也可能存在更多的维数。
数据挖掘所面临的挑战在于数据的维数及其容量。
The challenge of data mining is dealing with the dimensionality of the data and the volume of it.
宇宙有多少维数?
必须指定数组维数,并且它们必须为正的整型常量来表示。
The array dimensions must be specified and they must be positive constant integer expressions.
为什么不是2维、4维、5维或是更高的维数呢?
分形维数是描述图像粗糙程度的主要参数。
Fractal dimension is an important parameter to characterize roughness in an image.
本文提出了一种新的计算分形维数的方法。
In this dissertation, a new computation method of fractal dimension has been presented.
特征选择和特征抽取是维数约简常用的两种方法。
Feature selection and feature extraction are common methods for dimensionality reduction.
分形集的各种维数的计算一直是分形几何研究的重点。
The computation of the various dimensions of fractal sets is very important in fractal geometry research.
拖拽并选择你想要裁剪的区域,它就会自动告诉你选择的像素维数。
Drag and select the area you want to crop, and it'll automatically tell you the pixel dimensions of the selection.
该模板将确定窗体或报表上有哪些节并定义每一节的维数。
The template determines which sections a form or report will have and defines each section's dimensions.
因此在数据挖掘界广为流行着一个名词——‘维数灾难’”文卡如是说道。
So one expression common in the data mining community is 'the curse of dimensionality,'" says Venkatasubramanian.
盒维数的简单统计结果可以作为PQ神经网络分类器的输入特征量。
After simple statistics, the dimension can act as the input vector of ANN for PQ classification.
在文本分类中,有效的维数约简可以提高学习任务的效率和分类性能。
Effective dimensionality reduction could make the learning task more efficient and more accurate in text classification.
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.
该方法利用数据融合技术降低了模糊控制器的输入维数,简化了模糊控制器的设计。
It reduces the input dimension of the controller using data fusion technique and simplifies the fuzzy controller's design.
我们所处的宇宙是否可能只是漂浮在更高维数空间上的一层薄膜,它反复地撞击到邻近的宇宙。
Could our universe be a membrane floating in higher dimensional space, repeatedly smashing into a neighbouring universe?
增加一个数组的维数时,该数组所需的总存储空间会急剧增大,因此应慎用多维数组。
When you add dimensions to an array, the total storage needed by the array increases considerably, so use multidimensional arrays with care.
本文分析了分形理论在储层构造裂缝评价中的应用,提出了计算分形维数的网格覆盖法。
This paper presents the application of fractal theory to the evaluation of structural fractures in reservoirs and puts forward a grid-coverage method to calculate the fractal dimension.
在实数域分形盒维数计算方法的基础上,提出了双金字塔数据形式的盒维数快速计算方法。
In this paper, a fast approach for box dimension estimation based on a dual pyramid data structure is developed.
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.
主成分分析法可以提取样本集的主元,从而降低样本的维数,甚至可以实现样本的最优压缩。
Principal component analysis method can reduce dimensions of samples and even produce optimal compression of samples.
在这两个极端之间还有这样的问题,当维数改变时它们的解答不变,但(证明的)技巧则不然。
Between these two extremes there are the questions for which the answers are invariant under change of dimension, but the techniques are not.
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.
点击参数列表旁边的添加按钮会弹出一个创建参数对话框,在这个对话框里你可以输入参数名称、类型以及维数。
Clicking the Add button next to the parameter list brings up a Create parameter dialog, where you can type in the name, type, and dimension of the parameter.
他补充道,“在这里,数据的维数和容量是个大问题,要依靠计算来找到我们想要找寻的模式会变得极为困难。”
We are now at the point where the dimensionality and size of the data is a big problem. It makes things computationally very difficult to find these patterns we want to find.
储集层岩石的孔隙空间具有良好的分形特征,孔隙结构的分形维数可以定量描述孔隙结构的复杂程度。
There is fractal property in pore space of reservoir rocks. The fractal dimension can be used to describe quantitatively the complexity of pore structures.
实验表明絮凝体的分形维数与絮凝条件有较强的相关性,可以作为混凝投药系统优化设计的主控参量之一。
The results showed that the fractal dimensions had good response to the flocculation conditions, and it can be used as one of the main parameters of coagulant dosing system.
用文卡的话说,简化多维数据的多维标度就是试图“通过找出定义大多数行为的关键属性来降低数据的维数”。
Multidimensional scaling to simplify multidimensional data is an attempt "to reduce the dimensionality of data by finding key attributes defining most of the behavior, " says Venkatasubramanian.
用文卡的话说,简化多维数据的多维标度就是试图“通过找出定义大多数行为的关键属性来降低数据的维数”。
Multidimensional scaling to simplify multidimensional data is an attempt "to reduce the dimensionality of data by finding key attributes defining most of the behavior, " says Venkatasubramanian.
应用推荐