On the Challenges and Opportunities of Physically Situated Dialog

We outline several challenges and opportunities for building physically situated systems that can interact in open, dynamic, and relatively unconstrained environments. We review a platform and recent progress on developing computational methods for situated, multiparty, open-world dialog, and highlight the value of representations of the physical surroundings and of harnessing the broader situational context when managing communicative processes such as engagement, turn taking, language understanding, and dialog management. Finally, we outline an open-world learning challenge that spans these different levels