θMAP=argmaxθP(x∣θ)P(θ)=argmaxθ[logP(X∣θ)+logP(θ)]\theta_{MAP} = argmax_{\theta} P(x|\theta)P(\theta) = argmax_\theta [\log P(X|\theta) + \log P(\theta)]θMAP=argmaxθP(x∣θ)P(θ)=argmaxθ[logP(X∣θ)+logP(θ)]
=argmaxθlog∏iP(xi∣θ)+logP(θ)=argmaxθ∑ilogP(xi∣θ)+logP(θ)= argmax_{\theta} \log \prod_iP(x_i | \theta) + \log P(\theta) = argmax_{\theta} \sum_i\log P(x_i|\theta) + \log P(\theta)=argmaxθlog∏iP(xi∣θ)+logP(θ)=argmaxθ∑ilogP(xi∣θ)+logP(θ)