查询词典 negative binomial distribution

Since the number of trips is a non-negative integer, truncated, and of endogenous stratification, this study empirically analyzes its recreational benefits by the On-site Poisson and truncated negative binomial with endogenous stratification of the Travel Cost Method. Besides, this study adopts TNBES to see how the number of trips disperse and takes the consumer surplus to assess benefits. As to visitors' valuation, this research uses the ordered probit to do empirical analysis and then divides all satisfaction factors by the factor analysis and cluster analysis into four factors and two clusters, which then are taken as explanatory variables.

考量旅游次数为非负整数、截断、内生分层等特质，本研究在游憩效益方面，采旅游成本法中的现场波松(On-site Poisson)、截断式内生分层负二项(Truncated Negtive Binomial with Endogenous Stratification， TNBES)模型做实证分析，并於TNBES模型检定旅游次数之扩散情形，效益之评估采消费者剩余为计算标准；在游客评价方面，采次序波比模型做实证分析，并将游客对科博馆各项因素满意度以因素分析、集群分析，区分为四大因素构面与二大集群，纳入游客评价为解释变数，并探讨消费者剩余对游客评价之影响。

The application of the lattice Boltzmann method in unsteady open channel flows was studied in detail in the paper. An existing lattice BGK model was mended; For the problem of negative local equilibrium and evolutionary distribution, we proposed a lattice Boltzmann model based on cell-population equilibrium, which is a direct non-negative approximation to the continuous Maxwell distribution. The model reduces the transport and collision, two basic evolution steps in the LB model, to transport of the non-equilibrium distribution.

本文系统的研究了格子Boltzmann 方法在明渠非恒定流中的应用问题，改进了一个现有的LB 模型，数值实验表明此改进是有效的；在平衡态分布函数及分布函数的非负性问题上，作者提出了一个基于单元均衡的格子Boltzmann 模型，通过直接对Maxwell 分布函数的离散化实现对速度分布函数的非负离散，这种方法将传统模型演化过程中的碰撞和输运两个步骤直接表现为粒子的输运。

Negative binomial distribution fitting results suggest that death of stomach cancer exists village aggregation.

负二项分布拟合结果提示胃癌的死亡存在村落聚集性。

The spatial patterns of the larvae in the plantation were conformed to negative binomial distribution.

坡位、坡向、树种和树冠方位对幼虫的分布有显著影响。

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。

Firstly, the characterist ics of the traffic accident data were analyzed, and the results show that theaccident data follow the Negative Binomial distribution.

以哈尔滨市干道路网为研究对象，收集到了该路网上468个路段和163个平面交叉口的道路交通数据，以及1999年至2004年所发生的8510起交通事故数据。

Model of stochastic interest rate was established by reflected Brownian motion and negative binomial distribution. Based on the stochastic interest rate model, the combined life insurance was discussed.

bstract 以反射布朗运动和负二项分布为基础建立随机利率模型，并在该随机利率模型下对联合生命保险进行讨论。

Syzigachne was dispersed as negative binomial distribution, because of affections of environment including tillage, crop planting, fertilizer application, weed control, and other natural elements.

草在田间的空间分布型为负二项分布，其聚集的原因主要是环境的影响，包括人为的翻耕、作物种植、施肥、除草等及其它自然因素的作用。

A model of stochastic interest rate was established by reflected Brownian motion and negative binomial distribution. Based on the stochastic interest rate model, the combined life insurance was discussed.

以反射布朗运动和负二项分布为基础建立随机利率模型，并在该随机利率模型下对联合生命保险进行讨论。

Among 6 methods used to measure the pattern, the application of variance/mean ratio together with the x^2 test for goodness-of-fit to negative binomial distribution were deemed the best as their ecological meaning is explicit.

在判定物种分布格局的5种方法中，以方差／均值比率和负二项分布的检验联合运用效果较好，不仅生态学意义明显，而且结果具有严格的统计学意义。

"Please accept this talisman as a token of our thanks."

请收下这个护身符以表达我们的感谢。

If I have that magic, I will be more acceptable in the society.

如果我拥有那种魔法，我将更加被这个社会所容纳。