Towards Multi-level Optimization: Space-Mapping and Manifold-Mapping

Echeverria, D ; Tong, C

Lawrence Livermore National Laboratory

关键词: Optimization;    99 General And Miscellaneous//Mathematics, Computing, And Information Science;    Accuracy;    12 Management Of Radioactive Wastes, And Non-Radioactive Wastes From Nuclear Facilities;    Minimization;   

DOI  :  10.2172/900107
RP-ID  :  UCRL-TR-223288
RP-ID  :  W-7405-ENG-48
RP-ID  :  900107

美国|英语

来源: UNT Digital Library

【 摘 要 】

In this report we study space-mapping and manifold-mapping, two multi-level optimization techniques that aim at accelerating expensive optimization procedures with the aid of simple auxiliary models. Manifold-mapping improves in accuracy the solution given by space-mapping. In this report, the two mentioned techniques are basically described and then applied in the solving of two minimization problems. Several coarse models are tried, both from a two and a three level perspective. The results with these simple tests confirm the speed-up expected for the multi-level approach.