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Improved ant colony optimization algorithms for continuous ... - CoDE

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2.2 Further Investigation on ACOR<br />

Solution value<br />

Solution value<br />

Solution value<br />

1e−02<br />

1e−08<br />

1e−14<br />

1e−20<br />

1e−26<br />

1000<br />

500<br />

200<br />

100<br />

20.0<br />

10.0<br />

5.0<br />

2.0<br />

1.0<br />

0.5<br />

<strong>ant</strong>2−q00001−k100<br />

<strong>ant</strong>2−q00001−k100<br />

<strong>ant</strong>2−q00001−k100<br />

sphere−100 dimensions<br />

<strong>ant</strong>2−q00001−k50<br />

<strong>ant</strong>2−q00001−k50<br />

<strong>ant</strong>2−q01−k100<br />

rastrigin−100 dimensions<br />

<strong>ant</strong>2−q01−k100<br />

salomon−100 dimensions<br />

<strong>ant</strong>2−q00001−k50<br />

<strong>ant</strong>2−q01−k100<br />

<strong>ant</strong>2−q01−k50<br />

<strong>ant</strong>2−q01−k50<br />

<strong>ant</strong>2−q01−k50<br />

Solution value<br />

Solution value<br />

1e−02<br />

1e−06<br />

1e−10<br />

1e−14<br />

1e+00<br />

1e−05<br />

1e−10<br />

1e−15<br />

1e−20<br />

1e+02<br />

1e+01<br />

1e+00<br />

1e−01<br />

1e−02<br />

<strong>ant</strong>2−q00001−k100<br />

<strong>ant</strong>2−q00001−k100<br />

<strong>ant</strong>2−q00001−k100<br />

ackley−100 dimensions<br />

<strong>ant</strong>2−q00001−k50<br />

<strong>ant</strong>2−q00001−k50<br />

<strong>ant</strong>2−q01−k100<br />

griewank−100 dimensions<br />

<strong>ant</strong>2−q00001−k50<br />

<strong>ant</strong>2−q01−k100<br />

<strong>ant</strong>2−q01−k100<br />

<strong>ant</strong>2−q01−k50<br />

<strong>ant</strong>2−q01−k50<br />

weierstrass−100 dimensions<br />

Figure 2.5: The box-plots show the solution quality after 1E+06 function<br />

evaluations <strong>for</strong> Sep-ACOR with different parameter configurations.<br />

Solution value<br />

<strong>ant</strong>2−q01−k50<br />

13

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