17. The non-transitory computer-readable medium of claim 16 , wherein the instructions further comprise: receiving data indicative of actual ranking of parameters of a plurality of content items; and training the statistical model using the data.
17. The non-transitory computer-readable medium of claim 16 , wherein the instructions further comprise: receiving data indicative of actual ranking of parameters of a plurality of content items; and training the statistical model using the data. 18. The non-transitory computer-readable medium of claim 17 , wherein the training is based on at least one of a logistic regression method, a linear regression method, or a Naive Bayes method.