@misc{W2951278869,
  author = {Bo Pang and Lillian Lee and Shivakumar Vaithyanathan},
  title = {Thumbs up? Sentiment Classification using Machine Learning Techniques},
  year = {2002},
  howpublished = {arXiv (Cornell University)},
  doi = {https://doi.org/10.48550/arxiv.cs/0205070}
}