A split-optimization approach for obtaining multiple solutions in single-objective process parameter optimization

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Table 11 Comparison of three splitting strategies

Name of splitting strategy	Hill and valley splitting	Cluster centers splitting					Equally splitting
Value of parameter	–	k = 2	k = 3	k = 4	k = 5	k = 6	4
No. of sub-spaces	24	12	12	18	36	48	64
No. of solutions	8	8	4	8	8	10	5
Percentage of useful sub-spaces	33.3 %	66.7 %	33.3 %	44.4 %	22.2 %	20.8 %	7.8 %