System and method of using modular spoken-dialog components

Details System and method of using modular spoken-dialog components System and method of using modular spoken-dialog components

2004-03-01

2008-09-30

Hudspeth, David R. (Department: 2626)

Data processing: speech signal processing, linguistics, language

Speech signal processing

Application

C704S270100, C379S070000, C379S076000, C379S088040, C700S094000

Reexamination Certificate

active

07430510

ABSTRACT:
A system and method are disclosed for switching contexts within a spoken dialog between a user and a spoken dialog system. The spoken dialog system utilizes modular subdialogs that are invoked by at least one flow controller that is a finite state model and that associated with a dialog manager. The spoken dialog system includes a dialog manager with a flow controller and a reusable subdialog module. The method includes, while the spoken dialog is being controlled by the subdialog module that was invoked by the flow controller, receiving context-changing input associated with speech from a user that changes a dialog context and comparing the context-changing input to at least one context shift. And, if any of the context shifts are activated by the comparing step, then passing control of the spoken dialog to the flow controller with context shift message and destination state.

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Survey of Existing Interactive System, Peter Bohlin, Johan Bos, Staffan Larsson, Ian Lewin, Colin Matheson, David Milward, The TRINDI Project, Department of Linguinstics, Göteborg University, Gothenburg, Sweden, Feb. 1999.

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