应用特征选取和模式聚合理论以降低特征空间维数。
This paper employs feature selection theory and pattern aggregation theory to reduce feature space dimension.
数值实验表明，该方法可以降低特征空间维数，具有较好的分类准确率。
Numerical simulation shows that the proposed method can reduce the dimension of the feature space, and has higher correct classification rate.
随着半导体器件参数的增加，目标函数的自变量空间维数变得越来越大。
With the increase of the number of parameters in semiconductor devices, the dimensions of space in which the object function exists become larger and larger.
但注入功率空间维数太高时则难以直接在三维或二维空间上实现可视化。
However, the dimension of the injection power space is too high to realize visualization in 2d space or 3d space directly.
但人脸的原始特征空间维数很高，无法直接利用LDA方法提取分类特征。
But the dimensionality of the original face image is too high to use LDA method directly.
结果表明，系统的临界点不仅与空间维数有关，还与晶格格点的配位数有关；
The result shows that, the critical point of the Gauss model depends not only on the spatial dimension of the system, but also on the coordination number of the site.
这些方法，仅对地基-基础界面进行有限元离散，使问题的空间维数减少一维；
Only the subsoil-foundation boundary is discretized, the same as boundary element method, which reduces the spatial dimension by one.
计算质量可看成二重或三重积分，这取决于空间维数，取决于密度函数，dA还是。
And mass will be double or triple integral, depending on how many dimensions you have, dV of whatever density function you have, dA or dV.
径向基函数插值是一种新型的无网格插值方法，具有形式简单、空间维数无关等优点。
Radial basic function is a recent meshless interpolation technique. It has a very simply form and no correlation with the space dimensions.
计算的复杂度不再取决于空间维数，而是取决于样本数，尤其是样本中的支持向量数。
Thus the computational complexity is no longer depend on space dimension, but the number of samples, especially the number of support vectors in each sample.
该方法可降低数据空间维数和支持向量机处理过程的复杂度，但不会降低分类和预测性能。
The method can reduce the dimensions of the data set and the complexity of the model of SVMs, and doesn't affect its classification and prediction performance.
最后，根据降秩技术中的交叉谱思想，提出了一种新的对信号子空间维数减少时的处理算法。
Finally, to deal with the situation that the dimension of the signal subspace decreases, a new algorithm is proposed based on the idea of the Cross Spectral Method.
机械系统的欠驱动特性是指系统控制输入向量空间的维数小于系统广义坐标向量空间维数的情况。
The underactuation of mechanical systems means that the dimension of the control vectors of systems is less than that of the configuration vector of systems.
确定投影空间维数和建立投影空间模型是计算机视觉领域中形态图计算时一个十分重要的基本问题。
The establishment of dimensions and models of viewing space is quite important for computing aspect graph in computer vision.
本文给出了证明矩阵行空间维数等于列空间维数的另一种较简单的证法，以及解决几个相关问题的捷径。
This paper give an expositior of simple way to display that the dimension of row space of matrix equals to the dimension of column space and some shortcuts to solve the problems concerned.
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.
在采用SVM算法的文本分类中，由于文本所表征的向量空间维数通常非常巨大，因此在训练过程中将耗费大量的系统资源。
For text classification based on SVM learning algorithm, usually there is an abundance of training data, which will cost a lot of computing resources in training process.
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?
如果模式空间的维数较大，那么不仅会造成计算上的困难，而且由于不少变量之间往往相关程度高，会造成混淆和不确定性，所以需进行特征选择。
If the dimension of pattern space is too big, it would result in the difficulty on calculation, and confusing with the indetermination because of high correlation of many variables.
这样就驱使理论家去思考生活在3维空间的人为的 理由：所有可能的维数在宇宙里都是存在的，但是我们看到的只是我们能够看到的东西，因为像我们人，这样的生物，需要有一个3维的栖息地。
That drives theorists to anthropic arguments: universes of all possible dimensionalities exist, but we see what we see because beings like us require a 3D habitat.
分析的结果表明，单一分形维数并不能完整地描述万州区滑坡的空间分布结构；
The result indicates that a fractal dimension could not integrally describe the spatial distribution structure of landslides in the region.
从而解决了文本处理中的同义词和一词多义问题，在很大程度上降低了特征空间的维数，并且得到了较优的性能。
Thus we solve the problems of the synonym and the multivocal word, and reduce the dimension of the characteristic space to a great extent, get the correct rate of more excellent classification.
在此参数表示下，模糊数可直接视为二维度量空间r 2中的有界连续曲线，这给分析模糊微分方程带来了便利。
By the parametric representation, fuzzy number means a bounded continuous curve in the two-dimensional metric space R2, so that it is easy to analyze fuzzy differential equations.
采用相空间重构和关联维数方法，研究了广西沿岸月平均海平面变化的分形特征。
By using the methods of phase space construction and correlation dimension, the fractal character of sea level variation along Guangxi coast was analyzed.
研究了ABR反应器启动成功后成熟颗粒污泥的物理性质和不同拓扑空间下的分形维数。
The physical properties and fractal dimensions within different topological spaces of the mature granular sludge in an anaerobic baffled reactor (ABR) were investigated.
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.
本研究采用计盒维数刻画了延龄草不同生境下的种群空间分布格局。
This study depicts the population space distribution under different living circumstances using Box counting dimension.
本文研究了ABR反应器启动过程中及启动成功后颗粒污泥的物理性质和不同拓扑空间下的分形维数。
The physical properties and fractal dimensions within different topological Spaces of the granular sludge in anaerobic baffled reactor (ABR) were investigated.
数值测试表明，按混沌理论优选的延时时间和嵌入相空间的维数一般不是负荷预测的最适合参数。
Numerical simulation test shows that the delay time and embedded space dimension given by chaos theory usually are not the best ones for load forecasting.
非负矩阵分解过程中，适当地选取特征空间的维数能够获得原始数据的局部特征。
The local feature based representation could be obtained by choosing suitable dimension of the feature subspace in NMF.
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