Speech-Based Interactive Information Guidance System using Question-Answering Technique
Speech-Based Interactive Information Guidance System using Question-Answering Technique
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DOI：
10.1109/icassp.2007.367184
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发表时间：
2007-04
期刊：
影响因子：
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通讯作者：
Teruhisa Misu;Tatsuya Kawahara
中科院分区：
文献类型：
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作者：
Teruhisa Misu;Tatsuya Kawahara
提出了一种基于文档知识库的交互式信息导航框架。在传统的音频引导系统中，例如部署在博物馆中的那些音频引导系统，信息流是单向的并且内容是固定的。为了使一个交互式的指导系统，我们提出了问答（QA）技术的应用。由于用户倾向于在连续的问题中使用照应表达式，我们研究了基于主题检测的上下文信息的适当处理，以及在ASR输出中使用N-最佳信息的效果。此外，我们将QA技术应用到系统主动信息推荐的生成中。实施了京都城市信息导航系统。所提出的技术的有效性得到证实，通过现场试验的一些真实的新手用户。
This paper addresses an interactive framework for information navigation based on document knowledge base. In conventional audio guidance systems, such as those deployed in museums, the information flow is one-way and the content is fixed. In order to make an interactive guidance system, we propose the application of question-answering (QA) techniques. Since users tend to use anaphoric expressions in successive questions, we investigate appropriate handling of contextual information based on topic detection, together with the effect of using N-best information in ASR output. Moreover, we apply the QA technique to generation of system-initiative information recommendation. A navigation system on Kyoto city information was implemented. Effectiveness of the proposed techniques was confirmed through a field trial by a number of real novice users.