Results

Convergence comparison of parallel message passing, MAP with LBFGS, and INLA on a 200x200 grid. In the 500 observation case, INLA took 10 seconds, MAP 16 seconds, message passing 11 seconds.

Convergence comparison of different values of $c$ on a 500x500 grid.

Demo of MC variance estimate on a 200x200 grid with 1500 observations when we use 16 samples.

Demo of MC variance estimate on a 200x200 grid with 1500 observations when we use 512 samples.