ID | 60820 |
フルテキストURL | |
著者 |
Supitayakul, Parisa
Okayama University
Leelaprute, Pattara
Department of Computer Engineering, Faculty of Engineering, Kasetsart University
|
抄録 | This study focuses on computer based foreign language vocabulary learning systems. Our objective is to automatically build vocabulary decks with desired levels of relative difficulty relations. To realize this goal, we exploit the fact that word frequency is a good indicator of vocabulary difficulty. Subsequently, for composing the decks, we pose two requirements as uniformity and diversity. Namely, the difficulty level of the cards in the same deck needs to be uniform enough so that they can be grouped together and difficulty levels of the cards in different decks need to be diverse enough so that they can be grouped in different decks. To assess uniformity and diversity, we use rank-biserial correlation and propose an iterative algorithm, which helps in attaining desired levels of uniformity and diversity based on word frequency in daily use of language. In experiments, we employed a spaced repetition flashcard software and presented users various decks built with the proposed algorithm, which contain cards from different content types. From users' activity logs, we derived several behavioral variables and examined the polyserial correlation between these variables and difficulty levels across different word classes. This analysis confirmed that the decks compiled with the proposed algorithm induce an effect on behavioral variables in line with the expectations. In addition, a series of experiments with decks involving varying content types confirmed that this relation is independent of word class.
|
キーワード | e-learning
vocabulary learning
log file analysis
|
発行日 | 2020-08-01
|
出版物タイトル |
IEICE Transactions on Information and Systems
|
巻 | E103.D巻
|
号 | 8号
|
出版者 | Institute of Electronics, Information and Communication Engineers
|
開始ページ | 1865
|
終了ページ | 1874
|
ISSN | 0916-8532
|
NCID | AA10826272
|
資料タイプ |
学術雑誌論文
|
言語 |
英語
|
OAI-PMH Set |
岡山大学
|
著作権者 | © 2020 The Institute of Electronics, Information and Communication Engineers
|
論文のバージョン | publisher
|
DOI | |
Web of Science KeyUT | |
関連URL | isVersionOf https://doi.org/10.1587/transinf.2019EDP7279
|
助成機関名 |
日本学術振興会
|
助成番号 | J18K18168
|