A Multiobjective Brain Storm Optimization Algorithm Based on Decomposition

Table 3

IGD obtained by MBSO/D and MOHS/D on five ZDT problems and seven DTLZ problems.

Problems		IGD
		Best	Median	Worst
ZDT1	MBSO/D	1.62e-3	1.71e-3	2.04e-3
	MOHS/D	1.37e-3	1.86e-3	2.18e-3
ZDT2	MBSO/D	8.42e-4	1.02e-3	2.45e-3
	MOHS/D	2.26e-3	2.26e-3	3.01e-3
ZDT3	MBSO/D	6.14e-4	9.52e-4	1.26e-3
	MOHS/D	9.15e-4	1.19e-3	1.76e-3
ZDT4	MBSO/D	1.86e-4	1.62e-4	5.21e-3
	MOHS/D	1.76e-4	1.64e-4	4.23e-3
ZDT6	MBSO/D	1.62e-4	1.87e-4	3.41e-4
	MOHS/D	1.59e-4	1.91e-4	2.42e-4
DTLZ1	MBSO/D	1.77e-2	1.81e-2	1.92e-2
	MOHS/D	4.69e-03	1.28e-02	4.16e-2
DTLZ2	MBSO/D	5.12e-2	5.22e-2	5.44e-2
	MOHS/D	3.23e-3	4.08e-3	4.71e-3
DTLZ3	MBSO/D	6.13e-2	6.24e-2	8.26e-2
	MOHS/D	8.62e-2	1.33e-1	2.00e-1
DTLZ4	MBSO/D	6.23e-3	5.30e-2	5.74e-2
	MOHS/D	8.43e-3	9.76e-3	1.06e-2
DTLZ5	MBSO/D	5.49e-3	1.86e-2	2.61e-2
	MOHS/D	1.34e-3	1.40e-3	1.45e-3
DTLZ6	MBSO/D	1.57e-2	2.07e-2	2.51e-2
	MOHS/D	1.21e-2	2.21e-2	3.35e-2
DTLZ7	MBSO/D	6.25e-2	7.85e-2	9.21e-2
	MOHS/D	2.89e-2	3.00e-2	3.07e-2