Structured Self-Supervised Pretraining for Commonsense Knowledge Graph Completion Jiayuan Huang author Yangkai Du author Shuting Tao author Kun Xu author Pengtao Xie author 2021 text journal article Transactions of the Association for Computational Linguistics continuing MIT Press Cambridge, MA periodical academic journal huang-etal-2021-structured 10.1162/tacl_a_00426 https://aclanthology.org/2021.tacl-1.75/ 2021 9 1268 1284