IJCNLP-2017 Task 4: Customer Feedback Analysis Chao-Hong Liu author Yasufumi Moriya author Alberto Poncelas author Declan Groves author 2017-12 text Proceedings of the IJCNLP 2017, Shared Tasks Chao-Hong Liu editor Preslav Nakov editor Nianwen Xue editor Asian Federation of Natural Language Processing Taipei, Taiwan conference publication liu-etal-2017-ijcnlp https://aclanthology.org/I17-4004/ 2017-12 26 33