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MaximeVH / EquivalentCircuits.jl

A julia package to either fit the parameters of a specified equivalent electrical circuit to electrochemical impedance data, or to suggest a plausible circuit configuration for a given set of measurements (either through a comparison of circuits from the literature, or through an evolutionary algorithm approach).
MIT License
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Extract the estimated circuit parameters directly from the evolution elite #36

Closed RunzeZhang123 closed 3 months ago

RunzeZhang123 commented 4 months ago

Hey Maxime,

We noticed that when outputting the elite from the evolution process, you used parameteroptimisation to refit the best candidate. Could you please explain why that is necessary? In my opinion, the refit process may alter the circuit fitness to make it not the most competitive one anymore because of the multi-linear fit algorithms' stochastic behavior. Would it be better to just use the parameters estimated during the evolutionary process? EquivalentCircuit(best_circuit,parameteroptimisation(best_circuit,measurements,frequencies))

Thanks!

MaximeVH commented 4 months ago

Hey Runze,

My reasoning was that the parameters estimated during the evolutionary process deal with a trade-off between not taking too long and getting a good fit. The optimisation in the parameter optimisation function does a more thorough optimisation, which takes more time. I expected it to slightly further improve the fit of the final circuit, though this may not always be the case.

MaximeVH commented 3 months ago

I removed the finetuning step, such that the parameters obtained through GEP are returned