Bottom-Up Abstractive Summarization Sebastian Gehrmann author Yuntian Deng author Alexander Rush author 2018-oct-nov text Proceedings of the 2018 Conference on Empirical Methods in Natural Language Processing Ellen Riloff editor David Chiang editor Julia Hockenmaier editor Jun’ichi Tsujii editor Association for Computational Linguistics Brussels, Belgium conference publication gehrmann-etal-2018-bottom 10.18653/v1/D18-1443 https://aclanthology.org/D18-1443/ 2018-oct-nov 4098 4109