Case Study:  Spam Prediction

      Modeling Techniques
               - Gains#: Semi-adaptive logistic using 23 variables selected from a forward stagewise selection
               - Gains#: Adaptive logistic using the 23 selected variables selected from a forward stagewise selection
               - Linear logistic regression model using 23 selected variables
               - Linear discriminant analysis using the 23 selected variables
               - K-nearest-neighbor classifier with K=5 using 23 selected variables
               - CART tree with 21 nodes, using the Gini index for splitting
               - MARS model with all 57 variables as inputs.  MARS selected 22 direct (32 terms total)
               - A feed-forward, MLP Neural Network with one hidden layer consisting of 10 neurons