Zhai, Weixin, Zekun Lyu, Zhichao Li, Jiawen Pan, Defang Li, Deming Sun, Usmon Mamur Mahmadyorzoda, and Nozim Numon Alizoda. 2026. “SSL-GAT: A Self-Supervised Learning-Based Graph Attention Network for Agricultural Machinery Trajectory Operation Mode Identification”. International Journal of Agricultural and Biological Engineering 19 (2). Beijing, China:282-93. https://ijabe.org/index.php/ijabe/article/view/9966.