342 ◾ Kweku-Muata Osei-Bryson
So what do DM practitioners do in practice? Experiment with multiple algo-
rithms and parameter settings. is reality has been recognized by commercial DM
software vendors. So, for example, Classication and Regression Trees (CART)
software of both SAS Enterprise Miner and Salford Systems include multiple split-
ting methods and other options. Further CART provides the battery facility, which
allows for the simultaneous selection of multiple settings for several parameters, fol-
lowed by the automatic execution of multiple parameter combinations. Obviously,
this approach would be more computationally costly than if a single classier was
built using a single combination of the parameters’ options. e additional compu ...