C18-1059 Proceedings Association for Computational Linguistics 2018 Proceedings of the 27th International Conference on Computational Linguistics http://aclweb.org/anthology/C18-1059 700-710 Al-OlimatHussein GustafsonSteven MackayJason ThirunarayanKrishnaprasad ShethAmit A Practical Incremental Learning Framework For Sparse Entity Extraction