Jointly Multiple Events Extraction via Attention-based Graph Information Aggregation Xiao Liu author Zhunchen Luo author Heyan Huang 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 liu-etal-2018-jointly 10.18653/v1/D18-1156 https://aclanthology.org/D18-1156/ 2018-oct-nov 1247 1256