“…Recently, transfer learning is becoming a popular technology, since it can improve identifying performance based on data similarity (Hamidzadeh, 2015;Pan & Yang, 2010;Shao & Suzuki, 2011;Yang, Mccreadie, & Macdonald, 2017;Yin, Yu, & Sohn, 2018;Yoshida, Kitazono, Ozawa, Sugawara, & Haga, 2016). It has been used in many fields, e.g.…”