13. An apparatus for generating a classifier model, the apparatus comprising: a memory device having executable instructions stored therein; and a processing device, in response to the executable instructions, operative to: define a plurality of predictive performance measures based on a leave one out (LOO) cross validation in terms of selectable model parameters; derive efficient analytical expressions by approximating one or more analytical expressions based on the plurality of predictive performance measures to compute a LOO predictive performance; select a classifier model based on the LOO predictive performance; and classify web content using the selected classifier model.
13. An apparatus for generating a classifier model, the apparatus comprising: a memory device having executable instructions stored therein; and a processing device, in response to the executable instructions, operative to: define a plurality of predictive performance measures based on a leave one out (LOO) cross validation in terms of selectable model parameters; derive efficient analytical expressions by approximating one or more analytical expressions based on the plurality of predictive performance measures to compute a LOO predictive performance; select a classifier model based on the LOO predictive performance; and classify web content using the selected classifier model. 16. The apparatus of claim 13 , the processing device, in response to executable instructions, is further operative to: prior to classifying the web content, access a training set having the web content therein.