Extended sparse nonnegative matrix factorization

被引:0
|
作者
Stadlthanner, K [1 ]
Theis, FJ
Puntonet, CG
Lang, EW
机构
[1] Univ Regensburg, Inst Biophys, D-93040 Regensburg, Germany
[2] Univ Granada, Dept Arq & Tec Comp, E-18071 Granada, Spain
关键词
D O I
暂无
中图分类号
TP18 [人工智能理论];
学科分类号
081104 ; 0812 ; 0835 ; 1405 ;
摘要
In sparse nonnegative component analysis (sparse NMF) a given dataset is decomposed into a mixing matrix and a feature data set, which are both nonnegative and fulfill certain sparsity constraints. In this paper, we extend the sparse NMF algorithm to allow for varying sparsity in each feature and discuss the uniqueness of an involved projection step. Furthermore, the eligibility of the extended sparse NMF algorithm for blind source separation is investigated.
引用
收藏
页码:249 / 256
页数:8
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