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how to use a single Gaussian distribution to approximate mixture Gaussian distribution? #7

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ShellingFord221 opened this issue Nov 19, 2019 · 0 comments

ShellingFord221 commented Nov 19, 2019

Hi, in Class BayesianLinear, the weight is sampled from a unimodal Gaussian distribution

self.weight = Gaussian(self.weight_mu, self.weight_rho)

, and the prior of weight is sampled from a mixture Gaussian

self.weight_prior = ScaleMixtureGaussian(PI, SIGMA_1, SIGMA_2)

But is it possible to use a single Gaussian distribution to approximate mixture Gaussian distribution theoretically? It seems meaningless...

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