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>> No.15272670 [View]
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15272670

in diffusion models, [math]\mathcal{N}(\mu_t = \sqrt{1 - \beta_t}x_{t-1}, \Sigma_t = \beta_t I)[/math]
what is the purpose of $\beta_t$? why not just set the mean to [math]x_{t-1}[/math] and the stddev to the identity?

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