依信息维的定义:本文给出计算地震空间分布信息维数的具体方法。
According to the definition of information dimension: d, the concrete method for computing information dimension of space distribution of earthquakes is given in this paper.
最后建议采用网格维数包括信息维数对城市土地利用的空间形态做进一步的定量描述。
A typical grid dimension is information dimension, the related probability measurement can be determined by counting the number of pixels of some type of land use in a given digitalized map.
种群格局信息维数能够刻划格局强度的尺度变化程度,揭示出种群个体分布的非均匀性状况。
The information dimension of population patterns quantifies the scale variation degree of pattern intensity, and discloses the unevenness of individual distribution.
利用分形理论中的计盒维数、信息维数和关联维数,采取变换取样空间的方式研究了武夷山双遗产地景区系统分形特征的多尺度效应。
By using box dimension, information dimension and correlation dimension, fractal features of Wuyishan Natural and Culture Heritage were studied at a multi-dynamic scale.
通过主成分分析法将众多指标进行综合,消除样本间的信息重叠,降低BP网络的输入维数。
Through principal component analysis, we have synthesized numerous indexes, (eliminated) information overlapping of the sample, and reduced the input dimension of BP network.
论述了带反馈分布式信息融合系统中传感器观测维数不同时的状态估计方法。
The method of state estimation is discussed, when radars have different observation dimension in one distributed data fusion system with feedback.
在诊断模型中,应用APEX网络提取分类信息,压缩向量空间维数,利用前馈网络建立其类型识别函数。
In the model, using APEX network extracts classification information and condenses vector space dimensions, making use of feedforward network establishes the classification recognition function.
属性约简是数据挖掘预处理中非常重要的一步,它通过减少信息的维数提高数据挖掘算法的效率。
Attribute reduction is one of important step in preprocessing of data mining, it improves the efficiency of the data mining algorithm by reducing the dimensions of the information.
在对焊点质量与焊接过程中信息的盒维数统计物理关系的分析基础上建立了基于模糊控制理论的焊点质量判定系统。
The qualitative judgment system based on fuzzy control was built after analyzing the relation between quality of spot welding and the box fractal dimension of signals in spot welding.
此控制方法的优点是不需要系统的动力学信息,系统的维数和参数均不改变,实验中容易实现。
It is the best advantage that the method does not require apriori information of system dynamics, and the control can be achieved easily.
实例分析表明,相对于单嵌入维数法,多嵌入维数组合预测方法可以综合利用不同相空间中的有用信息,提高径流时间序列预测的精度。
The results of actual runoff prediction show that the proposed method could use information synthetically in multi-dimension embedding phase spaces, and effectively improve the prediction accuracy.
对原有的表面分形维数的计算方法进行了简化,借此可以利用压汞或其他分析方法获得的孔分布信息计算出多孔介质的表面分形维数。
A simplified procedure is developed to acquire the surface fractal dimension of porous media utilizing the PSD information from mercury porosimetry or other analyses.
在图像分形信息的提取方面,本文提取了灰度图像的分形维数及自然景物图像的IFS参数。
In this paper, the fractal dimension of gray images and the IFS parameters of natural scene graphics are extracted.
分别采用互信息方法确定重构最佳时延和和关联积分法确定重构嵌入维数。
Mutual information method and correlation integral method were presented to get the two optimal parameters.
以网络信息流分解为基础,利用范德·蒙德行列式的性质设计多播码字,在多播组成员固定的条件下实现不同维数多播码字的转换。
Based on information flow decomposition, multicast code of different dimensions in the case of fixed multicast members is constructed by exploiting the property of Vandermonde determinant.
其目的是在减少数据维数的同时,尽量减少或去除次要的冗余信息,并且保留或增强有意义的信息。
It has been developed with an aim to reduce or eliminate information bearing secondary importance, and retain or highlight meaningful information while reducing the dimensionality of data.
利用数字量信息—关联维数作为诊断标准有利于计算机对设备的运行状态进行识别与判断,为机械设备的在线监测与故障诊断提供了可靠的工具。
Thecorrelation dimensions of the steam-electric generator set in different state was studied, meanwhile the criterion for the steam-electric generator set fault diagnosis was given.
数据维数的增加为人们提供了丰富的信息,也给高维数据的分析处理带来了极大的挑战。
Although the increasing of the dimensionality of the data provides us more rich information, it has brought us great challenge to deal with these data.
来自多传感器的目标特征往往是高维数的,并且包含了更多的冗余信息和噪声。
The features of target from multi_sensor system are generally high dimensional, redundant and noisy.
特征提取可以降低数据空间的维数,挖掘出能更有效的代表目标信息的数据,从而使目标的分类更加准确有效。
The dimension of data can be reduced by feature extraction, and more meaning data about target can be got by feature extraction, which make target classification more exactly and effectively.
实验证明,通过选取适当的维数范围该方法能得到良好的边缘检测效果,并能突出主要的图象边缘细节信息。
Experiment results show that this method is effective for edge detection by selecting proper range of the dimension, giving the eminent and detailed edge of the original image.
现有的张量维数约简方法大都是监督的,它们不能有效利用未标签样本数据的信息。
Due to the supervised view of point, most of the present tensor dimensionality reduction methods cannot take full advantage of the unlabeled data.
现有的张量维数约简方法大都是监督的,它们不能有效利用未标签样本数据的信息。
Due to the supervised view of point, most of the present tensor dimensionality reduction methods cannot take full advantage of the unlabeled data.
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