Therefore, we also minimize: 2.4 Inference The true claim, y m , is a latent variable that is unknown in our problem, so we solve this ap-proximately by using the EM algorithm (Dempster et al., 1977) to first estimate the true claim, then find the maximum a posterior point estimate of the parameters.
the E-step is ∀m: v∈m P (y m = v|X, θ t ) (10) In the M-step, besides maximizing the posterior of parameters, we should also consider the interactions between H s and R s , Q s .