给出了一种基于信息理论的广义距离系数。
A generalized distance coefficient based on information theory was given.
用距离系数upgma法聚类分析产生了树状图。
Phenograms were constructed by using genetic distance UPGMA method.
距离系数是传统聚类分析方法中常用的相似程度统计量。
A new statistic named similar degree is formulated by combining two kinds of statistic—distance factor and similarity factor.
简要介绍了系统相似性度量中的非平权距离系数法,并将其应用于水文计算中相似流域的选择。
The paper briefly presents the method of uneven weight distance coefficient for the measurements of system similarity and introduces it to the choices of analogy basins in hydrologic calculation.
利用层次分析方法给出了样本指标的权重,进一步引入了加权相似系数和加权距离系数的计算公式。
The weights of sample index are given by analytical hierarchy process, and expressions of weighted similar coefficient and weighted distance coefficient are induced.
在平均欧氏距离系数基础上,运用UPGMA法,对甘草属12个类群的核型资料进行了Q型聚类分析。
In this paper, based on average Eucli dean distance coefficient, using UPGMA, Q cluster analysis for karyotype of 12taxa in genes glycyrrhiza L. have been conducted.
聚类分析方法利用距离系数的概念,把相关性较大的属性参数聚咸一类,使参数有一个正确的全面的分类。
Cluster analysis using the conception of distance parameter, made the attributes that have the high correlativity become the same sort. So the classification of attributes become complete and correct.
给出了一种基于信息理论的广义距离系数。这一新的信息系数较离散增量信息系数有所改进,并可应用于聚类分析。
A generalized distance coefficient based on information theory was given. The new information coefficient improved the increment of diversity and could be applied to cluster analysis.
本文扼要地介绍了模糊距离系数分类法的原理,并用该方法对东濮凹陷深部气层和干层作了聚类分析,与试井结论相比效果可佳。
This paper briefly describes the principle of fuzzy distance coefficient classification method and, with this method, makes cluster analysis for deep gas bed and dry bed of Dongpu depression.
该方法应用小波包变换提取信号各子空间的能量,以能量分类距离标准选取最佳小波包基,最佳小波包基上距离系数大的能量作为特征值。
It applies WP translate to get energy from subspace and select the best WP bases with classification distance criterion. The energy has bigger distance coefficient in best WP bases is the feature.
有上述公式可知,加速度取决于弹性系数和弹簧(即汽泡纸)收缩的距离。
So the acceleration depends on the value of the spring constant as well as the distance the spring (bubble wrap) is compressed.
而冲量耦合系数对点火区与聚光系统内表面的距离及喷管长度等参数并不十分敏感。
And the impulse coupling coefficient is not sensitive to nozzle length and the distance between ignition zone and inner surface of nozzle.
一个物体的温度的红外线探测器发现取决于排放系数,距离和照明领域。
The temperature of an object detected by the infrared detector depends on the emission coefficient, the distance and the lighting area.
这个系数本意不是距离度量。
计算机仿真结果表明,当待测距离一定时,光强调制系数随着安装误差的增大而减小。
The computer simulation is performed, and the results show that when the distance on measure is certain, the coefficient of the intensity modulation will decrease with the fixing error increasing.
针对图像检索的特点,将分形码中的位置参数替换为相对距离与方向系数。
In view of feature of image retrieval, the position parameter of IFS code is replaced with the relative distance and direction parameter.
对居群间的相似性系数和空间距离进行回归分析,表明二者之间不存在显著相关性。
Moreover, the regression between the similarity coefficient and the space distance showed that there was no significant correlation between them.
利用目标的反射光、两种激光波段的大气消光系数和其它关键技术来提高激光雷达的探测距离。
It USES reflection of object, atmosphere extinction coefficient of two laser wavelengths and others key technology to improve the observational distance of laser radar.
衰减系数平均功率随距离的延长而降低的比率。
Attenuation Coefficient The rate at which average power decreases with distance.
通过对斜碰撞过程中原煤(混矸)球的运动分析,推导出基于碰撞恢复系数的物料块反弹距离公式。
A formula of rebound distance based on coefficient of restitution was deduced through kinematic analysis of raw coal (mixed gangue) in the process of oblique-impact.
环境系数通常与距离生油凹陷的远近及与三角洲前缘砂体的接触程度等外部环境因素有关。
The environment coefficient usually relates to some external environment factors, such as the distance to genetic sag and the contact degree to frontal sand body of delta.
结果表明:1。不同环境下遗传距离的相关系数与所用的研究性状关系密切。
The results indicates1. The correlation coefficients of genetic distance under different environmental conditions closely relate to the selected characters.
然后,以特征系数作为识别特征量,采用最小距离分类法,实现了自动目标识别。
Then, the feature coefficients are classified by the minimum distance criterion to recognize the target automatically.
水动力系数的变化幅度随着浮体间距离增大而变小。
The change ranges of these hydrodynamic coefficients decrease as the distance between floating bodies increases.
计算结果表明,外加偶极子磁场使激波脱体距离增加,壁面摩擦系数和表面热流密度增大。
The results show that the shock standoff distance, skin friction coefficient and surface heat flux all increase with the strengthening of the external dipole magnetic field.
文中还给出了考虑分流系数后GJ-50型架空避雷线的适用距离。
The paper also gives the suitable distance of GJ - 50 overhead grounding wire considering the shunt factor.
结果表明,随着磁场的增强,激波脱体距离逐渐增加;总阻力系数和壁面温度逐渐减小。
The results show that the shock standoff distance is increased and total drag coefficient and wall temperature are reduced with increasing external magnetic field.
剑白香猪两品系的核型似近系数为0.9692,进化距离为0.0313,表明亲缘程度很高。
The karyotype resemblance-near coefficient is 0.9692, evolutionary distance of Jianbai Xiang Pig is 0.0313, it indicates relative extent is high.
土的固结度是排水距离、固结时间和固结系数的函数。
The degree of consolidation of soils is the function of water discharging distance, duration and coefficient of consolidation.
随着离开壁面距离的增加,壁面对表观黏性系数的影响衰减很快。
Meanwhile, the effect of the wall decreases rapidly with the increase of distance from the wall.
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