Chao-Hong Liu Yasufumi Moriya Alberto Poncelas Declan Groves IJCNLP-2017 Task 4: Customer Feedback Analysis. 26-33 2017 IJCNLP (Shared Tasks) https://aclanthology.org/I17-4004/ conf/ijcnlp/2017-st db/conf/ijcnlp/ijcnlp2017-st.html#LiuMPG17