utility function
noun [ C ] science, social science specialized uk/juːˈtɪl.ə.ti ˌfʌŋk.ʃən/ us/juːˈtɪl.ə.t̬i ˌfʌŋk.ʃən/
效用函数
a mathematical function (= a quantity whose value depends on another value and changes with it) in which different choices are ranked (= put in order) according to how useful they are
The algorithm has to choose an action whose consequences match the goal. Or choose the action whose probabilistic consequences rank highest in the utility function. 该算法必须选择一个其后果与目标相匹配的行动。或者选择其概率后果在效用函数中排名最高的行动。
- More examples
- There's no reason to assume that an AI system will have a utility function over states/snapshots.
- Simple utility functions seem particularly likely to lead to goal-directed behaviour.
- Does utilitarianism say that virtuous actions always correspond to maximizing expected utility under some utility function?
- We can't just give a program a static utility function, because circumstances, and our responses to circumstances, change over time.