7th International Conference on Spoken Language Processing

September 16-20, 2002
Denver, Colorado, USA

Flexible Dialogue Management in the TalkíníTravel System

David Stallard

BBN Technologies, USA

A central problem for mixed-initiative dialogue management is coping with user utterances that fall outside of the expected sequence of the dialogue. Independent initiative by the user may require a complete revision of the future course of the dialogue, even when the system is engaged in activities of its own, such as querying a database, etc. This paper presents an event-driven, goal-based dialogue manager component we have developed to cope with these challenges. The dialog manager is explicitly architected for asynchronous input and flexible control, and uses a tree-ordered rule language we have developed that also provides for close coupling with discourse processing. The dialogue manager is implemented as part of TalkíníTravel, a simulated air travel reservation dialogue system we have developed under the DARPA Communicator dialogue research program.


Full Paper

Bibliographic reference.  Stallard, David (2002): "Flexible dialogue management in the talk≤nítravel system", In ICSLP-2002, 2693-2696.