Surrogate for biphasic material simulation

[davide445]

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[ChrisRackauckas]

@davide445

My current doubts are

• what need I to use as true f function. So far I have split the data in two sets, using one every two timesteps for one or other set, and using one as f and the other as x
• what kind of surrogate need I to use for this kind of data

I’m not sure I get these quesitons?

Also, @StefanKarpinski or other mods, this looks like a misreport?