Browsing by Author "Alexander, Eric"

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    Perceptual Biases in Font Size as a Data Encoding
    (IEEE, 2017-07-04) Alexander, Eric; Chang, Chih-Ching; Shimabukuro, Mariana; Franconeri, Steven; Collins, Christopher; Gleicher, Michael
    Many visualizations, including word clouds, cartographic labels, and word trees, encode data within the sizes of fonts. While font size can be an intuitive dimension for the viewer, using it as an encoding can introduce factors that may bias the perception of the underlying values. Viewers might conflate the size of a word’s font with a word’s length, the number of letters it contains, or with the larger or smaller heights of particular characters (‘o’ vs. ‘p’ vs. ‘b’). We present a collection of empirical studies showing that such factors—which are irrelevant to the encoded values—can indeed influence comparative judgements of font size, though less than conventional wisdom might suggest. We highlight the largest potential biases, and describe a strategy to mitigate them.
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    Visualization and the Digital Humanities: Moving Toward Stronger Collaborations
    (IEEE, 2018-12-01) Bradley, Adam James; El-Assady, Mennatallah; Coles, Katharine; Alexander, Eric; Chen, Min; Collins, Christopher; Jänicke, Stefan; Joseph, David
    For the past two years, researchers from the visualization community and the digital humanities have come together at the IEEE VIS conference to discuss how both disciplines can work together to push research goals in their respective disciplines. In this paper, we present our experiences as a result of this collaboration.