查询词典 probability density function

The statistical simulation analysis method is effective to deal with space- time heterogeneity of earthquakes and risk regions, after 105 count of the va lues of simulating random prediction probability have been got, the objective result s have been got by comparing between the simulation prediction average probabili ty and the practice prediction average probability.

由于统计模拟的方法有效地处理了地震和危险区的时空不均匀性，并且得到经运算105次的统计模拟随机预报概率，将其与实际预报平均概率比较，得到较为客观的结果。

Suppose is two-dimension random variable, call the probability distribution of measure X marginal distribution on X for ; the probability distribution of measure Y

Definition 2.10 设是二维随机变量，称分量的概率分布为关于的边缘分布；分量的概率分布为关于的边缘分布。

Suppose is two-dimension random variable, call the probability distribution of measuremarginal distribution on for ; the probability distribution of measure Y marginal distribution on Y for .

Definition 3.6 设是二维随机变量，称分量的概率分布为关于的边缘分布；分量的概率分布为关于的边缘分布。

Suppose is two-dimension random variable, call the probability distribution of measure X marginal distribution on X for ; the probability distribution of measure Y marginal distribution on Y for .

Definition 设是二维随机变量，称分量的概率分布为关于的边缘分布；分量的概率分布为关于的边缘分布。

After the discussion of the static Markoff chain model,the dissertation establishs a normal set called Stat Model, which can be used to calculate a support probability of the experimental data sequence.The probability is a standard which is used to determine the existence of the abnormal behavior.Then an abnomal detection method based on the static Markoff chain model is discussed, and a detection arithmetic is brought forward, the results of experiment is given.

本文利用马尔可夫模型建立一个正常集，也就是统计模型，通过计算该模型对一个实际观测序列的支持概率来判断是否存在异常行为，并给出基于静态马尔可夫链的检测算法及其修正算法，最后给出实验结果。

This paper, the future market conditions as a random event, according to the probability of higher mathematics in the theory of the future market and the level of information, analysis and evaluation of mathematical expectation of random variable as a random variable reflects the average level, it is important to the probability of random variable characteristics.

本文把未来市场状况作为随机事件，依据高等数学中的概率理论，对未来市场和信息的水平作出分析和评价，由于随机变量的数学期望体现了随机变量的平均水平，它是随机变量的重要概率特征。

The small probability event principle is an elementary theory,which usually is applied in probability theory and mathematical statistics.

小概率原理是概率论与数理统计中的一个具有实际应用意义的基本理论。

Based on the guess probability and the misplay probability in the knowledge space theory, a new model is proposed which could effectively diagnose the knowledge states of students in that case.

本文提出了一种知识空间理论中基于猜测概率和失误概率的学习诊断模型，当受测者出现猜测或失误时，该模型仍可对受测者的知识状态进行有效的诊断。

This paper proposes the logistic default probability measure model which is based on the factor analysis , in the light of the problem of missing original data 、multicollinearity and without time consideration in the general Logistic probability of default model.

本文针对一般Logistic 违约率模型中原始数据信息的丢失、多重共线性以及没有考虑时间因素等问题，提出了基于因子分析的logistic违约概率测算模型。

Based on this, a combined method of simulation is dedicated as a basic tool for the probability analysis of Runyang bridge. The combined simulation method transfers the original complex question of probability analysis into the solution of a series of multinomial, making the efficiency improved significantly so that the precision of analysis is also increased greatly.

联合算法的应用，将大跨桥梁可靠度分析这样一个具有复杂物理意义的问题转化为一系列失效方程式的求解问题，提高了求解的效率，而求解效率的提高同时也保证了分析的精度。

Don not attempt to do something which you can not to do.

不要企图做那些办不到的事情。

The expression of CTGF and TNF-αweredetected by immunochemistry and the number of Clara Cells was calculated.

光镜下观察肺组织的病理变化，采用免疫组化染色观察肺组织中结缔组织生长因子和肿瘤坏死因子-α的表达和Clara细胞的数量。