as interaction and storytelling, they have evolved to support analytic and communicative goals like monitoring and reporting. Existing dashboard design gu…
View article: Fitting Bell Curves to Data Distributions Using Visualization
Fitting Bell Curves to Data Distributions Using Visualization Open
Idealized probability distributions, such as normal or other curves, lie at the root of confirmatory statistical tests. But how well do people understand these idealized curves? In practical terms, does the human visual system allow us to …
View article: Are We Making Progress In Visualization Research?
Are We Making Progress In Visualization Research? Open
In this work, I use a survey of senior visualization researchers and thinkers to ideate about the notion of progress in visualization research: how are we growing as a field, what are we building towards, and are our existing methods suffi…
View article: OSCAR: A Semantic-based Data Binning Approach
OSCAR: A Semantic-based Data Binning Approach Open
Binning is applied to categorize data values or to see distributions of data. Existing binning algorithms often rely on statistical properties of data. However, there are semantic considerations for selecting appropriate binning schemes. S…
View article: Recommendations for Visualization Recommendations: Exploring Preferences and Priorities in Public Health
Recommendations for Visualization Recommendations: Exploring Preferences and Priorities in Public Health Open
The promise of visualization recommendation systems is that analysts will be automatically provided with relevant and high-quality visualizations that will reduce the work of manual exploration or chart creation. However, little research t…
View article: Untidy Data: The Unreasonable Effectiveness of Tables
Untidy Data: The Unreasonable Effectiveness of Tables Open
Working with data in table form is usually considered a preparatory and tedious step in the sensemaking pipeline; a way of getting the data ready for more sophisticated visualization and analytical tools. But for many people, spreadsheets …
View article: Towards a Theory of Bullshit Visualization
Towards a Theory of Bullshit Visualization Open
In this unhinged rant, I lay out my suspicion that a lot of visualizations are bullshit: charts that do not have even the common decency to intentionally lie but are totally unconcerned about the state of the world or any practical utility…
View article: Illegible Semantics: Exploring the Design Space of Metal Logos
Illegible Semantics: Exploring the Design Space of Metal Logos Open
The logos of metal bands can be by turns gaudy, uncouth, or nearly illegible. Yet, these logos work: they communicate sophisticated notions of genre and emotional affect. In this paper we use the design considerations of metal logos to exp…
View article: User Ex Machina : Simulation as a Design Probe in Human-in-the-Loop Text Analytics
User Ex Machina : Simulation as a Design Probe in Human-in-the-Loop Text Analytics Open
Topic models are widely used analysis techniques for clustering documents and surfacing thematic elements of text corpora. These models remain challenging to optimize and often require a "human-in-the-loop" approach where domain experts us…