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characteristic function

美 /ˌkærəktəˈrɪstɪk ˈfʌŋkʃn/
  • 特征函数：指在数学中，用来描述一个随机变量的性质的函数。

双语例句

  1. Abstract: in this paper, basis on the distribution of non - broken filament length of cocoon, we gave the characteristic function, and discussed on its application.
    文摘：在前文已经给出的连续型解舒丝长分布的基础上，给出解舒丝长的特征函数，讨论其应用的问题。
  2. Characteristic function is used for color classification, which can reduce the operation of color coordinate conversion and improve the speed of color classification.
    颜色分类处理使用特征函数，可以减少颜色坐标转换运算，提高颜色分类速度。
  3. The uniform differentiability of characteristic function and conditional characteristic function and reversion formula of conditional eigenfunction are obtained in this paper.
    得到了特征函数、条件特征函数的一致可微性和条件特征函数的反演公式。

网络短语

  • item characteristic function
    项目特征函数
  • test characteristic function
    测验特征函数
  • point characteristic function
    点特征函数
  • limiting characteristic function
    有限特性函数
  • empirical characteristic function
    实证特征函数；经验特征函数

同义词

eigenfunctionfundamental function
[数][物]特征函数

英英释义

  • In the field of mathematics known as convex analysis, the characteristic function of a set is a convex function that indicates the membership (or non-membership) of a given element in that set. It is similar to the usual indicator function, and one can freely convert between the two, but the characteristic function as defined below is better-suited to the methods of convex analysis.