Pre-training on ΛCDM power spectra accelerates inference for several beyond-ΛCDM models, but physical degeneracies like σ8–Mν cause negative transfer and require careful architecture choices.
Bayer , Arka Banerjee , and Uro s Seljak
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Transfer Learning Beyond the Standard Model
Pre-training on ΛCDM power spectra accelerates inference for several beyond-ΛCDM models, but physical degeneracies like σ8–Mν cause negative transfer and require careful architecture choices.