utility function

基本解释

It is possibleto develop the theory of consumer choice without supposing that a utility function exists at all.
即便不假设效用作用的存在，发展出关于消费者的理论仍然是可能的。
In this type of learning, the goal is not to maximize a utility function, but simply to find similarities in the training data.
这类学习类型的目标不是让效用函数最大化，而是找到训练数据中的近似点。
At the outset, the decision-maker has a "utility function" or a "preference ordering" that ranks all sets of consequences from the most preferred to the least preferred.
在一开始，决策制定者就拥有一种“效用函数”或“偏好排序”把所有结果集合从最喜欢的到最不喜欢的排列起来。

But it's not a complete theory until we specify the utility function.
但我们还未详细分析效应函数,这还不是完整的理论
耶鲁公开课 - 金融市场课程节选
Of course, we will also be talking about behavioral finance in this course and we'll, at times, be saying that the utility function concept isn't always right-- the idea that people are actually maximizing expected utility might not be entirely accurate.
当然我们还会,在这门课上讨论行为金融学,并且,我们会间或,讨论到效用函数不总是正确的,人们希望最大化期望效用的观点,也许并不是完全准确的
耶鲁公开课 - 金融市场课程节选
The idea is that for any amount of money-- if this x is the amount of money that I receive-- utility as the function of the amount of money I receive is downwardly-concave.
这种观点是对于任何数量的货币,假设我得到x数量的货币,随着货币的增加,边际效用呈,向下凹进去的曲线
耶鲁公开课 - 金融市场课程节选

No matter what the platform, function and utility, more than pretty and slick, is what works for consumers.
FORBES: Connect

a function relating specific goods and services in an economy to individual preferences

效用函数
Risk is independent of the utility function and relates to preference.
风险是独立于效用函数与偏好相联系的一个概念。
综合效用
A utility function is established to evaluate the transportation models.
在此基础上建立了不同时间价值和旅行距离下旅客对三种运输方式的综合效用评价函数。
效益函数

效用函数
Lastly, we propose a QoS dynamic self-configuration method based on utility function.
最后,本文提出了基于效用函数的QoS动态自配置方法。
效益函数
公用程式功能