How frequently do you do a separate feature selection in classification (rather than have a learning algorithm do selection) [104 votes total]
Always (20)
19%
Most of the time (19)
18%
Frequently (35)
34%
Rarely (21)
20%
Never (9)
9%
Comments
Peter van der Putten (KiQ), manual AND automatic In almost all cases I do *both* manual and automatic selection, I think
this is quite common for commercial datamining.