In feature selection, ________ follows forward selection by adding a variable at each stage, but also includes removing variables that no longer meet the threshold.
A) hold-out variation
B) stepwise selection
C) dummy coding
D) forward selection

Question

Quizplus · Accepted Answer

Stepwise selection is a method that starts with forward selection by adding variables one at a time based on a specified criterion, and then, at any step, can remove variables that do not meet the threshold anymore. This approach combines both forward selection and backward elimination techniques.

In Feature Selection, ________ Follows Forward Selection by Adding a Variable