ConceptGaussian Scale Mixture / GSM
Gaussian Scale Mixture
A statistical modeling approach that represents heavy-tailed distributions as a Gaussian variable multiplied by a non-negative scale random variable. It can express heavy-tailed distributions such as stable distributions and Student's t-distributions.
Timeline (last 90 days)
Oct 15
ALD uses a marginal preferential decomposition, expressing stable noise in the form of a scalar Gaussian scale mixture, so that the training objective returns to the standard Gaussian noise prediction loss, requiring only one additional scalar scale input.
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