| 数据降维方法分析与研究 * |
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| 引用本文： | 吴晓婷,闫德勤.数据降维方法分析与研究 *[J].计算机应用研究,2009,26(8):2832-2835. |
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| 作者姓名： | 吴晓婷 闫德勤 |
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| 作者单位： | 辽宁师范大学,计算机与信息技术学院,辽宁大连,116081 |
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| 基金项目： | 国家自然科学基金资助项目（60372071）;中国科学院自动化研究所复杂系统 与智能科学重点实验室开放课题基金资助项目（20070101）;辽宁省教育厅高等学校科学研究基金资助项目（2004C031） |
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| 摘 要： | 全面总结现有的数据降维方法，对具有代表性的降维方法进行了系统分类，详细地阐述了典型的降维 方法，并从算法的时间复杂度和优缺点两方面对这些算法进行了深入的分析和比较。最后提出了数据降维中仍 待解决的问题。
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| 关 键 词： | 数据降维 主成分分析 局部线性嵌入 等度规映射 计算复杂度 |
Analysis and research on method of data dimensionality reduction |
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| WU Xiao-ting,YAN De-qin.Analysis and research on method of data dimensionality reduction[J].Application Research of Computers,2009,26(8):2832-2835. |
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| Authors: | WU Xiao-ting YAN De-qin |
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| Affiliation: | School of Computer & Information Technology;Liaoning Normal University;Dalian Liaoning 116081;China |
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| Abstract: | This paper gave a comprehensive summarization of existing dimensionality reduction methods,as well as made a classification to the representative methods systematically and described some typical methods in detail.Furthermore,it deeply analyzed and compared these methods by their computational complexity and their advantages and disadvantages.Finally,it proposed the crucial problems which needed to be resolved in future work in data dimensionality reduction. |
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| Keywords: | data dimensionality reduction principal component analysis (PCA) locally linear embedding(LLE) isometric mapping computational complexity |
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