Which one of the following criteria is not used for decision-making under uncertainty ?

Decision-making under pure uncertainty (where probabilities of states of nature are completely unknown) relies on non-probabilistic criteria such as Maximin (Wald), Maximax, Minimax Regret (Savage), Hurwicz, and Laplace. 'Minimize expected loss' (Expected Opportunity Loss) requires known probability distributions and is therefore a criterion for decision-making under risk.