Bishan Yang Tom M. Mitchell Joint Extraction of Events and Entities within a Document Context. 289-299 2016 HLT-NAACL https://doi.org/10.18653/v1/n16-1033 https://aclanthology.org/N16-1033/ conf/naacl/2016 db/conf/naacl/naacl2016.html#YangM16