961
个编辑
更改
跳到导航
跳到搜索
第88行：
第88行： − − The probabilistic interpretation or catastrophe principle. − − 概率解释或突变原理。 − − 第99行：
第93行： − 整条实线上的分布 f 是次指数，如果分布是次指数的话+ 第144行：
第138行： − −
→Definition of long-tailed distribution 长尾分布的定义
=== Definition of long-tailed distribution 长尾分布的定义 ===
=== Definition of long-tailed distribution 长尾分布的定义 ===
The distribution of a [[random variable]] ''X'' with [[cumulative distribution function|distribution function]] ''F'' is said to have a long right tail<ref name="Asmussen"/> if for all ''t'' > 0,
The distribution of a [[random variable]] ''X'' with [[cumulative distribution function|distribution function]] ''F'' is said to have a long right tail<ref name="Asmussen"/> if for all ''t'' > 0,
A distribution F on the whole real line is subexponential if the distribution
A distribution F on the whole real line is subexponential if the distribution
如果对于所有t>0，具有分布函数F的随机变量X的分布被称为具有较长的右尾，
All long-tailed distributions are heavy-tailed, but the converse is false, and it is possible to construct heavy-tailed distributions that are not long-tailed.
All long-tailed distributions are heavy-tailed, but the converse is false, and it is possible to construct heavy-tailed distributions that are not long-tailed.
=== Subexponential distributions 长尾分布的定义 ===
=== Subexponential distributions 长尾分布的定义 ===