chance variable

英 [tʃɑːns ˈveəriəbl]

美 [tʃæns ˈveriəbl]

机遇变数

经济

英英释义

noun

• a variable quantity that is random
  Synonym:random variablevariatevariantstochastic variable

双语例句

• Based on the analysis of CLSC facility location problem, a fuzzy random Maximax chance constraint quadratic programming model is put forward. For one type of LR fuzzy random variable, the chance constraint programming model is transferred to a crisp one by using fuzzy and stochastic theories.
  通过闭环供应链设施选址问题的分析建立模糊随机Maximax机会约束二次规划模型，并针对一种特定的模糊随机变量运用模糊数学和随机理论等理论知识将其转换为等价的确定型模型。
• Finally, we design some algorithms about fuzzy random simulations to compute the mean chance of fuzzy random event, find the optimistic value of a return function, and evaluate the expected value of a fuzzy random variable.
  最后我们设计了模糊随机模拟算法，用于计算模糊随机事件的平均机会，寻找收益函数的乐观值，以及估计模糊随机变量的期望值。
• These results showed that the recognition scores exceeded chance level in the closed-set test and were variable in the open-set test, ranging from the telephone use on one extreme to no recognition at all on the other extreme.
  全部患者封闭项列的正确识别率均大于机会水平，而开放项列识别表现不一。
• This is a chance variable, and is not convenient to use in practice.
  这是一个随机变量，在实际中不便使用。
• A stochastic scheduling model for hydrothermal power systems is presented based on fuzzy chance constrained programming, taking reservoir inflow and water level for a random variable.
  针对水火电力系统运行调度中所包含的不同种类的不确定量，提出了一种基于模糊随机机会约束规划的短期水火电力系统多目标优化调度模型。
• The minimal loss models of appointed chance value are researched as well as the maximal chance of appointed transportation loss, when transportation loss is fuzzy stochastic or stochastic fuzzy variable.
  当路段通行损耗率为模糊随机变量或随机模糊变量时，单梯队在给定机会度下的最小损耗路径问题和给定损耗率指标的最大机会度路径优化模型。
• Chance Constrained Programming was used to deal with the chance variable, and improved particle swarm optimization was employed to solve the model.
  运用机会约束规划处理模型中的随机变量，采用改进粒子群算法求解模型。