Unsupervised Opinion Summarisation in the Wasserstein Space Jiayu Song author Iman Munire Bilal author Adam Tsakalidis author Rob Procter author Maria Liakata author 2022-12 text Proceedings of the 2022 Conference on Empirical Methods in Natural Language Processing Yoav Goldberg editor Zornitsa Kozareva editor Yue Zhang editor Association for Computational Linguistics Abu Dhabi, United Arab Emirates conference publication song-etal-2022-unsupervised 10.18653/v1/2022.emnlp-main.589 https://aclanthology.org/2022.emnlp-main.589/ 2022-12 8592 8607