Biomedical Engineering Reference
In-Depth Information
Table 5.13
Statistical.Results.of.Binary.ε-Indicator.in.Terms.of.the.Number.of.Occurrences.in.
Three.Different.Cases.for.Constrained.Test.Functions
TestFunction
Case
MOGA
NPGA2
NSGA2
SPEA2
PAES
MICROGA
DEB
Case.I
1,476
1,679
841
724
2,470
1,984
Case.II
174
106
501
585
0
7
Case.III
850
715
1,158
1,191
30
509
BEL
Case.I
2,329
2,341
1,190
1,775
2,374
2,467
Case.II
1
0
39
0
0
7
Case.III
170
159
1,271
725
126
26
SRIN
Case.I
1,583
1,783
987
1,419
2,299
1,441
Case.II
471
338
703
465
97
552
Case.III
446
379
810
616
104
507
TAN
Case.I
180
169
302
156
2,047
528
Case.II
319
359
202
426
0
24
Case.III
2,001
1,972
1,996
1,918
453
1,948
BINH
Case.I
331
470
145
127
1,889
595
Case.II
0
0
76
15
0
0
Case.III
2,169
2,030
2,279
2,358
611
1,905
Source: . Data.from.Chan,.T..M.,.Man,.K..F.,.Kwong,.S.,.Tang,.K..S.,.A.jumping.gene.paradigm.for.
evolutionary.multiobjective.optimization,. IEEETransactionsonEvolutionaryComputation ,.
12(2),.143-159,.2008.
Note: . The.best.result.for.each.case.is.marked.in.bold.
provide.sufficient.diversity.to.prevent.trapping.in.some.local.Pareto-optimal.
fronts.. In. the. constrained. test. functions,. the. JG. also. outperformed. other.
MOEAs.in.DEB,.BEL,.and.SRIN.
In.summary,.it.was.demonstrated.that.the.JG.had.a.powerful.and.effective.
search.ability.to.seek.better.sets.of.nondominated.solutions.with.good.con-
vergence.and.diversity.performance..For.demonstration,.typical.sample.sets.
of.nondominated.solutions.found.by.different.MOEAs.for.the.unconstrained.
and.constrained.test.functions.are.shown.in . Figures 5.2 - 5.4.
The. nondominated. solution. sets. for. the. test. functions. ZIT1,. ZIT2,. ZIT3,.
ZIT4,. and. ZIT6. (both. binary. and. real-number. coding). obtained. by. a.
MICROGA.(microgenetic.algorithm).were.not.included.since.they.were.too.
far.away.from.the.true.Pareto-optimal.front.
5.7.3 an experimental Test of Theorems of equilibrium
As. indicated. by. the. two. theorems. of. equilibrium. given. in. Section. 4.3,. the.
element.in.a.primary.schema.competition.set. S ξ .of.order. o (ξ) =  n .will.glob-
ally.asymptotically.converge.to. n
1/2 .under.copy-and-paste.or.cut-and-paste.
operations,.despite.the.initial.proportion.of.the.schemata.in.the.set.
In. theory,. this. effect. can. be. visualized. by. monitoring. the. proportions.
of.schemata..However,.due.to.the.huge.number.of.schemata.in.a.practical.
 
 
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