A Self-enhancement Multitask Framework for Unsupervised Aspect Category Detection Thi-Nhung Nguyen author Hoang Ngo author Kiem-Hieu Nguyen author Tuan-Dung Cao 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 nguyen-etal-2023-self 10.18653/v1/2023.emnlp-main.500 https://aclanthology.org/2023.emnlp-main.500/ 2023-12 8043 8054