Thus, this study regards acronyms (with and without translation) and alias as Japanese Table 2: Top 10 frequent parenthetical expressions used in Japanese newspapers from 1998-1999 abbreviations in a broad sense, based on their interchangeabilities.
the goal of this study is to classify parenthetical expressions X (Y) into true abbreviations (groups I, II, III) and other usages of parentheses (group IV).