Creation of a Database of Japanese Compositions written by Learners of Japanese

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The purpose of this research Is to create a database of Japanese composition written by learners of Japanese. We assume that this kind of database will be useful to researchers In such fields as linguistics, second-language education, and second-language acquisition. The database was created based on the modified CHAT format of CHILDES.As the CHAT format was developed to study children's acquisition of their first language, we had to modify it to suit the purpose of our study. We have developed a detailed input manual and a list of keywords which should be used in describing the cause of errrors. Each sentence in a composition is followed by an error correction tier and error analysis tier. Error analysis Is described In natural language using keywords mentioned above. A format check program and search tool for our database have also been developed.Some files of compositions thus completed are available at the following location :http : //cookie.lang.nagoya-u.acjp/pub/