First steps

What a surrogate model is, why engineers use one, and where it sits next to physical testing and simulation. No background needed.

• What a surrogate is: A fast, learned map from a design to its physics, from a few numbers to the full field.
• Where it fits: Tests validate simulations, simulations train the surrogate, the surrogate picks what to simulate next.
• A short history: Seventy years from response surfaces and kriging to neural fields on any geometry.