X - 東北大学

Bayesian Image Analysisby Gaussian Graphical ModelIteration Procedure of EM algorithm in Gaussian Graphical Model( ˆ, α ˆ) σ = arg max P(gσ = 40( α,σ )( α ( t + 1 ),σ ( t + 1))←argr−1xˆ( t)| α,σ)max( α , σ )(rQ α , σ α , y).() t , σ ( t)= ( I + α(t)σ ( t) 2 C)ryEMy rfˆry r14 January, 2010( )α t0.0010.00080.00060.00040.00020σ( t)0 20 40 60 80 100ˆ σ = 37.624ˆ α =0.000713Hokkaido University GCOE Tutorial(Sapporo) 45fˆr