Given four - dimensional samples where the fi rst two dimensions are numeric and the last two are categorical (a) Apply a method for unsupervised feature selection based on entropy measure to reduce...

Given four - dimensional samples where the fi rst two dimensions are numeric and the last two are categorical

(a) Apply a method for unsupervised feature selection based on entropy measure to reduce one dimension from the given data set.

(b) Apply Relief algorithm under the assumption that X4 is output (classification) feature.