Multi-Episodic Perceived Quality of an Audio-on-Demand Service

Long-Term Video QoE Assessment Studies: A Systematic Review

“…1) The first step of the search protocol was to check several preliminary queries in three different databases (IEEE, ACM and Scopus) and to review a number of the resulting papers. To develop the queries, we analysed whether given keywords allow to deliver 18 target papers, selected based on prior knowledge of the field [1], [2], [3], [4], [5], [7], [8], [9], [24], [25], [26], [27], [28], [33], [34], [35], [38], [41]. We will call those 18 papers ''Related''.…”

“…Paper [35] presents two studies. In both performance levels were manipulated daywise (High Performance (HP) or Low Performance (LP)).…”

“…Studies [38], [39], [41] offered compensation in a form of a gift voucher (worth 10 Euro). Study [35] offered 40 Euro participation fee and study [34] 70 Euro participation fee.…”

“…The studies presented in all analyzed papers, except five ( [32], [33], [34], [35], [36]) collected technical data from participants. Data can be divided into 4 categories: networkrelated (e.g., data throughput or video packet loss rate), activity-related (e.g., name of the opened app or screen orientation), cell-related (e.g., signal strength or operator) and context-related (e.g., GPS location or brightness).…”

“…The study described in [40] was assessing only perceived distorting and the loading speed, also using a 5-level subjective quality scale, and used a diary as well, to give a possibility for additional feedback. Paper [35] described 2 different experiments, in both of them the participants assessed the episodic perceived quality on the 7-point scale after finishing an episode. In the first one, the multi-episodic perceived quality for each service was assessed on the 4th, 7th, 10th, and 14th day directly after finishing the daily episode with the VoD service (same scale).…”