Tom Williams and Saurav Acharya and Stephanie Schreitter and Matthias Scheutz
11th ACM/IEEE International Conference on Human-Robot Interaction
A robot participating in natural dialogue with a human interlocutor may need to discuss, reason about, or initiate actions concerning dialogue-referenced entities. To do so, the robot must first identify or create new representations for those entities, a capability known as /reference resolution/. We previously presented algorithms for resolving references occurring in definite noun phrases. In this paper we present an algorithm for resolving references occurring in a wider array of linguistic forms, by making novel extensions to the Givenness Hierarchy, and evaluate the proposed algorithm on natural task-based human-human and human-robot dialogues.