Abstractive Timeline Summarization Julius Steen author Katja Markert author 2019-11 text Proceedings of the 2nd Workshop on New Frontiers in Summarization Lu Wang editor Jackie Chi Kit Cheung editor Giuseppe Carenini editor Fei Liu editor Association for Computational Linguistics Hong Kong, China conference publication steen-markert-2019-abstractive 10.18653/v1/D19-5403 https://aclanthology.org/D19-5403/ 2019-11 21 31