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  • 1
    Electronic Resource
    Electronic Resource
    Large-vocabulary Data-centric Dialogues (1999)
    Springer
    BT technology journal 17 (1999), S. 149-159 
    Details
    ISSN: 1573-1995
    Source: Springer Online Journal Archives 1860-2000
    Topics: Electrical Engineering, Measurement and Control Technology
    Notes: Abstract Data-centric speech dialogues using large-vocabulary speech have been investigated at BT Laboratories for some time now. The research to data has been focused on applications such as directory access, customer identification, auto-attendant and transaction completion. General lessons have been learned which are applicable to many goal-seeking dialogues where the vocabulary of the task is defined by the data sought. Several trials have been run which have provided evidence of good dialogue design principles. This paper presents a framework for the dialogue design of such services, discussing topics such as mixing spelling with spoken entry and the issues of confirmation and offering of information. In addition, the difficulties of designing for confusions due to homophones and synonyms have also been addressed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1023/A:1009691328645
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Towards Fluency-structured Dialogues with Natural Speech Input (1999)
    Springer
    BT technology journal 17 (1999), S. 178-186 
    Details
    ISSN: 1573-1995
    Source: Springer Online Journal Archives 1860-2000
    Topics: Electrical Engineering, Measurement and Control Technology
    Notes: Abstract This paper presents the results of a study into how structured dialogue techniques in IVR systems can be extended to allow more natural speech interaction with the caller. A spoken language system was produced which allows callers to set reminder calls or bar outgoing or incoming telephone calls. In spite of the limits of speech recognition performance, the resulting system had a highly natural speech interface which allowed the caller to optionally offer one or more pieces of information at a time.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1023/A:1009647530462
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    Effects of Prompt Style on User Responses to an Automated Banking Service Using Word-Spotting (1999)
    Springer
    BT technology journal 17 (1999), S. 160-171 
    Details
    ISSN: 1573-1995
    Source: Springer Online Journal Archives 1860-2000
    Topics: Electrical Engineering, Measurement and Control Technology
    Notes: Abstract Two experiments were performed to measure the effects of differing styles of prompt wording in a simulated telephone banking service incorporating a speech recogniser with word-spotting capabilities. It was found that users gave longer input utterances in response to an 'open' style of prompt ('How can I help you?') than in response to a 'closed' prompt which was more specific as to what input was expected, and that when a help facility was offered most users said 'help' straight away. However, no significant difference was found in attitudes to the different versions of the service. Also no attitude difference was found with varying recognition accuracy. This may have been partly due to inadequate vocabulary coverage obscuring the effect of accuracy within the vocabulary, but the results suggest also that small numbers of recognition errors may have little impact on user attitude provided that the intended result of the call is achieved — this is a topic where further research could be valuable.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1023/A:1009643412715
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    Paper (German National Licenses)
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