Architectural research

Architectural Institute of Korea (대한건축학회)
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The Effect of Rebirthing Technique on GA-based Size Optimization

  • LEE, Sang-Jin (Engineering Research Institute, Gyeongsang National University) ;
  • LEE, Hyeon-Jin (ADOPT Research Group, Department of Architectural Engineering, Gyeongsang National University)
  • Received : 2009.08.09
  • Published : 2009.12.30
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Abstract

The effect of rebirthing technique on the genetic algorithm (GA)-based size optimization is investigated. The GA mimics the principles of nature and it can gradually improve structural design through biological operations such as fitness, selection, crossover and mutation. However, premature optimum has been often detected in the generic GA with continuous design variable. Since then, the so-called rebirthing technique has been proposed to avoid this problem. However, the performance of the rebirthing technique has not been reported. Therefore, the size optimizations of spatial structures are tackled to investigate the performance of the rebirthing technique on the generic GA. From numerical results, it is well proved that the rebirthing technique is very effective to produce the optimum values regardless of the values of parameters used in the GA operations.

Keywords

References

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