MTMineR (Multilingual Text Miner with R) is a free software for the study and education of text corpus mining, which has been in development for nearly 20 years. It transforms unstructured documents in Japanese, Chinese, Korean, English, German, French, and Italian into structured data and then drives R to conduct analyses. All operations are designed to be performed by specifying arguments (if necessary) and pressing buttons. The primary functions include preprocessing, data transformation and data retrieval, and analysis by using various visualization methods, principal component analysis, correspondence analysis, latent topic model, support vector machine, and random forest. Furthermore, MTMineR includes various necessary functions for linguistics and stylistic science research.
The author analyzed the words in Kokugo textbooks used in Japanese elementary schools and built a vocabulary syllabus database called "COSMOS" that provides information on words that are useful for the Japanese language support of JSL children.
Specifically, 1) A total of 275,541 words are extracted from the first to fourth grades’ Kokugo textbooks, which are approved by the Ministry of Education and are collectively published by Mitsumura Tosho Publishing, Sanseido, Tokyo Shoseki, Gakko Tosho, and Kyoiku-shuppan. A database of the words was created with the information about the grade, page number, unit name, work title, author, notation in the text, basic word form, pronunciation, meaning, section, and 10 types of parts of speech for each word included. 2) Next, the lexical features of elementary school Kokugo textbooks are derived from the analysis of this database, and the degree of difficulty of the words in elementary school Kokugo textbooks is compared with Japanese Language Proficiency Test Examination Standards [Revised Edition] (2002). 3) Based on the above, the web platform "COSMOS" was created and released as a model of the JSL Kokugo textbook vocabulary syllabus. The platform shows how to support learning when returning Japanese children and foreign children take Japanese language courses entering elementary school.
In this paper, I explain the method of online survey using Google form. First, eight items are described as advantages of Google forms. Next, the procedure for creating a form is introduced step by step. Finally, here are some useful Google features that authors frequently use and points to keep in mind.