The mathematical study of strategies for optimal decision-making between options involving different risks or expectations of gain or loss depending on the outcome.
https://www.wikiwand.com/en/Decision_theory
See minimax_and_bayes_estimator.pdf for a description of the formalism decision theory under uncertainty (using the framework Parametric statistical inference as the setting). This also defines the useful concepts of a
See also Machine learning, and Reinforcement learning
Utility functions in Graphical models
Value of perfect information. The value of making observations/gaining information before making decisions.
very much connected with decision theory