查询词典 geometric mean

For negative ground flashes the geometric and arithmetic mean of the interstroke inte...

4%的负地闪有至少一次继后回击强度大于首次回击，而且有 2 0 %的继后回击其强度大于首次回击强度。

We propose a unified method to approximate important geometric attributes, including normal vector, gauss curvature, mean curvature, principal curvatures and principal directions on point sampled surface. Based on MLS projection our method is robust to noise and stable to the sampling density.

曲面的微分性质包括法向量和切平面、高斯曲率、平均曲率、主曲率和主方向，在计算机图形学、机器视觉和计算机辅助设计等领域发挥了重要的作用，比如曲面绘制、内外测试、曲面重建、曲面简化、去除曲面噪声和模型分割等。

In Chapter 4, the pricing of Asian geometric average option under stochastic interest rates is studied, assuming CIR model for the interest rates. Asian option is strongly dependent with path, usually have a long duration, the movement of interest rates becomes more important in pricing such long-dated options. The CIR interest rate model not only considered the interest rate behavior has mean-reverting but also take into account that the fluctuation rate is direct proportion with the square root of its interest rate. Finally, the method of finite difference for the Asian geometric average option under CIR interest rate model is given.

第四章在利率满足CIR利率模型的假设下，研究了几何亚式期权的定价公式，亚式期权是强路经依赖性期权，通常有效期较长，在进行较长时期的投资时，利率的变化是非常重要的，CIR利率模型不仅考虑了利率行为具有均数回归的现象，而且还考虑其波动性的大小与利率大小的平方根成正比，最后给出了CIR利率模型下的几何亚式期权定价的有限差分法。

The paper presents a new geometric feature according to the characteristics of fabric defects, and use the mean geometric feature value of each defect class as the initial clustering center to improve the result of clustering.

根据布匹瑕疵的特点提出一种新的几何特征，并使用各类瑕疵的几何特征均值作为初始聚类中心，提高ISODATA算法的聚类效果。

Using the matrix geometric method we get the probability distribution of the number of customers, the mean number of customers and the mean sojourn time of a customer in the steady-state.

用矩阵几何解的方法得到了稳态分布，平均队长以及平均逗留时间的表达式。

The weighted arithmetic-geometric mean inequality is a very important inequality in mathematics.

加权 算术——几何平均值不等式是数学中的一个重要不等式。

Following the booster dose, a robust anamnestic response was developed in all of 8 intramuscular revaccinees and 11 controls but 16 of 18 intradermal revaccinees, who lost anti-HBs of≥10 IU/L over time, and geometric mean titers of anti-HBs climbed to 208, 105, and 549 IU/L, respectively.

抗-HBs阴转者（肌肉、皮内复种和应答对照分别为8、18和11人）在加强1针后，除2名皮内复种者外，均产生了强劲的抗体回忆应答

Dividing disease entities by fixed digits of ICD-9 code is easily performable. This method should be used when the disease entities include about 60% of total inpatients, and geometric mean should be used in calculating average length of hospital stay and average cost.

采用固定位数的ICD-9编码分类方法可操作性较好，分析病种所包括的住院患者占住院患者总数的60%左右较为合适，病种平均住院天数和平均住院费用等指标以几何均数为宜。

It is also proven that the OLS residuals of a log-linear trend model of an integrated series will be always a random walk, in which case the differenced model that yields the same result as geometric mean is appropriate.

我们也发现，一个协整序列的对数趋势中最小二乘估计获得的残差通常是随机游动过程。

The positive rate and geometric mean titres of specific lgg antibodies in patients with ami and omi were significantly higher than those in controls.

急性心肌梗死和陈旧性心肌梗死患者血清肺炎衣原体慢性感染率及其抗体滴度几何均数均明显高于对照组。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。