Low-rank weight factorization creates singular posteriors in Bayesian neural networks that scale as sqrt(r(m+n)) in complexity and use up to 33x fewer parameters than ensembles.
Prior: mixturep(w) = 0.5N(0,2.0 2) + 0.5N(0, e−6)
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Singular Bayesian Neural Networks
Low-rank weight factorization creates singular posteriors in Bayesian neural networks that scale as sqrt(r(m+n)) in complexity and use up to 33x fewer parameters than ensembles.