Non-negative Matrix Factorization with Sparseness Constraints
The Journal of Machine Learning Research
Bayesian ranking of biochemical system models
Bioinformatics
Fast and robust fixed-point algorithms for independent component analysis
IEEE Transactions on Neural Networks
Bayesian inference of latent causes in gene regulatory dynamics
LVA/ICA'12 Proceedings of the 10th international conference on Latent Variable Analysis and Signal Separation
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We address the applicability of blind source separation (BSS) methods for the estimation of hidden influences in biological dynamic systems such as metabolic or gene regulatory networks. In simple processes obeying mass action kinetics, we find the emergence of linear mixture models. More complex situations as well as hidden influences in regulatory systems with sigmoidal input functions however lead to new classes of BSS problems.