DialogXML: extending VoiceXML for dynamic dialog management

  • Authors:
  • Eric Nyberg;Teruko Mitamura;Nobuo Hataoka

  • Affiliations:
  • Carnegie Mellon University, Pittsburgh, PA;Carnegie Mellon University, Pittsburgh, PA;Central Research Laboratory, Hitachi Ltd., Kokubunji, Tokyo, Japan

  • Venue:
  • HLT '02 Proceedings of the second international conference on Human Language Technology Research
  • Year:
  • 2002

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Abstract

The characteristics of VoiceXML make it an attractive choice for the implementation of embedded dialog systems on networked hardware. Nevertheless, VoiceXML lacks some important features found in existing proprietary approaches. It is difficult to build a complex, multi-dialog system directly in VoiceXML. This paper describes DialogXML, an extension to VoiceXML that supports a more implicitly declarative language for dialog scenarios, and ScenarioXML, a straightforward combination of DialogXML with the template-filling mechanism of Java Server Pages. The paper describes an initial prototype system, which extends the OpenVXI VoiceXML interpreter for DialogXML, implements a web server for ScenarioXML, and utilizes the KANTOO natural language analyzer for understanding user inputs.