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Prediction quality values

The "quality" value refers to the degree a user will like an item. The LikeMinds server presents predictions in decreasing order of quality.

Recommendation quality is calculated using this equation:

quality = confidencempowx (pred rating —mean pred rating) + K x confidencepow where:

To specify mpow, set db.applic.param.BestBets.MultPower:

db.applic.param.BestBets.MultPower = 0.5

To specify K, set db.applic.param.BestBests.Coefficient:

db.applic.param.BestBets.Coefficient = 0

To specify pow, set db.applic.param.BestBets.Power:

db.applic.param.BestBets.Power = 1.0

You can use these parameters for all of the Recommendation engines except for the Item Affinity Engine.


Parent topic:

Specifying recommendation behavior