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- A Study on Feature Dimension Reduction in Text Categorization 文本分类中特征降维方式的研究
- Linear transformation technology for image feature dimension reduction 图像特征维数约减的线性变换技术
- Literature Review of Feature Dimension Reduction in Text Categorization 文本分类中的特征降维方法综述
- In this paper, the text feature dimensions reduction and text categorization rule extraction using decision tree are investigated, and some new KNN algorithms are represented for text categorization. 本文主要研究了文本特征空间的降维问题、利用决策树抽取文本分类规则问题和改进KNN算法以适应文本分类问题。
- feature dimension reduction 特征降维
- Thirdly, standardization and dimension reduction are performed to classify signals in each signal subspace. 再次，对每一个子空间信号特征向量进行标准化、降维和分类；
- Meanwhile, combined with the sorts distributing, it once more reduced the feature dimension. 同时结合特征的类别分布进行了二次特征降维。
- 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。
- The results show that the proposed method used for QAR data has a good effect of dimension reduction and high rate of correct classification. 实验结果显示：把该方法用于QAR数据具有良好的降维效果和高分类正确率。
- The paper analyses the two methods in detail and deduces the relation of PCA to SVD when they are used in dimension reduction. 在模式识别的过程中,进行特征的选择有两个目标:丢弃一些对分类贡献不大的特征;
- The dimension reduction of ICA is the fundamental factor in the recognition rate and speed improvement and the modified SVM method gives an amazing result in this area. 修正SVM方法是对原有SVM方法的一个改进，借助于特征压缩后的数据集，识别效率有了很大的改善。
- In pattern recognition and in image processing, Feature extraction is a special form of dimensionality reduction. 在模式识别和图像处理领域中，特征提取是一种特殊的维数降阶的形式。
- For the target recognition based on radar high-resolution range profile (HRRP), the removing of shift sensitivity and compressing of feature dimension have important meaning in realistic. 在基于雷达高分辨距离像(HRRP)的目标识别中，平移敏感性的消除及特征维数的压缩在实际应用中有着重要意义。
- 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。
- Time is sometimes called the fourth dimension. 时间有时被称为第四度空间。
- Comparing Dimension Reduction Methods of Text Feature Matrix 几种文本特征降维方法的比较分析
- In this paper, we analyze these peculiarities, and conduct experiments on a corpus of 1000 web page to contrasts three feature selection techniques for dimensionality reduction of the feature space. 本文分析了网页内部特征，并在1000篇网页规模语料岸的基础上，通过试验对比了三种特征选择方法对高维特征向量空间进行降维的效果。
- Domain-dictionary based text representation can enhance the ability of text feature expression and reduce the feature dimensionality. 基于领域词典的文本特征表示方法可以增强文本特征表示能力。
- A negative distortion method is applied to control dimensions within tolerances after weldment cooling by taking into account the dimension reduction due to welding seam shrink. 由于焊接冷却后焊缝收缩会使焊接后尺寸减小，采用反变形法能使焊接冷却后的尺寸控制在公差范围内。
- Based on the Neighborhood Preserving Embedding (NPE) algorithm, a novel dimensionality reduction method called ONPE is proposed. 摘要在邻域保护嵌入算法的基础上，提出了一种新的降维方法-正交邻域保护嵌入算法。
