Adaptive Uncertainty Visualization With jk-Plots

Authors

Nikolaus Piccolotto (TU Wien), Daniel Pahr (University of Vienna), Laura Lotteraner (University of Vienna), Fatih Öztank (Vienna University of Technology), Markus Bögl (TU Wien)

Presentation

Session: Can We Trust This Chart? (Asking for a Friend)
Time: Wednesday, Nov 11, 08:54 – 09:03 (US/Eastern) · session 08:00 – 09:30
Location: Hall America south

Keywords

Uncertainty visualization

Abstract

An important task of uncertainty visualizations is to communicate how the number of available observations influences the precision of estimates, such as a Normal distribution’s mean. In this paper, we propose an adaptive approach to visualizing univariate data that produces salient representations while highlighting the uncertainty introduced by the sample size. We introduce jk-plots, inspired by educational material of Bayesian statistics, that combine visualizations of plausible reference models (emulating popular uncertainty visualization idioms) and the observations. We describe a visualization pipeline to create jk-plots, which we implemented in an R package. We demonstrate jk-plots using synthetic datasets of varying size and discuss possible usage scenarios in domain expert interviews.

For Practitioners

Practitioners who communicate uncertainty could consider applying these visualization idioms.