Zhang, Lingsong; Lu, Shu; Marron, J.S. - In: Computational Statistics & Data Analysis 88 (2015) C, pp. 100-110
Motivated by the analysis of nonnegative data objects, a novel Nested Nonnegative Cone Analysis (NNCA) approach is proposed to overcome some drawbacks of existing methods. The application of traditional PCA/SVD method to nonnegative data often cause the approximation matrix leave the nonnegative...