A directed acyclic graph of decision rules generated by a statistically-based supervised learning technique or other automated procedure.

A decision by a group or person with executive powers. / (humorous) A decision that is made without input from others.

plural of decision stream

(sports) A decision about the conduct of a sporting event, usually one made by the coach regarding which players will start or will play, or which strategy will be employed, which is put off until the start of the game itself.

The process of economic agents aiming to maximise their objectives, by ensuring the marginal benefit of an action is equal to its marginal cost.