Controlling Switching Pause using an AR Agent for Interactive CALL System
Controlling Switching Pause using an AR Agent for Interactive CALL System
复制标题
使用 AR 代理控制交互式呼叫系统的切换暂停
DOI：
10.1007/978-3-319-07854-0_102
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发表时间：
2014
期刊：
影响因子：
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通讯作者：
Yutaka Hiroi and Akinori Ito
中科院分区：
文献类型：
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作者：
Naoto Suzuki;Takashi Nose;Yutaka Hiroi and Akinori Ito
我们正在开发一个语音交互式CALL（计算机辅助语言学习）系统，以提供更多的机会，更好的英语会话练习。CALL系统有几种类型，我们着重介绍一种口语对话系统进行对话练习。当用户对系统的话语做出回答时，做出回答话语的定时可能是不自然的，因为当用户保持沉默时系统通常不做出任何反应，因此学习者倾向于花费比人类对应物更多的时间来对系统做出回答。然而，目前还没有一个框架来抑制停顿和练习适当的停顿时间。在本研究中，我们做了一个实验来调查AR字符的存在效果，以分析字符本身作为对应物的效果。此外，我们还分析了两个人话语之间的停顿（转换停顿）。切换停顿与其会话的流畅性有关。此外，我们引入了一个虚拟人物实现的增强现实（AR）作为对话的对手来控制切换暂停。在这里，我们设置了“时间压力”行为的特征，以防止学习者花很长时间考虑话语。为了验证表达是否有效地控制切换暂停，我们设计了一个实验。实验在有或没有表达的情况下进行。因此，我们发现，开关暂停持续时间变得显着缩短时，代理人作出的时间压力的表达。
We are developing a voice-interactive CALL (Computer-Assisted Language Learning) system to provide more opportunity for better English conversation exercise. There are several types of CALL system, we focus on a spoken dialogue system for dialogue practice. When the user makes an answer to the system’s utterance, timing of making the answer utterance could be unnatural because the system usually does not make any reaction when the user keeps silence, and therefore the learner tends to take more time to make an answer to the system than that to the human counterpart. However, there is no framework to suppress the pause and practice an appropriate pause duration.In this research, we did an experiment to investigate the effect of presence of the AR character to analyze the effect of character as a counterpart itself. In addition, we analyzed the pause between the two person’s utterances (switching pause). The switching pause is related to the smoothness of its conversation. Moreover, we introduced a virtual character realized by AR (Augmented Reality) as a counterpart of the dialogue to control the switching pause. Here, we installed the character the behavior of “time pressure” to prevent the learner taking long time to consider the utterance.To verify if the expression is effective for controlling switching pause, we designed an experiment. The experiment was conducted with or without the expression. Consequently, we found that the switching pause duration became significantly shorter when the agent made the time-pressure expression.