@article{acar2016comprehensive,
  title={A comprehensive study on mid-level representation and ensemble learning for emotional analysis of video material},
  author={Acar, Esra and Hopfgartner, Frank and Albayrak, Sahin},
  journal={Multimedia Tools and Applications},
  pages={1--29},
  year={2016},
  publisher={Springer US}, 
  issn="1573-7721",
  doi="10.1007/s11042-016-3618-5"
}