An Enhanced Image Classification Model Based on Graph Classification and Superpixel-Derived CNN Features for Agricultural Datasets. - Thi Phuong Thao Nguyen; Tho Thong Nguyen; Huu Quynh Nguyen; Tien Duc Nguyen; Chu Kien Nguyen; Nguyen Giap Cu (Comput. Mater. Continua, 2025)