dimension reduction

Linear transformation technology for image feature dimension reduction

图像特征维数约减的线性变换技术

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evaluation of the slope stability using ann based sir for dimension reduction

基于SIR维数压缩的边坡稳定性神经网络评价

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by pca dimension reduction, the high dimensional data space has been greatly reduced, and after that, bp ann is used to screen out rare celestial objects with high accuracy. in this way, the training time becomes shorter.

利用PCA降维，大大减少了高维光谱数据的维度空间，然后利用BP人工神经网络进行筛选，提高了激变变星搜寻的准确率，减少了模型训练时间。

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singular value decomposition ( svd) is a dimension reduction method, and symbolic data analysis ( sda) is a new analytical approach to processing mass data.

奇异值分解（SVD）是一种对数据进行降维处理的方法，符号数据分析（SDA）是一种处理海量数据的全新数据分析思路。

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Among all sort of data types in big data era, the time series has received increasingly attention. Technologies including dimension reduction, indexing and similarity searching on time series have been well studied.

在大数据时代的众多数据类型中，时间序列因其在众多领域内的广泛应用而受到普遍关注，包括降维、索引、查询在内的诸多技术被广泛研究。

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in order to improve the performance of ids (intrusion detection system), a synthetic dimension reduction method is proposed in this paper.

为了提高入侵检测系统的性能，提出了一种综合降维方法。

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Lygodium japonicum; polysaccharide ( PSA); response surface methodology ( RSM); dimension reduction analysis ( DRA);

海金沙草；多糖；响应面分析；降维分析；

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A mapping-based dimension-reduction algorithm for probability density evolution analysis of stochastic structural responses is proposed.

提出了随机结构响应密度演化分析的映射降维算法.

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Experiments demonstrate the efficiency of this method for text feature dimension reduction.

实验验证了这种方法应用于文本特征降维的有效性.

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Then we use the dimension reduction method to improve the cubic spline function interpolation method, so the calculation speed is improved.

另外，我们用降维方法改进了三次样条函数插值求解方法，提高了计算速度。

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The main contributions include: 1) A novel dimension reduction method, Supervised Latent Semantic Indexing ( SLSI), was proposed to represent documents for text classification tasks.

第一，提出一种有监督的潜在语义索引（SLSI）模型降维方法，用于文本分类任务中的特征表示。

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Graphics mode of influential points is available via dimension reduction.

通过降维，就可对高维数据的强影响点进行图示。

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kernel method as a non-linear dimension reduction method is widely used.

核映射是一种广泛使用的非线性映射方法。

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This paper studies the chemical data pretreatment and describes the contents and methods in various phases of data pretreatment such as secondary variables selection, data acquisition, data ( reconciliation), input data dimension reduction.

对化工数据预处理问题进行了研究，阐述了化工数据智能建模中辅助变量选择、数据采集、数据校正、输入数据降维等各种数据预处理的思路与方法。

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This paper focus on the feature dimension reduction method of combination of PCA and LDA, finally recognize the facial expression information using HMM.

本文研究了PCA和LDA结合的特征降维方法，最后用HMM进行面部表情信息识别。

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dimension reduction of state space building model

状态空间建筑热模型的降维

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an efficient method to calculate the quasi-static capacitance of the via hole structure embedded in a multilayered dielectric media named dimension reduction technique ( drt) is presented.

本文采用维数缩减技术（DRT）提取了多层介质中通孔结构的准静态电容参数。

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we mainly apply dimension reduction methods which can reduce the time complexity and space complexity effectively and also obtain better recognition effect.

主要采用降维的方法进行数据压缩，获取重要的特征信息以进行匹配的实现，这样既降低了时间复杂度和空间复杂度，同时也获得了较好的识别效果。

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It was shown that the SLSI approach led to drastic dimension reduction and it maintained the classification accuracy as well.

SLSI可以取得好的降维效果，同时也能保证文本分类的精度。

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survey of dimension reduction methods in high-dimensional indexing schemes

高维索引机制中的降维方法综述

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Liner Dimension Reduction method has its firm theoretical basis and it is easy to implement and apply.

线性降维方法有着坚实的理论基础，优点是实现简单、适应性强。

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strategy of dimension reduction driven by discriminate analysis for microarray data

判别分析驱动的微阵列数据的降维策略

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