@inproceedings{ahybridframeworkforscalableopinion,
  title = {A Hybrid Framework for Scalable Opinion Mining in Social Media: Detecting Polarities and Attitude Targets},
  author = {Carlos Rodr{\'\i}guez-Penagos and Jens Grivolla and Joan Codina-Filba},
  year = {2012},
  booktitle = {WS 2012 4},
  url = {https://aclanthology.org/W12-0606},
}