expected value

英 [ɪkˈspektɪd ˈvæljuː]

美 [ɪkˈspektɪd ˈvæljuː]

期望（预期）值

计算机化学

英英释义

noun

• the sum of the values of a random variable divided by the number of values
  Synonym:arithmetic meanfirst momentexpectation

双语例句

• You need some way of establishing the expected value for the decrypted message, for one thing.
  首先，您需要使用某种方法为解密消息确立预期值。
• Instead, treatments designed to modify the expected value of the drug or food type may prove more effective.
  相反，成瘾性的治疗旨在改变药物或食物种类预期价值的，也可能证明有更多有效性。
• A new method to count the expected value and variance of time dispersion is presented for time dispersion of underwater optical wireless communication.
  给出了一种计算水下无线光通信中时域展宽的均值和方差的新方法；
• The expected value itself very rarely can help us.
  期望值本身很难帮助我们。
• Besides, a set of survey data is analyzed in this method from the aspects of traditional "Expected Value Theory" and "Prospect Theory" correspondingly.
  从传统的期望效用理论和前景理论两个方面，对一份关于出行者路径选择的调查数据进行了分析；
• So perhaps you can steel yourself to follow decision theory and go for the higher expected value.
  因此，或许你可以让自己坚强起来，遵循决策论，追逐更高的预期价值。
• If the start of the banner matches the expected value, the resource is considered to be online.
  如果横幅的开头与期望值匹配，则认为该资源已联机。
• Expected value of a probability distribution
  一种概率分布的期望值
• The variance of a random variable measures how far from the expected value its values typically are.
  随机变量的方差衡量随机变量值与期望值偏离的程度。
• There are significant difference in Efficiency, Quality, Cost, Service value between expected value and perceived value.
  其中游客在游览前后对效率价值、质量价值、成本价值、服务价值的认知存在显著差异。