Diagrammatic Representation and Reasoning: Three perspectives. Over the past three decades, the role of diagrammatic representations in reasoning processes has been investigated from three distinct perspectives: (i) a computational modeling perspective, (ii) a spatial assistance perspective, and (iii) with respect to the interplay of mental representations and external diagrams. Despite their different foci, these perspectives are in fact highly complementary because they all address questions of how diagrams support intelligent reasoning processes, both in humans and in machines.
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