discussion

So you have your nifty numerical simulator that captures all the details of the complex device you want to model, everything! You got your digital twin, and for a while everything is OK.

There comes the day in which you want to use your simulator in ways that go beyond the constraints imposed by the physical world … well, isn’t that the reason why we build simulators?

One core idea of emulation is to represent the ensemble of outputs of a complicated simulator in a reduced basis. The battle-horse algorithm to do this is the famous PCA, a.k.a POD, a.k.a SVD, a.k.a EOF, a.k.a. EBD, a.k.a. KLD, a.k.a. …