prior probability

prior probability的基本解释

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[化] 先验概率

与prior probability相关的网络例句 [注：此内容来源于网络，仅供参考]

Then we introduced transition probability kernel for the hidden state process and the confederated process. In the deep research, we found that some similar parameters of state transition probability, observation symbol probability and initial state probability were involved in the transition probability kernel of the confederated process. So we can complete the training of traditional HMM parameters by training the transition probability kernel of the confederated process. To our surprised, we got the consistency of transition probability kernel of the confederated process. Meanwhile, we proved the rationality and reliability of the parameters estimation equations under the classical B-W algorithm.

然后对联合过程的转移概率核展开研究，我们根据过程的取值空间的不同，引入了隐状态空间和联合过程空间上的转移概率核，研究中发现在联合空间上的转移概率核包含了在一般的隐马氏模型的参数估计中的所有类似的三组参数(转移概率，观测概率和初始概率)，因此对传统的隐马氏模型的参数训练我们可以通过联合过程的转移概率核的训练来完成，更令我们惊奇的是联合过程的转移概率核还具有一致性；同时对于Baum提出的经典的B-W算法给出的关于模型的参数重估计公式，证明了它的合理性和可靠性，即模型经过重估计后的参数能够满足给定的单观测序列在模型下发生的概率是单调递增的。

Chapter 1 we introduce the risk process with positive and negative risk sums,show the background of the risk process. Chapter 2 we show the integral and differential equation of birth probability,give the Lundberg inequation that the ruin probability satisfies with martingale approach,then discuss then ruin probability of the risk process with two dependent positive and negative risk sums,study how the dependence impacts on the ruin probability. Chapter 3 we compare the concrete examples by numbers,and makes further comparison between the two results coming out of independency and dependency,with the purpose of narrating their respective impacts on the probability of ruin probability.

本文第一章引入含正、负风险和的风险模型，介绍风险过程的实际背景；第二章给出生存概率Φ所满足的积分-微分方程，利用典型鞅方法给出破产概率Ψ满足的Lundberg不等式，并且讨论两个相关正、负风险和模型的破产概率，研究相关性对破产概率的影响；第三章对具体实例给出数值比较，进一步把相关性和独立性两种情形的结果进行比较，说明对破产概率的影响。

Based on probability theory, a method for describing and calculating the collision probability between rendezvous and docking vehicle and debris is presented, and the method involves quantitatively analyzing the collision probability using quasi maximum instantaneous collision probability and total collision probability. The method calculating the indexes is developed, and the input required to perform a calculation includes the respective state vectors, position error covariance matrices and physical sizes of objects involved.(3) Two methods to analyze relative trajectory safety between chaser and target are developed, which are 3-sigma ellipsoid based methodology and collision probability based methodology.

1分析了交会对接各阶段面临的主要轨迹安全威胁，阐述了被动和主动安全策略、目标器的交会对接控制区域等保证交会安全的措施；(2)基于概率思想发展了线性和非线性运动情况下飞行器与空间碎片的碰撞判断方法，提出采用总碰撞概率和拟最大瞬时碰撞概率来综合描述飞行器与空间碎片的碰撞危险程度，推导了通过飞行器和空间碎片各自的状态矢量、位置误差协方差矩阵以及形状尺寸来计算碰撞概率的公式；(3)提出了两种分析追踪器和目标器之间相对轨迹安全的新方法：基于3σ椭球的轨迹安全分析方法和基于碰撞概率的轨迹安全分析方法。

与prior probability相关的网络解释 [注：此内容来源于网络，仅供参考]

Prior probability：先验概率

主流的金融学理论中,一般把人们对不确定条件下各种未知变量的认知假定为了解其概率分布;而具体到决策过程,则认为个体所遵循的基本法则是贝叶斯规则,即人们根据新的信息从先验概率(prior probability)得到后验概率(posterior probability)的方法.

Prior probability：先验机率

一、 台湾今天的建筑形式(architectural form)之杂乱无文是有目共睹的,如果我八、 何谓先验机率(prior probability)、事后机率(post-prior probability)及条件机率方案或工商综合区开发设置办法均有明文规定.

Prior probability：事前机率

(11) 一个合理事件的事前机率(Prior Probability)为HTN最重要的特徵是将能量函数(Energy Function)的观念引入网路中,作为稳定状态评估的标准. 每一个节点的能量函数可定义为霍普菲尔-坦克网路受限於它是一种最陡梯度法((Gradient Descent)程序,

Prior probability：先验概率; 事先概率

principal value interval 主值区间 | prior probability 先验概率; 事先概率 | prism 梭柱(体);角柱(体)

prior probability density：事前机率密度;先验机率密度

事前机率 prior probabilities | 事前机率密度;先验机率密度 prior probability density | 优先排队 priority queueing