Local optimization strategies to escape from poor local minima

Florian Bociort; Alexander Serebriakov; Joseph J. M. Braat

doi:10.1117/12.486470

23 December 2002 Local optimization strategies to escape from poor local minima

Florian Bociort, Alexander Serebriakov, Joseph J. M. Braat

Proceedings Volume 4832, International Optical Design Conference 2002; (2002) https://doi.org/10.1117/12.486470
Event: International Optical Design Conference 2002, 2002, Tucson, AZ, United States

Abstract

Three local optimization strategies to escape from a local minimum are discussed. The first strategy is to radically modify the error function. The old and new error function should both tend to zero for ideal systems but must differ sufficiently from another. The second strategy is to temporarily over-design the system, i.e. to make available for optimization more system parameters than a designer would normally use for the given aperture and field specifications. Finally, it is shown that, with a small enhancement of the local optimization algorithm, it is possible to move from one local minimum into a neighboring one by locating a saddle point between them.

Citation Download Citation

Florian Bociort, Alexander Serebriakov, and Joseph J. M. Braat "Local optimization strategies to escape from poor local minima", Proc. SPIE 4832, International Optical Design Conference 2002, (23 December 2002); https://doi.org/10.1117/12.486470

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