Automatic Scoring for Prosodic Proficiency of English Sentences Spoken by Japanese Based on Utterance Comparison
Automatic Scoring for Prosodic Proficiency of English Sentences Spoken by Japanese Based on Utterance Comparison
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基于话语比较的日语英语句子韵律能力自动评分
DOI：
10.1093/ietisy/e88-d.3.496
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发表时间：
2005
期刊：
影响因子：
--
通讯作者：
K. Nozawa
中科院分区：
文献类型：
--
作者：
Yoichi Yamashita;K. Kato;K. Nozawa
本文描述了日本人说的英语句子韵律熟练程度的评分方法。多元回归模型根据日本英语初学者的特点，采用新的韵律测量方法对韵律水平进行预测。韵律测量是通过比较学习者和母语说话者的语音的韵律参数，如F0，功率和时长来计算的。新的衡量标准包括拟合线的逼近误差和针对词边界的有限段而不是整个语篇的韵律参数比较结果。研究发现，新措施的引入使教师的成绩与自动成绩之间的相关性提高了0.1。
This paper describes techniques of scoring prosodic proficiency of English sentences spoken by Japanese. The multiple regression model predicts the prosodic proficiency using new prosodic measures based on the characteristics of Japanese novice learners of English. Prosodic measures are calculated by comparing prosodic parameters, such as F0, power and duration, of learner's and native speaker's speech. The new measures include the approximation error of the fitting line and the comparison result of prosodic parameters for a limited segment of the word boundary rather than the whole utterance. This paper reveals that the introduction of the new measures improved the correlation by 0.1 between the teachers' and automatic scores.