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MARS: Meta-Learning as Score Matching in the Function Space. (arXiv:2210.13319v1 [cs.LG])
Oct. 25, 2022, 1:14 a.m. | Krunoslav Lehman Pavasovic, Jonas Rothfuss, Andreas Krause
stat.ML updates on arXiv.org arxiv.org
Meta-learning aims to extract useful inductive biases from a set of related
datasets. In Bayesian meta-learning, this is typically achieved by constructing
a prior distribution over neural network parameters. However, specifying
families of computationally viable prior distributions over the
high-dimensional neural network parameters is difficult. As a result, existing
approaches resort to meta-learning restrictive diagonal Gaussian priors,
severely limiting their expressiveness and performance. To circumvent these
issues, we approach meta-learning through the lens of functional Bayesian
neural network inference, which …
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