查询词典 probability function

Deterministic search process restricts its flexibility, determined on the basis of fixed TS, according to the information of moving, add a probability function to the evaluation function, increase the probability factors , broad the search area, makes a better solution a better chance of being selected.

T S中确定性的搜索过程制约了它的灵活性，所以在禁忌搜索原则确定的基础上，根据搜索中的移动信息，增加概率性因素，在评价函数中增加一个概率函数，把确定性选择过程变为概率性的，从而改进搜索方向，拓宽搜索领域，使得更好的解有更大的被选中的机会。

Focused on impact points of projectile dispersion zone, probability statistics was utilized to build mean function and gamma function,confidence was determined by probability value.

文中在对射弹散布区域的落点进行处理上采用了概率论统计方法，建立均值函数和伽马函数，通过对置信区间的概率取值来确定置信度。

The noise frequency modulation signal was particularly analyzed. The Fokker-Planck equation of noise frequency modulation was presented and the Motion-Group Fourier Transform was used by converting the partial differential equation into the variable coefficient homogenous linear differential equations. Then the solutions were given by using the peano-baker series. So the probability density function of noise frequency modulation in the filter was given. On the basis of the probability density function the stochastic resonance of noise frequency modulation signal is analyzed.

首先建立了噪声调频干扰信号通过脉冲压缩雷达中频滤波器后所满足的福克尔－普朗克方程，然后利用群移傅立叶变换（Motion-Group Fourier Transform，MGFT）将此偏微分方程化成了变系数齐次线性微分方程组，并利用Peano-Baker级数法给出了该方程组的解，最后得到了噪声调频干扰信号通过脉冲压缩雷达中频滤波器后的概率密度函数，在此基础上研究了噪声调频干扰信号造成的随机共振现象。

I have calculated the species diversity for 3 layers (i.e. tree layer, shrub layer and herb layer) by means of various biodiversity index formulas and analyzed the relative species abundance using 9 models of the probability density distribution functions, such as, 3 Distribution (or Beta Distribution, Weibull Distribution, Lognormal Distribution, Poisson Distribution, Binomial Distribution, Negative Binomial Distribution ,Geometric Distribution, etc.. chi-square analyses were conducted on species distribution by using the chi-square test formulated by Pearson to test which distribution function is better, the result of chi square test made it possible to reject the other 8 distribution functions, theβdistribution function performs better than other probability density functions, it has a very close approximation, which can be used for the description of relative abundances of species in forest communities in this data set.

在相对多度研究上选用了九种概率分布模型，这九种概率密度分布函数依次为：贝塔分布、Weibull分布、对数正态分布、泊松分布、二项分布、负二项分布、几何分布、对数分布和奈曼A型分布，并进行了严格的卡方检验，结果表明：其它八种分布均被遭到拒绝，只有贝塔分布获得了通过，且拟合的结果非常理想。

The probability function is definitely a derivative of the Boltzmann probability distribution function.

函数的概率绝对是一个波尔兹曼概率分布函数的导数。

After we get the TPD function of a little time interval, substitute it and the initial probability distribution into the Chapman-Kolmogorov equation, we can get the full time path of the development of system's probability distribution function .

在求得了某一段时间间隔内的转移密度函数后，将其和系统的初始概率分布代入Chapman-Kolmogorov方程就可以求得各时刻系统的概率分布。

In the point reactor model, the probability function(n, t0, t) of a source neutron at time t0 leading to n neutrons at time t is dealt with. The non-linear partial differential equation for the probability generating function G(z; t0, t) is derived. By solving the equation, we have obtained an approximate analytic solution for a slightly prompt supercritical sys tem.

在点堆模型基础上，考虑了在t0时刻系统引入一个源中子，在t时刻产生n个中子的概率(n， t0， t)推导了概率生成函数G(z； t0， t)所满足的偏微分方程，并得到了近似解。

I present cluster schema for combinatorial problem with clustering, design a new crossover operator cluster crossover, study the survival probability of c-schema under c-crossover, apply it successfully to graph coloring, load balancing and maximum spanning tree problems: give measurements of diversity in GA, set up varying crossover probability algorithms to maintain diversity, obtain good results when apply it in avoiding premature convergence and multi-modal functions optimization; establish GAC to be suitable for non stationary function, it can explore the change of environment and find the best solution even for some"anomalous"function.

针对聚类组合优化问题提出了聚类模式，设计了一种新的交换操作：聚类交换并研究了聚类模式在聚类交换操作下的生存可能性，成功的将聚类交换思想和算子应用于图着色、负载平衡和最大生成树问题，佐证了类理论，表明类理论可以指导新的应用算法设计；给出了GA中多样性的度量标准和维护多样性的动态交换概率算法，用于避免过早收敛和多峰函数优化，取得了较好的结果；构造了维持种群多样性以适应动态环境的方法GAC，在某些现有方法无能为力的问题上，GAC能够探测到环境变化，找到当前最优解。

Based on the idea of tolerance-robustness design,considering the fuzziness of product quality,and taking the ratio of the variance of probability density function of deviation distribution for the close-loop to the probability of high-quality product as design objectives,the objective function of the loss of quality robustness for this tolerance optimization design was established.

在目标函数中，加工成本是优化的一个重要目标，即寻求总加工成本的最小化，同时还要使设计的产品质量稳健性好，即寻求产品质量稳健性损失成本的最小化。

Probability density function, cumulative distribution function, survival function, hazard function, PP plot, and others.

概率密度函数，累积分布函数，生存函数，危险函数，聚丙烯阴谋，等等。

Now he worked in ajoint venture.

现在他在一家合资企业工作。

More troops in Afghanistan won't change any of the foregoing.

更多的在阿富汗的军队也不会改变之前的状况。