expected value
- n. 期望值：随机变量的每个取值乘以其出现概率后的总和，或者是连续随机变量的概率密度函数与随机变量本身的乘积在所有可能取值上的积分。
网络释义专业释义英英释义
expected value [数] 期望值 ; 期望价值 ; [会计] 预期值
Expected value of perfect information 完全信息的预期价值 ; 完全情报期望值 ; 完整资讯的期望值
the expected value 期望值 ; 预期值
normal expected value 标准预测值 ; 标准猜测值
expected value theory 期望值理论 ; 期望价值理论
expected value vector 期望值向量
expected value model 期望值选择模型 ; 期望值模型
expected value criterion 期望值准则 ; 期望值判据
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预期值 - 引用次数：1 参考来源 - 我国通货膨胀预期的估计shaley值期待值
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期望值 - 引用次数：15
In this thesis, Binary PSO has been analyzed through bit change rate, velocity expected value and genetic algorithm pattern theory.
本文从位改变率、速度的期望值及遗传算法模式概念等三个方面对其进行分析。 本文得到:二进制PSO算法不收敛于群体最优粒子,其位值随着迭代运行而越来越随机。
参考来源 - 粒子群算法的基本理论及其改进研究 -
指望值希望值期望值
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指望值期望价值期待值预期值
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期望值
·2,447,543篇论文数据，部分数据来源于NoteExpress
expected value
- n. the sum of the values of a random variable divided by the number of values
以上来源于: WordNet
柯林斯英汉双解大词典
expected value
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1.
N the sum or integral of all possible values of a random variable, or any given function of it, multiplied by the respective probabilities of the values of the variable. Symbol: E(X). E(X) is the mean of the distribution; E(X–c) = E(X)–c where c is a constant 数学期望值 (Also called mathematical expectation) [statistics]
双语例句原声例句权威例句
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Although unwieldy, this does correctly match the predicate on the server and return the expected value.
虽然有些笨拙，但是这的确能正确地匹配服务器上的谓词，并返回预期的值。
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The higher the expected value of the reward, the higher the satisfaction;
预期回报价值越高，满意度就越高；
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Since the expected value at the selected path in the filter condition is only decided during execution, it needs to be defined as a variable.
由于过滤条件中选定的路径上的预期值是在执行时才确定的，因此需要将它定义为一个变量。
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Another important concept in probability theory that we will use a lot is expected value, the mean, or average-- those are all roughly interchangeable concepts.
概率论中另外一个常用的重要的概念是,期望值或者也叫均值,这两个概念可以互换
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The basic definition-- the expected value of some random variable x--E--I guess I should have said that a random variable is a quantity that takes on value.
最基本的定义,某一个随机变量X的期望值E,我应该提到过,随机变量是一个可以取值的数
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