QoE beyond the MOS: an in-depth look at QoE via better metrics and their relation to MOS

@article{Hossfeld2016QoEBT,
  title={QoE beyond the MOS: an in-depth look at QoE via better metrics and their relation to MOS},
  author={Tobias Hossfeld and Poul Einar Heegaard and Mart{\'i}n Varela and Sebastian M{\"o}ller},
  journal={Quality and User Experience},
  year={2016},
  volume={1},
  pages={1-23}
}
While Quality of Experience (QoE) has advanced very significantly as a field in recent years, the methods used for analyzing it have not always kept pace. When QoE is studied, measured or estimated, practically all the literature deals with the so-called Mean Opinion Score (MOS). The MOS provides a simple scalar value for QoE, but it has several limitations, some of which are made clear in its name: for many applications, just having a mean value is not sufficient. For service and content… 

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