A Listenability Index Consisting of Subjective Judgment and Objective Evaluation
A Listenability Index Consisting of Subjective Judgment and Objective Evaluation
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主观判断与客观评价相结合的听力指数
DOI：
10.1145/3175536.3175541
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发表时间：
2017
期刊：
影响因子：
--
通讯作者：
Yoshimi Takehiko
中科院分区：
文献类型：
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作者：
Kotani Katsunori;Yoshimi Takehiko
虽然使用网络上的听力材料对作为外语的英语学习/教学有很多好处，但它也有一个缺点，即教师在为学习者准备材料时需要检查听力水平，以避免与学习者的熟练程度不匹配，这是一项费时费力的任务。这是因为听力材料的难易程度（即可听性）是不受控制的，不像商业上可以买到的听力材料。然后,。可听性自动测量方法通过将听力材料按可听性等级进行分类，减少了教师的任务。以往使用自然语言处理技术的方法使用的可听性指标是由学习者对可听性的主观判断（以下简称SBJ）或学习者转录准确性的客观评价结果（以下简称OBJ）确定的。本研究结合SBJ和OBJ提出了第三种可听性指数，并报告了实验结果，验证了所提出的复合可听性指数的信度和效度。结果表明，与简单的可听性指标相比，可听性指标具有较高的信度和效度，且可听性测量具有较高的准确性。
Although the use of listening materials on the Internet has several advantages for learning/teaching English as a foreign language, it causes a drawback that teachers need to examine listenability in preparing materials for their learners to avoid mismatching with learners' proficiency, which is a time and effort consuming task. This is because the ease of listening materials (henceforth, listenability) is uncontrolled, unlike commercially available listening materials. Then,. An automatic listenability measurement method reduces teachers' task by classifying listening materials according to the listenability levels. Previous methods using natural language processing techniques used listenability indices determined by learners' subjective judgments on listenability (hereafter, SBJ) or objective evaluation results in terms of learners' transcription accuracy (hereafter, OBJ). This study proposes a third type of listenability index by combining SBJ and OBJ, and reports experimental results reading the reliability and validity of the proposed complex listenability index. The results demonstrated higher reliability and validity than simple listenability indices, and high accuracy of the listenability measurement.