Clarification Dialogues as Measure to Increase Robustness in a Spoken Dialogue SystemElisabeth Maier; Norbert Reithinger; Jan Alexandersson
In: Proceedings of the ACL-97 Workshop "Interactive Spoken Dialog Systems: Bringing Speech and NLP Together in Real Applications". ACL/EACL Workshop on Interactive Spoken Dialog Systems: Bringing Speech and NLP Together in Real Applications, July 11-12, Madrid, Spain, 7/1997.
A number of methods are implemented in the face-to-face translation system Verbmobil to improve its robustness. In this paper, we describe clarification dialogues as one method to deal with incomplete or inconsistent information. Currently, three types of clarification dialogues are realized: subdialogues concerning phonological ambiguities, unknown words and semantic inconsistencies. For each clarification type we discuss the detection of situations and system states which lead to their initialization and explain the information flow during processing.