Dispersion Constraint Based Non-negative Sparse Coding Model


Based on advantages of basic non-negative sparse coding (NNSC) model, and considered the prior class constraint of image features, a novel NNSC model is discussed here. In this NNSC model, the sparseness criteria is selected as a two-parameter density estimation model and the dispersion ratio of within-class and between-class is used as the class constraint… (More)
DOI: 10.1007/s11063-015-9432-7


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