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电子学报  2013 

核稀疏保持投影及生物特征识别应用

DOI: 10.3969/j.issn.0372-2112.2013.04.003, PP. 639-645

Keywords: 稀疏表示,邻接矩阵,稀疏保持投影,核方法

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Abstract:

稀疏表示系数包含较强的鉴别信息,稀疏保持投影(SparsityPreservingProjections,SPP)利用稀疏表示系数进行特征提取.本文通过核方法获取高维特征空间的核稀疏表示系数,并利用核稀疏表示系数构造邻接矩阵,提出核稀疏保持投影(KernelSparsityPreservingProjections,KSPP).核稀疏表示系数比稀疏表示系数包含更强的鉴别信息,因此KSPP可以比SPP提取更有效的鉴别特征.在多个数据库上的生物特征识别实验,KSPP都取得了不错的实验结果.

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