Multi-channel BiLSTM-CRF Model for Emerging Named Entity Recognition in Social Media Bill Y Lin author Frank Xu author Zhiyi Luo author Kenny Zhu author 2017-09 text Proceedings of the 3rd Workshop on Noisy User-generated Text Leon Derczynski editor Wei Xu editor Alan Ritter editor Tim Baldwin editor Association for Computational Linguistics Copenhagen, Denmark conference publication lin-etal-2017-multi 10.18653/v1/W17-4421 https://aclanthology.org/W17-4421/ 2017-09 160 165