TAILIEUCHUNG - Báo cáo khoa học: "Developing A Flexible Spoken Dialog System Using Simulation"

In this paper, we describe a new methodology to develop mixed-initiative spoken dialog systems, which is based on the extensive use of simulations to accelerate the development process. With the help of simulations, a system providing information about a database of nearly 1000 restaurants in the Boston area has been developed. The simulator can produce thousands of unique dialogs which benefit not only dialog development but also provide data to train the speech recognizer and understanding components, in preparation for real user interactions. . | Developing A Flexible Spoken Dialog System Using Simulation Grace Chung Corporation for National Research Initiatives 1895 Preston White Drive Suite 100 Reston VA 20191 gchung@ Abstract In this paper we describe a new methodology to develop mixed-initiative spoken dialog systems which is based on the extensive use of simulations to accelerate the development process. With the help of simulations a system providing information about a database of nearly 1000 restaurants in the Boston area has been developed. The simulator can produce thousands of unique dialogs which benefit not only dialog development but also provide data to train the speech recognizer and understanding components in preparation for real user interactions. Also described is a strategy for creating cooperative responses to user queries incorporating an intelligent language generation capability that produces content-dependent verbal descriptions of listed items. 1 Introduction Spoken dialog systems have traditionally been difficult to instantiate because of the extensive efforts required for configuring each component from the natural language NL understanding to the domainspecific context tracking and dialog engines. This task is particularly involved when building systems that empower users with greater flexibility at the spoken input via mixed-initiative interaction Zue et al. 2000 Ferguson and Allen 1998 and systems that enable querying across large and frequently changing databases. The goal of this work is to assemble natural spoken dialog interfaces that enable flexible interactions through mixed initiative dialog and cooperative responses. Such interfaces aim to help users navigate large information spaces such as on-line databases. Conventional systems generally guide the users through a series of scripted prompts either through This research is sponsored in part by SPAWAR SSC-SD. The content of this paper does not necessarily reflect the position or policy of the .

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