The Representation and Use of Focus in a System for Understanding Dialogs
by Grosz, Barbara J.
Technical Note 150
Institution: AI Center, SRI International
Address: 333 Ravenswood Ave, Menlo Park, CA 94025
Note: To be presented at the 5th International Joint Conference on Artificial Intelligence, Cambridge, MA, August 22-25, 1977. Superseded by Tech Note 151.
As a dialog progresses, the objects and actions that are most relevant to the conversation, and hence in the focus of attention of the dialog participants, change. This paper describes a representation of focus for language understanding systems, emphasizing its use in understanding task-oriented dialogs.