天宇高 兴城瑶 陈丹奇0001 SimCSE：句子嵌入的简单对比学习。 6894-6910 2021 EMNLP（1） https://doi.org/10.18653/v1/2021.emnlp-main.552 https://aclantology.org/2021.emnlp-main.552 https://orkg.org/orkg/resource/R197018 conf/emnlp/2021-1 db/conf/emnlp/emnlp2021-1.html#GaoYC21