1317

978-1-4244-1823-7/08/$25.00 c©2008 IEEE

( ) ( ) ( ) ( )( )( ) ( )( ) ( ) ( )( )−××+−××+

−××+×=+

( ) ( ) ( )++=+

( )

( )

( )

( )

( )

[ ]

( )=μ ( )σ

σ

σ

( )=

( ) ( )+=+

( ) ( )

[ ]>

≤

1318 2008 IEEE Congress on Evolutionary Computation (CEC 2008)

( ) ( )( )

( )( )−××=

( ) ( ) ( )

[ ] ( )

)

( )

Δ

( )=

( ) ( ) ( )×Δ+=

( ) ( ) ( )×Δ+=

( ) ( )= ≠≠=

( )=μ ( )σ

Δ

( )

Δ

( )

( )

Δ

( )( )

2008 IEEE Congress on Evolutionary Computation (CEC 2008) 1319

( ) ( )

( ) ( ) ( )×−=

( ) ( ) ( )

( )( )

( ) ( )××−=

( )

( )

( )

[ ]

( )−>− δ

( )−>− δ

δ

( )×δ

+=

+=

( )−≤−

( )−≤−

( )++=

( )+−=

=

1320 2008 IEEE Congress on Evolutionary Computation (CEC 2008)

==

= =

=δ

δδ

δ

Begin Parameters initialization /*Initialization Set swarm size Randomly generate one swarm Set Maximum iterations ( )

Set iteration = For each particle Fitness evaluation EndFor Cell-based rank & density estimation scheme Identify swarm leaders Update swarm local best archive Archive maintenance

= While < Objective space compression & expansion strategy Swarm growing strategy Swarm declining strategy For each swarm (%Exclude newly generated swarms) Flight EndFor For each particle Fitness evaluation EndFor Cell-based rank & density estimation scheme Identify swarm leaders Update swarm local best archive Archive maintenance += EndWhile Report results in archive End

2008 IEEE Congress on Evolutionary Computation (CEC 2008) 1321

± ± ± ± ± ±

± ± ± ± ± ±

± ± ± ± ±

± ± ± ± ±

± ± ± ± ± ±

± ± ± ± ± ±

± ± ± ± ± ±

± ± ± ± ± ±

± ± ± ± ± ±

± ± ± ± ± ±

1322 2008 IEEE Congress on Evolutionary Computation (CEC 2008)

± ± ± ± ±

± ± ± ± ±

± ± ± ± ±

± ± ± ± ±

± ± ± ± ±

± ± ± ± ±

± ± ± ± ±

± ± ± ± ±

± ± ± ± ±

± ± ± ± ±

± ± ± ± ± ±

± ± ± ± ± ±

± ± ± ± ± ±

± ± ± ± ± ±

± ± ± ± ± ±

± ± ± ± ± ±

± ± ± ± ± ±

± ± ± ± ± ±

± ± ± ± ± ±

± ± ± ± ± ±

2008 IEEE Congress on Evolutionary Computation (CEC 2008) 1323

δ

δ

± ± ± ± ± ± ±

± ± ± ± ± ± ±

± ± ± ± ± ± ±

± ± ± ± ± ± ±

± ± ± ± ± ± ±

± ± ± ± ± ± ±

± ± ± ± ± ± ±

± ± ± ± ± ± ±

± ± ± ± ± ± ±

± ± ± ± ± ± ±

± ± ± ± ± ±

± ± ± ± ± ±

± ± ± ± ± ±

± ± ± ± ± ±

± ± ± ± ± ±

± ± ± ± ± ±

± ± ± ± ± ±

± ± ± ± ± ±

± ± ± ± ± ±

± ± ± ± ± ±

1324 2008 IEEE Congress on Evolutionary Computation (CEC 2008)