Predicting multimedia session MOS

A MOS, Mean Opinion Score, estimator for predicting a multimedia session MOS, wherein the multimedia comprises a video and an audio, wherein video quality is represented by a list of per time unit scores of a video quality and an initial buffering event and rebuffering events in the video and wherein audio quality is represented by a list of per time unit scores of audio quality, the MOS estimator comprising processing means and a memory comprising instructions which, when executed by the processing means, causes the MOS estimator to:

• generate video features from the input list of per time unit scores of the video quality;
• generate audio features from the input list of per time unit scores of the audio quality;
• generate buffering features from the initial buffering event and rebuffering events in the video;
• and
• estimate a multimedia session MOS from the generated video features, generated audio features and generated buffering features by using machine learning technique.

A non-transitory computer-readable storage medium comprising a computer program product including instructions to cause at least one processor to:

• generate video features from the input list of per time unit scores of the video quality;
• generate audio features from the input list of per time unit scores of the audio quality;
• generate buffering features from the initial buffering event and rebuffering events in the video;
• and
• estimate a multimedia session MOS, Mean Opinion Score, from the generated video features, generated audio features and generated buffering features by using machine learning technique.