Namespace: NReco.CF.Taste.Model
Assembly: NReco.Recommender (in NReco.Recommender.dll) Version: 1.0.0.0 (1.0.0.0)

Return Value

Type: Single For example, if the domain is movie ratings on a scale of 1 to 5, this should be 5. While a IRecommender may estimate a preference value above 5.0, it isn't "fair" to consider that the system is actually suggesting an impossible rating of, say, 5.4 stars. In practice the application would cap this estimate to 5.0. Since evaluators evaluate the difference between estimated and actual value, this at least prevents this effect from unfairly penalizing a IRecommender.