@ARTICLE{18TMMSentiment, 
  author={J. Yang and D. She and M. Sun and Ming-Ming Cheng and P. Rosin and L. Wang}, 
  journal={IEEE Transactions on Multimedia}, 
  title={Visual Sentiment Prediction based on Automatic Discovery of Affective Regions}, 
  year={2018}, 
  volume={20}, 
  number={9}, 
  pages={2513-2525}, 
  doi={10.1109/TMM.2018.2803520}, 
}