The continuous ion exchange process was analysed through the concept of probability density and conversion distribution function. 引用概率密度的概念,即转化率分布密度函数对连续离子交换过程进行分析。
There are two forms for describe the random variable: continuous functions such as probability density function, and statistics features such as mean and variance. 描述随机量有两种形式;一是连续性函数,如概率分布函数;二是统计量,如均值,均方差等。
In continuous random problems, the random variable has been fully described by the probability density function, but it is not an easy task to get the accurate probability density function. 在连续型随机问题中,概率密度函数完全刻画了随机变量,但要得到准确的概率密度函数不是一件容易的事。
A subspace skyline query method on vertical divide uncertain data stream modeling by continuous probability density function ( SSVUCpdf) is proposed to solve the problem of multi-user skyline query. 针对不确定数据流上的多用户Skyline查询问题,提出了基于垂直分割的连续概率密度函数建模的不确定数据流分布式子空间Skyline查询方法SSVUCpdf。