An introduction to surrogate modeling: fundamentals

An introduction to surrogate modeling: fundamentals

A machine learning approach to accelerate engineering design. We will focus on the fundamentals of this method by going through the following aspects: Motivation: why do we need a method to accelerate computer simulations? Solution: how is surrogate modeling helping the situation? Details: how to actually apply surrogate modeling?

In engineering, product design relies heavily on a thorough analysis of the product performance under various design parameters. Those analyses are mostly carried out via high-fidelity, time-consuming computer simulations.

To push the product to the market faster, accelerating these simulation-based analyses is the key. Toward that end, a data-driven approach called surrogate modeling is gaining in popularity recently in various engineering domains.

In part I of this blog, we will focus on the fundamentals of this method by going through the following aspects:

  • Motivation: why do we need a method to accelerate computer simulations?
  • Solution: how is surrogate modeling helping the situation?
  • Details: how to actually apply surrogate modeling?

Key takeaways of part I are listed at the end of this article.

In part II, we will work through a case study to demonstrate the key steps in practical surrogate modeling.

In part III, we will briefly talk about some advanced concepts to further enhance surrogate modeling capability.

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