@inproceedings{ecnucsasurfaceinformationbasedsystem,
  title = {ECNUCS: A Surface Information Based System Description of Sentiment Analysis in Twitter in the SemEval-2013 (Task 2)},
  author = {Tiantian Zhu and Fangxi Zhang and Lan Man},
  year = {2013},
  booktitle = {SEMEVAL 2013 6},
  url = {https://aclanthology.org/S13-2067},
}