衡量文本中的词汇多样性:双重长度问题

IF 3.5 1区 文学 Q1 EDUCATION & EDUCATIONAL RESEARCH Language Learning Pub Date : 2024-02-08 DOI:10.1111/lang.12630
Yves Bestgen
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引用次数: 0

摘要

一个多世纪以来,文本长度对词汇多样性估算的影响一直是科学界关注的焦点。人们提出了许多指数,也进行了许多研究来评估这些指数,但问题依然存在。本方法论综述不仅对语言学习研究中最常用的指数进行了批判性分析,还对长度问题本身以及评估所提解决方案的方法进行了分析。对英语学习者所写文本的三个数据集的分析表明,使用概率或算法方法将所有文本缩减为相同长度的指数解决了长度依赖问题;但是,所有这些指数都未能解决第二个问题,即它们对决定文本缩减长度的参数的敏感性。本文最后提出了优化词汇多样性分析的建议。
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Measuring Lexical Diversity in Texts: The Twofold Length Problem

The impact of text length on the estimation of lexical diversity has captured the attention of the scientific community for more than a century. Numerous indices have been proposed, and many studies have been conducted to evaluate them, but the problem remains. This methodological review provides a critical analysis not only of the most commonly used indices in language learning studies, but also of the length problem itself, as well as of the methodology for evaluating the proposed solutions. Analysis of three data sets of texts produced by English language learners revealed that indices that reduce all texts to the same length using a probabilistic or an algorithmic approach solve the length-dependency problem; however, all these indices failed to address the second problem, which is their sensitivity to the parameter that determines the length to which the texts are reduced. The paper concludes with recommendations for optimizing lexical diversity analysis.

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来源期刊
Language Learning
Language Learning Multiple-
CiteScore
9.10
自引率
15.90%
发文量
65
期刊介绍: Language Learning is a scientific journal dedicated to the understanding of language learning broadly defined. It publishes research articles that systematically apply methods of inquiry from disciplines including psychology, linguistics, cognitive science, educational inquiry, neuroscience, ethnography, sociolinguistics, sociology, and anthropology. It is concerned with fundamental theoretical issues in language learning such as child, second, and foreign language acquisition, language education, bilingualism, literacy, language representation in mind and brain, culture, cognition, pragmatics, and intergroup relations. A subscription includes one or two annual supplements, alternating among a volume from the Language Learning Cognitive Neuroscience Series, the Currents in Language Learning Series or the Language Learning Special Issue Series.
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