CoCo: Coherence-Enhanced Machine-Generated Text Detection Under Low Resource With Contrastive Learning Xiaoming Liu author Zhaohan Zhang author Yichen Wang author Hang Pu author Yu Lan author Chao Shen author 2023-12 text Proceedings of the 2023 Conference on Empirical Methods in Natural Language Processing Houda Bouamor editor Juan Pino editor Kalika Bali editor Association for Computational Linguistics Singapore conference publication liu-etal-2023-coco 10.18653/v1/2023.emnlp-main.1005 https://aclanthology.org/2023.emnlp-main.1005/ 2023-12 16167 16188