多目标情感分类中文数据集构建及分析研究(Construction and Analysis of Chinese Multi-Target Sentiment Classification Dataset) Pengyuan Liu author Yongsheng Tian author Chengyu Du author Likun Qiu author 2020-10 text zho Proceedings of the 19th Chinese National Conference on Computational Linguistics Maosong Sun editor Sujian Li editor Yue Zhang editor Yang Liu editor Chinese Information Processing Society of China Haikou, China conference publication liu-etal-2020-duo https://aclanthology.org/2020.ccl-1.56/ 2020-10 604 615