Social Tag: Finding the Person with the Pink Hat

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At the AAAI 2005 Robot Exhibition, the robot GRACE played a game of "social tag" that involved human-robot social interaction, navigation, and interface design. The task was for GRACE to locate and rendezvous with one of our team members, who was wearing a pink hat. The robot found the target not primarily through the modalities of sight or sound, but rather through social interactions with strangers in the environment.