Decision Rules
A decision rule makes a choice using an optimality criterion. Some commonly used criteria are:
- Minimax: Choose the decision rule with the lowest worst loss — that is, minimize the worst-case (maximum possible) loss:
- Invariance: Choose the optimal decision rule which satisfies an invariance requirement.
- Choose the decision rule with the lowest average loss (i.e. minimize the expected value of the loss function):
Read more about this topic: Loss Function
Famous quotes containing the words decision and/or rules:
“How could a man be satisfied with a decision between such alternatives and under such circumstances? No more than he can be satisfied with his hat, which he’s chosen from among such shapes as the resources of the age offer him, wearing it at best with a resignation which is chiefly supported by comparison.”
—George Eliot [Mary Ann (or Marian)
“The values by which we are to survive are not rules for just and unjust conduct, but are those deeper illuminations in whose light justice and injustice, good and evil, means and ends are seen in fearful sharpness of outline.”
—Jacob Bronowski (1908–1974)