Improving Event Temporal Relation Classification via Auxiliary Label-Aware Contrastive Learning Sun Tiesen author Li Lishuang author 2022-10 text eng Proceedings of the 21st Chinese National Conference on Computational Linguistics Maosong Sun editor Yang Liu editor Wanxiang Che editor Yang Feng editor Xipeng Qiu editor Gaoqi Rao editor Yubo Chen editor Chinese Information Processing Society of China Nanchang, China conference publication tiesen-lishuang-2022-improving https://aclanthology.org/2022.ccl-1.76/ 2022-10 861 871