“…Table XII also shows the different types of datasets used in 21 studies and none was found to be exactly the same. Some of the methods observed to have been applied in creating and using the datasets include building personal datasets [129,134,172,173,203,208,222,224,232,239], using a representative dataset on a specific problem [133,147,200,204,155,161], and applying several representative datasets [137,139,158,211,236]. The difference in the modes of creating and using these datasets is reasonable due to the variations in the specific issues focused on in each of those studies.…”