Sciweavers

ICA
2007
Springer
13 years 10 months ago
On Separation of Signal Sources Using Kernel Estimates of Probability Densities
The discussion in this paper revolves around the notion of separation problems. The latter can be thought of as a unifying concept which includes a variety of important problems in...
Oleg V. Michailovich, Douglas Wiens
ICA
2007
Springer
13 years 10 months ago
Robust Independent Component Analysis Using Quadratic Negentropy
We present a robust algorithm for independent component analysis that uses the sum of marginal quadratic negentropies as a dependence measure. It can handle arbitrary source densit...
Jaehyung Lee, Taesu Kim, Soo-Young Lee
ICA
2007
Springer
13 years 10 months ago
Blind Instantaneous Noisy Mixture Separation with Best Interference-Plus-Noise Rejection
Abstract. In this paper, a variant of the well known algorithm FastICA is proposed to be used for blind source separation in off-line (block processing) setup and a noisy environm...
Zbynek Koldovský, Petr Tichavský
ICA
2007
Springer
13 years 10 months ago
Signal Separation by Integrating Adaptive Beamforming with Blind Deconvolution
In this paper, we present a broadband two-microphone blind spatial separation technique by efficiently combining adaptive beamforming (ABF) with multichannel blind deconvolution (M...
Kostas Kokkinakis, Philipos C. Loizou
ICA
2007
Springer
13 years 10 months ago
Optimization on the Orthogonal Group for Independent Component Analysis
Abstract. This paper derives a new algorithm that performs independent component analysis (ICA) by optimizing the contrast function of the RADICAL algorithm. The core idea of the p...
Michel Journée, Pierre-Antoine Absil, Rodol...
ICA
2007
Springer
13 years 10 months ago
The Role of High Frequencies in Convolutive Blind Source Separation of Speech Signals
Abstract. In this paper, we investigate the importance of the high frequencies in the problem of convolutive blind source separation (BSS) of speech signals. In particular, we focu...
Maria G. Jafari, Mark D. Plumbley
ICA
2007
Springer
13 years 10 months ago
Independent Subspace Analysis Is Unique, Given Irreducibility
Independent Subspace Analysis (ISA) is a generalization of ICA. It tries to find a basis in which a given random vector can be decomposed into groups of mutually independent rando...
Harold W. Gutch, Fabian J. Theis
ICA
2007
Springer
13 years 10 months ago
Two Improved Sparse Decomposition Methods for Blind Source Separation
In underdetermined blind source separation problems, it is common practice to exploit the underlying sparsity of the sources for demixing. In this work, we propose two sparse decom...
B. Vikrham Gowreesunker, Ahmed H. Tewfik
ICA
2007
Springer
13 years 10 months ago
Identifiability Conditions and Subspace Clustering in Sparse BSS
Pando G. Georgiev, Fabian J. Theis, Anca L. Ralesc...
ICA
2007
Springer
13 years 10 months ago
Pivot Selection Strategies in Jacobi Joint Block-Diagonalization
A common problem in independent component analysis after prewhitening is to optimize some contrast on the orthogonal or unitary group. A popular approach is to optimize the contras...
Cédric Févotte, Fabian J. Theis