Storybase: Towards Building a Knowledge Base for News Events Zhaohui Wu author Chen Liang author C Lee Giles author 2015-07 text Proceedings of ACL-IJCNLP 2015 System Demonstrations Hsin-Hsi Chen editor Katja Markert editor Association for Computational Linguistics and The Asian Federation of Natural Language Processing Beijing, China conference publication wu-etal-2015-storybase 10.3115/v1/P15-4023 https://aclanthology.org/P15-4023/ 2015-07 133 138