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|Title:||Extending NMF to blindly separate linear-quadratic mixtures of uncorrelated sources|
Duarte, Leonardo T.
|Abstract:||This paper proposes a new constrained method, based on non-negative matrix factorization, for blindly separating linear-quadratic (LQ) mixtures of mutually uncorrelated source signals when the sources and mixing parameters are all non-negative. The uncorrelatedness of the sources is used as a regularization term in the cost function. The main advantage of exploiting uncorrelatedness in this manner is that the inversion of the mixing model, which is a difficult task in the case of determined LQ mixtures, is not required, contrary to the classical LQ methods based on independent component analysis. Experimental results using artificial data and real-world chemical data confirm the effectiveness of our method.|
|Subject:||Separação cega de fontes|
|Editor:||Institute of Electrical and Electronics Engineers|
|Appears in Collections:||FCA - Artigos e Outros Documentos|
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