Spoken dialog system based on dual dialog management using hierarchical dialog task library
First Claim
1. A spoken dialog system based on dual dialog management using a hierarchical dialog task library for a system response suitable for a user utterance input, the system comprising:
- a dialog knowledge database (DB) to store dialog knowledge required to achieve a dialog goal of a domain task;
a hierarchical task based dialog knowledge managing unit to update the dialog knowledge DB with subtask dialog knowledge that is constructed or newly generated by a dialog service designer using subtask dialog knowledge; and
a spoken dialog processing engine unit to perform a dialog with a user by repeatedly performing a process of recognizing a user utterance as a user utterance sentence, generating a system utterance text referring to the dialog knowledge DB in order to achieve the dialog goal of the domain task, and thereby outputting the generated system utterance text using voice.
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Abstract
The present invention relates to a spoken dialog system and method based on dual dialog management using a hierarchical dialog task library that may increase reutilization of dialog knowledge by constructing and packaging the dialog knowledge based on a task unit having a hierarchical structure, and may construct and process the dialog knowledge using a dialog plan scheme about relationship therebetween by classifying the dialog knowledge based on a task unit to make design of a dialog service convenient, which is different from an existing spoken dialog system in which it is difficult to reuse dialog knowledge since a large amount of construction costs and time is required.
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Citations
11 Claims
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1. A spoken dialog system based on dual dialog management using a hierarchical dialog task library for a system response suitable for a user utterance input, the system comprising:
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a dialog knowledge database (DB) to store dialog knowledge required to achieve a dialog goal of a domain task; a hierarchical task based dialog knowledge managing unit to update the dialog knowledge DB with subtask dialog knowledge that is constructed or newly generated by a dialog service designer using subtask dialog knowledge; and a spoken dialog processing engine unit to perform a dialog with a user by repeatedly performing a process of recognizing a user utterance as a user utterance sentence, generating a system utterance text referring to the dialog knowledge DB in order to achieve the dialog goal of the domain task, and thereby outputting the generated system utterance text using voice. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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Specification