5th International Conference on Spoken Language Processing

Sydney, Australia
November 30 - December 4, 1998

Spoken Language Understanding Within Dialogs Using a Graphical Model of Task Structure

Jeremy H. Wright, Allen L. Gorin, Alicia Abella

AT&T Labs - Research, USA

We describe a procedure for contextual interpretation of spoken sentences within dialogs. Task structure is represented in a graphical form, enabling the interpreter algorithm to be efficient and task-independent. Recognized spoken input may consist either of a single sentence with utterance-verification scores, or of a word lattice with arc weights. A confidence model is used throughout and all inferences are probability-weighted. The interpretation consists of a probability for each class and for each auxiliary information label needed for task completion. Anaphoric references are permitted.

Full Paper

Bibliographic reference.  Wright, Jeremy H. / Gorin, Allen L. / Abella, Alicia (1998): "Spoken language understanding within dialogs using a graphical model of task structure", In ICSLP-1998, paper 0385.