The development of an automated scoring system for English learners' speech in discourse completion task and its evaluation

点击翻译按钮获取中文摘要

The purpose of this study is to develop an automated speech scoring system for learners of English, applying the speech recognition technology that recently used on personal computers and smart phone. The system automatically scores learners' speech elicited by Discourse Completion Task where learners are required to speak in a situation. The degree of accuracy of speech recognition depends heavily on a situation and contents of speaking. In the tasks with the high degree of accuracy of recognition, the system produces reliable scores, which means that the system edges closer to practical use.