Huang, Qianru, Qingmei Dong, Yunlong Liu, Deqing Ji, and Qinwei Fan. “A Sigma-Pi-Sigma Neural Network Model With Graph Regularity Term”. Frontiers in Computing and Intelligent Systems 7, no. 2 (March 11, 2024): 34–37. Accessed June 27, 2026. https://drpress.org/ojs/index.php/fcis/article/view/17883.