In the proposed method, the speciation strategy is used to form stable niches and these niches/subpopulations are optimized to search and maintain Pareto-optimal solutions in parallel. Moreover, a self-organized mechanism is proposed to improve the efficiency of the species formulation as well as the performance of the algorithm. To maintain the diversity of the solutions in both the decision and objective spaces, SS-MOPSO is incorporated with the non-dominated sorting scheme and special crowding distance techniques. The performance of SS-MOPSO is compared with a number of the state-of-the-art multi-objective optimization algorithms on fourteen test problems. Moreover, the proposed SS-MOSPO is also employed to solve a real-life problem.

Filename	Size	Update
SSMOPSO CODE	0	2020-04-20
SSMOPSO CODE\Indicator_calculation	0	2020-04-03
SSMOPSO CODE\Indicator_calculation\CR_calculation.m	1395	2017-10-08
SSMOPSO CODE\Indicator_calculation\Hypervolume_calculation.m	918	2017-10-08
SSMOPSO CODE\Indicator_calculation\IGD_calculation.m	1021	2017-10-08
SSMOPSO CODE\MM_testfunctions	0	2020-04-03
SSMOPSO CODE\MM_testfunctions\TruePSPFdata	0	2020-04-03
SSMOPSO CODE\MM_testfunctions\TruePSPFdata\MMF1truePSPF.mat	6191	2016-11-16
SSMOPSO CODE\MM_testfunctions\TruePSPFdata\MMF2truePSPF.mat	6470	2016-11-16
SSMOPSO CODE\MM_testfunctions\TruePSPFdata\MMF3truePSPF.mat	6285	2016-11-16
SSMOPSO CODE\MM_testfunctions\TruePSPFdata\MMF4truePSPF.mat	5468	2017-03-08
SSMOPSO CODE\MM_testfunctions\TruePSPFdata\MMF5truePSPF.mat	8304	2017-06-10
SSMOPSO CODE\MM_testfunctions\TruePSPFdata\MMF6truePSPF.mat	8313	2017-06-10
SSMOPSO CODE\MM_testfunctions\TruePSPFdata\MMF7truePSPF.mat	9392	2017-06-10
SSMOPSO CODE\MM_testfunctions\TruePSPFdata\MMF8truePSPF.mat	8230	2017-06-10
SSMOPSO CODE\MM_testfunctions\TruePSPFdata\Omni_test4.mat	6028	2018-09-12
SSMOPSO CODE\MM_testfunctions\TruePSPFdata\Omni_test5truePSPF.mat	7702	2018-09-08
SSMOPSO CODE\MM_testfunctions\TruePSPFdata\Omni_testtruePSPF.mat	5625	2017-05-06
SSMOPSO CODE\MM_testfunctions\TruePSPFdata\Omni_testtruePSPF3.mat	5394	2018-10-29
SSMOPSO CODE\MM_testfunctions\TruePSPFdata\SYM_PART3.mat	5648	2018-09-08
SSMOPSO CODE\MM_testfunctions\TruePSPFdata\SYM_PART_rotatedtruePSPF.mat	3516	2017-05-06
SSMOPSO CODE\MM_testfunctions\TruePSPFdata\SYM_PART_simple_turePSPF.mat	1447	2017-05-06
SSMOPSO CODE\MM_testfunctions\functions	0	2020-04-03
SSMOPSO CODE\MM_testfunctions\functions\MMF1.m	201	2017-09-21
SSMOPSO CODE\MM_testfunctions\functions\MMF2.m	239	2017-09-21
SSMOPSO CODE\MM_testfunctions\functions\MMF3.m	1017	2017-10-08
SSMOPSO CODE\MM_testfunctions\functions\MMF4.m	209	2017-10-08
SSMOPSO CODE\MM_testfunctions\functions\MMF5.m	257	2017-09-21
SSMOPSO CODE\MM_testfunctions\functions\MMF6.m	1318	2017-09-21
SSMOPSO CODE\MM_testfunctions\functions\MMF7.m	272	2017-09-21
SSMOPSO CODE\MM_testfunctions\functions\MMF8.m	278	2017-09-21
SSMOPSO CODE\MM_testfunctions\functions\Omni_test.m	427	2017-10-08
SSMOPSO CODE\MM_testfunctions\functions\SYM_PART3.m	1572	2018-09-08
SSMOPSO CODE\MM_testfunctions\functions\SYM_PART_rotated.m	704	2017-10-08
SSMOPSO CODE\MM_testfunctions\functions\SYM_PART_simple.m	620	2017-10-08
SSMOPSO CODE\SSMOPSO.m	12351	2020-04-20
SSMOPSO CODE\main.m	4488	2020-04-20

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