To verify efficiency of the new feature selection approach and improved TF-IDF formula, a multi-set of experiments base on the Chinese text categorization test system platform have been taken.
本文在中文文本分类实验平台上，通过多组对比实验来考察本文提出的新的特征提取方法和改进的TF-IDF方法的有效性。
Different features have different contribution to saliency, so a new approach for salient region detection with automatic feature selection and weighting is proposed.
不同的特征对视觉显著性的贡献是不同的，为此提出一种能够自动进行特征选择和加权的图像显著区域检测方法。
Taking community structure as measurement index for feature selection, a new feature selection measure approach based on modularity coefficient community structure is proposed.
利用网络社区模块结构作为特征选择的度量指标，给出了一种基于全局拓扑结构的特征选择性能评价方法。
Extended approach three: a hierarchical reduction approach is imported, which is based on the combination of statistical feature selection and linear discriminant analysis.
拓展算法三：引入统计筛选和线性判别分析相结合的分层递阶约简算法。
Extended approach three: a hierarchical reduction approach is imported, which is based on the combination of statistical feature selection and linear discriminant analysis.
拓展算法三：引入统计筛选和线性判别分析相结合的分层递阶约简算法。
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