A Deep Learning System for Sentiment Analysis of Service Calls Yanan Jia author 2020-07 text Proceedings of the 3rd Workshop on e-Commerce and NLP Shervin Malmasi editor Surya Kallumadi editor Nicola Ueffing editor Oleg Rokhlenko editor Eugene Agichtein editor Ido Guy editor Association for Computational Linguistics Seattle, WA, USA conference publication jia-2020-deep 10.18653/v1/2020.ecnlp-1.4 https://aclanthology.org/2020.ecnlp-1.4/ 2020-07 24 34