Quality-of-experience optimization system, quality-of-experience optimization apparatus, recommend request apparatus, quality-of-experience optimization method, recommend request method, and program

2:

• A quality-of-experience optimization apparatus configured to optimize quality (QoE:
• Quality of Experience) that a user experiences in a content distribution service, comprising:
• a parameter input output unit configured to input a distribution parameter candidate for content distribution, and to output a recommend value for optimizing QoE;
• and
• an estimation value·recommend value calculation unit configured to estimate QoE based on the distribution parameter candidate input by the parameter input output unit, and to calculate a distribution parameter for optimizing the QoE as the recommend value.

3:

• The quality-of-experience optimization apparatus as claimed in claim 2, the estimation value·recommend value calculation unit including:
• a QoE estimation function unit configured to calculate QoE from information on coding of the distribution parameter candidate;
• a resolution·frame rate recommend function unit configured to calculate a resolution and a frame rate by which the QoE calculated by the QoE estimation unit becomes the largest;
• and
• an initial coding parameter recommend function unit configured to calculate a coding parameter by which an average QoE of the whole of content distribution target users becomes the largest.

5:

• A recommend request apparatus for optimizing QoE in a content distribution service, comprising:
• a distribution parameter output unit configured to output a distribution parameter candidate for content distribution, to a quality-of-experience optimization apparatus, in order to request a distribution parameter for optimizing QoE as a recommend value;
• and
• a recommend value reception unit configured to receive the recommend value from the quality-of-experience optimization apparatus.

6:

• A quality-of-experience optimization method, executed by a quality-of-experience optimization apparatus, for optimizing QoE in a content distribution service, comprising:
• a distribution parameter input step of inputting a distribution parameter candidate for content distribution;
• an estimation value·recommend value calculation step of estimating QoE based on the distribution parameter candidate input in the parameter input step, and calculating a distribution parameter for optimizing the QoE as the recommend value;
• and
• a recommend value output step of outputting the recommend value calculated in the estimation value·recommend value calculation step.

7:

• A recommend request method executed by a recommend request apparatus for optimizing QoE in a content distribution service, comprising:
• a distribution parameter output step of outputting a distribution parameter candidate for content distribution, to a quality-of-experience optimization apparatus, in order to request a distribution parameter for optimizing QoE as a recommend value;
• and
• a recommend value reception step of receiving the recommend value from the quality-of-experience optimization apparatus.