Self-Supervised Learning for Contextualized Extractive Summarization Hong Wang author Xin Wang author Wenhan Xiong author Mo Yu author Xiaoxiao Guo author Shiyu Chang author William Yang Wang author 2019-07 text Proceedings of the 57th Annual Meeting of the Association for Computational Linguistics Anna Korhonen editor David Traum editor Lluís Màrquez editor Association for Computational Linguistics Florence, Italy conference publication wang-etal-2019-self-supervised 10.18653/v1/P19-1214 https://aclanthology.org/P19-1214/ 2019-07 2221 2227