Table 6: Kruskal-Willis ranks for the proposed methods.

MethodsNumber of datasetsMean rank based on accuracy (Euclidean distance)Mean rank based on accuracy (the Manhattan distance)Mean rank based on accuracy (the Chebyshev distance)

SOM53.604.606.00
ESOM58.407.607.00
SOMPSO514.2014.4013.80
ESOMPSO515.8015.4015.20

Total20

𝑃 -value0.0040.0080.025