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The nature of visualizations and the social uses to which they are put rely heavily on pointing, or to use the linguistic term, deixis. Of particular importance for visualization excellence is an understanding of effective deictic facilities, especially new techniques enabled by computation. In this paper, we (1) explain what deixis is, (2) say why it is fundamental to visualization, (3) analyze some of what is required for effective deixis in the context of emergent visualization technology, and (4) provide an accompanying video demonstration of deictic techniques for visualization.
Hill et al. (Tue,) studied this question.