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IJON
2008
92views more  IJON 2008»
13 years 7 months ago
Nonnegative matrix factorization with quadratic programming
Nonnegative Matrix Factorization (NMF) solves the following problem: find such nonnegative matrices A RI
Rafal Zdunek, Andrzej Cichocki
ESANN
2004
13 years 9 months ago
Linearization identification and an application to BSS using a SOM
The one-dimensional functional equation g(y(t)) = cg(z(t)) with known functions y and z and constant c is considered. The indeterminacies are calculated, and an algorithm for appro...
Fabian J. Theis, Elmar Wolfgang Lang
IJON
2002
128views more  IJON 2002»
13 years 7 months ago
Extraction of a source from multichannel data using sparse decomposition
It was discovered recently that sparse decomposition by signal dictionaries results in dramatic improvement of the qualities of blind source separation. We exploit sparse decompos...
Michael Zibulevsky, Yehoshua Y. Zeevi
TNN
2008
122views more  TNN 2008»
13 years 7 months ago
Two-Microphone Separation of Speech Mixtures
Separation of speech mixtures, often referred to as the cocktail party problem, has been studied for decades. In many source separation tasks, the separation method is limited by t...
Michael Syskind Pedersen, DeLiang Wang, Jan Larsen...
ISCAS
1999
IEEE
97views Hardware» more  ISCAS 1999»
13 years 11 months ago
Monaural separation of independent acoustical components
The problem of blindly separating signal mixtures with fewer mixture components than independent signal sources is mathematically ill-defined, and requires suitable prior informat...
Gert Cauwenberghs