查询词典 probability

This generator is based on acceptance-rejection technique, however, in theory, when the number of rectangle preponderates over 255, the acceptance probability is higher than 99.1%, with 98% of the time the required random variable is produced simply by doing a multiplication.

该算法基于接受－拒绝抽样技术，理论分析表明当矩形数大于255个时，该算法的抽样效率大于99.1%，而且98%以上的时间内仅需进行一次简单的乘法运算。

Then,based on the gap acceptance theory and probability method,the capacity calculating method of minor stream is deduced on the condition of two vehicle streams,and theory model ...

首先分析了交叉口车流的运行特点；然后基于可插车间隙理论和概率论方法，给出两股车流情况下次路车流通行能力的计算方法，并对主路车流车头时距服从M3分布次路车流的理论模型进行了推导；最后对整个交叉口的"冲突交通流-临界间隙法"进行了分析。

It includes as follows:(1) That the right acceptance probability to decide the initial value temperature should be 0.6 are presented by experiment. For the first time, crossover and mutation operator are used in populations to calculate the initial value of temperature. At least the initial value of temperature is 〓.(2) Replacing random change operator with crossover and mutation operators.

2使用遗传算法中交配与突变代替模拟退火算法中随机扰动操作，对两种操作方法进行定性分析，得到突变和交配操作与随机扰动方法在本质上的一致性；同时首次提出在不同温度条件下，使用不同的比例因子，控制参与交配与突变的基因位数，实现了二次使用模拟退火算法的过程。

Keywords: BP neural networks,model approximation degree, acceptance probability, variable stepsize learning algorithm

数值结果表明该算法不仅明显地提高了BP网络的学习收敛速度，而且在一定程度上还能避免陷入局部极小。

BP neural networks ; model approximation degree ; acceptance probability ; variable stepsize learning algorithm

数值结果表明该算法不仅明显地提高了BP网络的学习收敛速度，而且在一定程度上还能避免陷入局部极小。

Statistical control of products will be based on attributes, entailing a sampling system ensuring a limit quality corresponding to a probability of acceptance of 5%, with a non-conformity percentage of between 3 and 7%.

产品应依其属性执行统计控制，使抽样系统确保品质差异之接受相当于 5%，不合格比例介于 3%~7%之间。

Through compared with the difference of the sampling inspection's OC curves between existent and nonexistent inspection error by utilizing grouping method, we get the conclusion that all the traditional methods are designed on the premise that there is none inspection error exist, so it would terribly depress the probability of acceptance and couldn't veritably reflect the quality of the lot for inspection, if the inspection error is exist when sampling inspecting.

同时通过对集团检验错误存在与否的抽样检验特征曲线的比较，指出：以往的集团抽样检验方案设计，都是在假设无检验误差前提下设计的，在抽样检验中，若存在检验错误，会严重影响抽样检验的接收概率，使抽样检验结果不能客观地反映检验批的质量。

Our calculation shows that qa decreasing with the simulationtime can accelerate the convergence significantly,which is somehow similar tointroducing different temperatures for visiting and acceptance probability.

为了增加收敛速率，让原来固定不动的qa随计算机时间作线性下降，对粒子数N＝12，51的Thomson问题的测试表明我们的改进效果是很明显的。qa随计算机时间作线性下降类似于对接收几率引入了单独的温度，这个温度不同于跃迁温度。

The fatigue reliability analysis for the 16V240ZJB diesel engine crankshaft inserving DF4B internal-combustion locomotive were carried out in thisdissertation.Firstly,according to the fatigue loads of the crankshaft,the bendstress and torsion stress at danger zone in rated operation modes werecalculated respectively.The stress randomicity of the crankshaft was analyzedrelating operation modes of acceptance,and the probability distribution ofstresses were obtained with statistical analysis.

运用本文所提出的疲劳可靠性分析模型(干涉模型-Miner准则综合法及弯扭复合模型)和经分析简化得到的材料p-S-N曲线和p-Sa-Sm-N曲面，分别按一维、二维疲劳应力及弯扭复合应力三种情况对东风4B型内燃机车16V240ZJB柴油机曲轴进行了疲劳可靠性分析。

Influence for hazards by error and missing reports should be comprehensive considered. Reliability of hazard system and accident probability is discussed.

综合考虑误报和漏报对危险源的影响，探讨了危险源系统的可靠性及发生事故的概率。

Bob Eckert has been chairman and chief executive of Mattel for eight years.

美泰董事长兼首席执行官鲍勃·埃克尔特在任已8年。

The outlook for honors and disgraces carries on and surpasses the traditional outlook for honors and disgraces theoretically, and carries on and develops the theory of construction of socialist mora...

社会主义荣辱观的提出在理论上是对传统荣辱观的一次继承和超越，是对社会主义道德建设理论的继承和发展，在实践上有利于形成良好的社会风尚。