Spatial language for human-robot dialogs

  • Authors:
  • M. Skubic;D. Perzanowski;S. Blisard;A. Schultz;W. Adams;M. Bugajska;D. Brock

  • Affiliations:
  • Electr. & Comput. Eng. Dept., Univ. of Missouri, Columbia, MO, USA;-;-;-;-;-;-

  • Venue:
  • IEEE Transactions on Systems, Man, and Cybernetics, Part C: Applications and Reviews
  • Year:
  • 2004

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Abstract

In conversation, people often use spatial relationships to describe their environment, e.g., "There is a desk in front of me and a doorway behind it," and to issue directives, e.g., "go around the desk and through the doorway." In our research, we have been investigating the use of spatial relationships to establish a natural communication mechanism between people and robots, in particular, for novice users. In this paper, the work on robot spatial relationships is combined with a multimodal robot interface. We show how linguistic spatial descriptions and other spatial information can be extracted from an evidence grid map and how this information can be used in a natural, human-robot dialog. Examples using spatial language are included for both robot-to-human feedback and also human-to-robot commands. We also discuss some linguistic consequences in the semantic representations of spatial and locative information based on this work.