Model | p(S(k, m)) | Parameters |
---|---|---|
Generalized Gaussian distribution | \(p(S(k, m)) \propto \exp \left( - \left( \frac{|S(k, m)|}{\alpha } \right) ^{\beta } \right)\) | H(k) |
Multivariate Laplace distribution | \(p\left( \textbf{S}(m) \right) \propto \exp \left( -\sqrt{\sum _{k}\left| \frac{S(k, m)}{\sigma }\right| ^{2}}\right)\) | H(k) |
Local Gaussian distribution based on NMF | \(p\left( S(k, m)\right) \propto \frac{1}{r(k, m)} \exp \left( -\frac{|S(k, m)|^2}{r(k, m)} \right)\) | H(k), a(c, m), b(c, k) |