Abstract
It is still an open question whether software agentsshould be personified in the interface. In order to study theeffects of faces and facial expressions in the interface, aseries of experiments was conducted to compare subjects'responses to and evaluation of different faces and facialexpressions.The experimental results obtained demonstrate that: 1)personified interfaces help users engage in a task, and arewell suited for an entertainment domain; 2) people'simpressions of a face in a...

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