Development of a Computer Automated Scoring Test of Spoken Japanese Using Speech Recognition Techniques

我们为日语学习者开发了一种计算机口语测试，它可以在计算机上自动评估口语能力。它将可以随时随地在互联网上访问。自动评分系统是通过语音识别技术实现的，该技术从话语中获取声学特征。该系统是一种基于项目反应理论的计算机化自适应测试，它通过调整考生的能力和测试项目的难度，以相对较少的测试项目来评价口语能力。

We have developed a computer speaking test for Japanese learners, which automatically evaluates speaking ability on computers. It will be accessible on the internet anytime, anywhere. The automatic scoring system is implemented through speech recognition techniques, which obtains acoustic features from the utterance. The system is a computerized adaptive test based on Item Response Theory, which makes it possible to evaluate the speaking ability with relatively fewer test items by adjusting to the ability of test takers and to the difficulty of the test items.