when is gbp exact what is the difference between gbp and gbp what is the difference between gbp and gbp gbp definition what is the difference between gbp and gbp why is gbp exact? what is the difference between gbp and generalized belief propagation? what is the difference between gbp and gbp when is gbp exact when is gbp exact why is generalized belief propagation exact when is gbp solvable is gbp always exact when is gbp exact when is gbp exact does belief propagation work when is gbp exactly solvable when is gbp exact why is it important to use gbp in junction tree what is gbp