Recent advances in Meta-model of Optimal Prognosis
This addresses the need for faster simulation exploration in engineering applications where physical models are too slow, though it appears incremental as it builds on existing meta-model techniques.
The paper tackles the problem of selecting optimal surrogate models for computationally expensive simulations in virtual prototyping, presenting an automatic approach that combines meta-model selection with variable space reduction to enable efficient approximations for high-dimensional problems.
In real case applications within the virtual prototyping process, it is not always possible to reduce the complexity of the physical models and to obtain numerical models which can be solved quickly. Usually, every single numerical simulation takes hours or even days. Although the progresses in numerical methods and high performance computing, in such cases, it is not possible to explore various model configurations, hence efficient surrogate models are required. Generally the available meta-model techniques show several advantages and disadvantages depending on the investigated problem. In this paper we present an automatic approach for the selection of the optimal suitable meta-model for the actual problem. Together with an automatic reduction of the variable space using advanced filter techniques an efficient approximation is enabled also for high dimensional problems.