The paper talks about the importance of Interaction in Information Visualization. One interesting thing the paper mentions is that even with a static image, a user performs several interactions. The paper identifies several categories of interactions in InfoVis based on what the user wants to achieve from an interaction. This "user intent" criteria sounded appropriate and most prominent.
The author lists several categories of interaction and provides examples to portray the use of the method. This makes the method easier to understand in context. Among the categories, Reconfigure sounded important and interesting due to the application of jitter, in which the position of items is shifted to uncover many more items in a region.
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