负相协和负象限相依关系的研究

A Study on The Relation between Minus Concordance and Quadrant Dependence

在可靠性中,可以利用随机变量之间的相协关系来刻画随机变量之间的相依性,但相协的概念并不完善,针对这个问题,提出了负相协的定义,给出了负相协的性质,最后对负相协和负象限两种相依关系进行了研究.

The dependence between random variables is based on the relationship between concordances of random variables,which only weighs under the condition that the covariance of two random variables is larger or equal to zero. In that case this article brings forward the definition of minus concordance, and gets a series of theory and conclusion about minus concordance through further study.