查询词典 discrete distribution

The discrete probability density function of beta distribution was used to express the organs' expansion laws, which was flexible enough to fit a variety of expansion forms.

用离散型Beta概率密度函数描述植物器官的扩展规律，可灵活地适应多种扩展曲线类型。

According to the principle of profit maximization and based on a discrete demand function which can be represented as a negative binomial distribution,the optimal pricing model for the perishable products is established.

基于一种负二项分布的离散需求函数，并在利润最大化原则下，建立了时效商品最优定价模型。

Binomial distribution is preferred in testability demonstration,but it is discrete.Because of calculation difficulty,the sampling plan is usually worked out with some adaptations.

在测试性验证中首选的二项分布是离散取值的，由于计算困难，确定抽样方案通常采用一些变通的方法。

Although, there has a progress in employing the lattice Boltzmann equation for fluid dynamics and modeling complex physics in fluids recently, there are some problems to be solved, such as the negativity of discrete local equilibrium or evolutionary distribution and the limitation of low Mach number.

尽管近年来在应用格子Boltzmann 方程对流体模拟和建模方面取得了重要进展，格子Boltzmann 方法仍有很多问题需要解决，例如离散的平衡态分布函数及分布函数的非负性问题、低Mach 数的限制问题。

Since the equity's price change is discrete when transacting, we use the cumulative link model to build transaction model. We get the conditional probability distribution of the change of equity's price.

而单笔交易中证券价格的变动为离散变量，本文采用积累线性模型为其建模，得到了在一定的交易方向和交易量下，证券价格变动的条件概率分布。

In this paper we propose an approach to augment the algorithm described before to improve their performance by defining the conditional probability distribution of different composition of continuous and discrete attributes, and implement these new modified algorithms in Weka. To reduce the storage complexity of the AODE algorithm, we used the selective ensemble method to modify it.

在本文中我们提出了通过有效地定义条件概率分布来改善基于朴素贝叶斯分类器的改进算法的性能的方法，并在Weka的框架下实现了我们提出的改进算法，同时考虑到AODE算法较高的空间复杂度，我们利用选择性集成的思想对AODE算法进行了改进，以降低其存储空间复杂度。

Topology optimization aims at finding the optimal distribution of materials in a prescribed design domain and the optimal way of component connection in a discrete structure.

所谓拓扑优化，就是要在给定的约束条件下，在一块预先给定的设计区域中决定最优的材料分布方式或者构件之间的最优连接关系。

First, an overview of discrete and continuous approximation models of the distribution network designing is present, as well as the models' strong points, shortcomings and their complement relationships.

对分销网络设计的离散模型和连续近似模型进行比较，指出两者的优缺点及它们之间的互补关系。

As to the risk model with random premium rate, we concerned with discrete random variable, continuous random variable and general random variable. We derive the formula of ruin probability, the extreme during the total duration of negative surplus and the joint distribution of the surplus immediately before ruin and the deficit at ruin.

对于保费率为随机变量的一类风险模型，本文就离散的随机变量、连续的随机变量、一般的随机变量三个方面进行讨论，运用概率方法和风险理论的方法推导出破产概率、末离前最大盈余分布、破产前瞬时盈余与破产赤字的联合分布等精算量分布的一般公式。

The conventional discrete random phases by registers shifting method are replaced by the introducing continuous uniform distribution phases. The proposed method can produce high quality random signals and is convenient in the software programming.

采用连续均匀分布的随机相位代替原来以寄存器移位方式生成的离散随机相位，这不但提高了信号的生成质量，而且使编程过程更简单。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。