Oolong: Investigating What Makes Transfer Learning Hard with Controlled Studies Zhengxuan Wu author Alex Tamkin author Isabel Papadimitriou 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 wu-etal-2023-oolong 10.18653/v1/2023.emnlp-main.198 https://aclanthology.org/2023.emnlp-main.198/ 2023-12 3280 3289