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Sensors 2018, 18(5), 1581; https://doi.org/10.3390/s18051581

An Efficient Framework for Development of Task-Oriented Dialog Systems in a Smart Home Environment

1
Department of Engineering, Computer Science, Sogang University, Seoul 04107, Korea
2
Department of Software, Gachon University, Gyeonggi-do 13120, Korea
*
Author to whom correspondence should be addressed.
Received: 6 March 2018 / Revised: 10 May 2018 / Accepted: 14 May 2018 / Published: 16 May 2018
(This article belongs to the Special Issue Smart Homes)
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Abstract

In recent times, with the increasing interest in conversational agents for smart homes, task-oriented dialog systems are being actively researched. However, most of these studies are focused on the individual modules of such a system, and there is an evident lack of research on a dialog framework that can integrate and manage the entire dialog system. Therefore, in this study, we propose a framework that enables the user to effectively develop an intelligent dialog system. The proposed framework ontologically expresses the knowledge required for the task-oriented dialog system’s process and can build a dialog system by editing the dialog knowledge. In addition, the framework provides a module router that can indirectly run externally developed modules. Further, it enables a more intelligent conversation by providing a hierarchical argument structure (HAS) to manage the various argument representations included in natural language sentences. To verify the practicality of the framework, an experiment was conducted in which developers without any previous experience in developing a dialog system developed task-oriented dialog systems using the proposed framework. The experimental results show that even beginner dialog system developers can develop a high-level task-oriented dialog system. View Full-Text
Keywords: dialog framework; smart home; intelligent virtual assistant; natural language understanding dialog framework; smart home; intelligent virtual assistant; natural language understanding
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Park, Y.; Kang, S.; Seo, J. An Efficient Framework for Development of Task-Oriented Dialog Systems in a Smart Home Environment. Sensors 2018, 18, 1581.

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