@inproceedings{Marsden2020_InvestigatingClassLevel,
  title = "Investigating Class-level Difficulty Factors in Multi-label Classification Problems",
  authors = "Mark Marsden and Kevin McGuinness and Joseph Antony and Haolin Wei and Milan Redzic and Jian Tang and Zhilan Hu and Alan Smeaton and Noel E O'Connor",
  booktitle = "IEEE International Conference on Multimedia and Expo (ICME)",
  year = "2020"
}