utility function

基本解釋

It is possibleto develop the theory of consumer choice without supposing that a utility function exists at all.
即便不假設效用作用的存在，發(fā)展出關于消費者的理論仍然是可能的。
In this type of learning, the goal is not to maximize a utility function, but simply to find similarities in the training data.
這類學習類型的目標不是讓效用函數最大化，而是找到訓練數據中的近似點。
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.
在一開始，決策制定者就擁有一種“效用函數”或“偏好排序”把所有結果集合從最喜歡的到最不喜歡的排列起來。

But it's not a complete theory until we specify the utility function.
但我們還未詳細分析效應函數,這還不是完整的理論
耶魯公開課 - 金融市場課程節(jié)選
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.
當然我們還會,在這門課上討論行為金融學,并且,我們會間或,討論到效用函數不總是正確的,人們希望最大化期望效用的觀點,也許并不是完全準確的
耶魯公開課 - 金融市場課程節(jié)選
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.
這種觀點是對于任何數量的貨幣,假設我得到x數量的貨幣,隨著貨幣的增加,邊際效用呈,向下凹進去的曲線
耶魯公開課 - 金融市場課程節(jié)選

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

效用函數
Risk is independent of the utility function and relates to preference.
風險是獨立于效用函數與偏好相聯系的一個概念。
綜合效用
A utility function is established to evaluate the transportation models.
在此基礎上建立了不同時間價值和旅行距離下旅客對三種運輸方式的綜合效用評價函數。
效益函數

效用函數
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數的QoS動態(tài)自配置方法。
效益函數
公用程式功能