N-EIoU-YOLOv9: A Signal-Aware Bounding Box Regression Loss for Lightweight Mobile Detection of Rice Leaf Diseases. - Dung Ta Nguyen Duc; Thanh Bui Dang; Hoang Le Minh; Tung Nguyen Viet; Huong Nguyen Thanh; Dong Trinh Cong (CoRR, 2026)