Paul A Warren

schoolUniversity of Manchesterbar_chart#6869 Global Rank

Total Papers

HCI Rank

#6869

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Years Active

Recent Publications

Effects of Alternative Scatterplot Designs on Belief

Viewers tend to underestimate correlation in positively correlated scatterplots. However, systematically changing the size and opacity of scatterplot points can bias estimates upwards, correcting for this underestimation. Here, we examine whether the application of these visualisation techniques goes beyond a simple p…

CHI '243rd AuthorInteractive Data Visualization +1

Effects of Point Size and Opacity Adjustments in Scatterplots

Systematically changing the size and opacity of points on scatterplots can be used to induce more accurate perceptions of correlation by viewers. Evidence points to the mechanisms behind these effects being similar, so one may expect their combination to be additive regarding their effects on correlation estimation. W…

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