SSL-STR: Semi-Supervised Learning for Sparse Trust Recommendation. - Zhengdi Hu; Guangquan Xu; Xi Zheng 001; Jiang Liu; Xiaojiang Du (GLOBECOM, 2019)

SSL-SVD: Semi-supervised Learning-based Sparse Trust Recommendation. - Zhengdi Hu; Guangquan Xu; Xi Zheng 001; Jiang Liu; Zhangbing Li; Quan Z. Sheng; Wenjuan Lian; Hequn Xian (ACM Trans. Internet Techn., 2020)