Multi-fidelity surrogate models combining dimensionality reduction and an intermediate surrogate in the reduced space allow a cost-effective emulation of simulators with functional outputs. The surrogate is an input–output mapping learned from a limited number of simulator evaluations. This computational efficiency makes surrogates commonly used for many-query tasks. Diverse methods for building them have been proposed in the literature, but they have only been partially compared.

中文翻译：

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具有功能输出的模拟器的多保真度代理调查：统一框架和基准测试


多保真度代理模型结合了降维和缩减空间中的中间代理，允许对具有功能输出的模拟器进行经济高效的仿真。代理项是从有限数量的模拟器评估中学习的输入-输出映射。这种计算效率使代理项通常用于多查询任务。文献中已经提出了构建它们的多种方法，但仅进行了部分比较。