Paper: Empirical Studies Of Discourse Representations For Natural Language Interfaces

ACL ID E89-1039
Title Empirical Studies Of Discourse Representations For Natural Language Interfaces
Venue Annual Meeting of The European Chapter of The Association of Computational Linguistics
Session Main Conference
Year 1989
Authors

We present the results from a series of ex- periments aimed at uncovering the discourse structure of man-machine communication in nat- ural language (Wizard of Oz experiments). The results suggest the existence of different classes of dialogue situations, requiring computational discourse representations of various complexity. Important factors seem to be the number of dif- ferent permissible tasks in the system and to what extent the system takes initiative in the dialogue. We also analyse indexical expressions and espe- cially the use of pronouns, and suggest a psy- chological explanation of their restricted oc- currence in these types of dialogues.