  This technical report formally defines the QoE metrics which are introduced
and discussed in the article "QoE Beyond the MOS: An In-Depth Look at QoE via
Better Metrics and their Relation to MOS" by Tobias Ho{\ss}feld, Poul E.
Heegaard, Martin Varela, Sebastian M\"oller, accepted for publication in the
Springer journal "Quality and User Experience". Matlab scripts for computing
the QoE metrics for given data sets are available in GitHub.
