26 search results - page 1 / 6 » A Two-Layer ICA-Like Model Estimated by Score Matching |
NECO
2010
13 years 5 months ago
2010
We consider a hierarchical two-layer model of natural signals in which both layers are learned from the data. Estimation is accomplished by Score Matching, a recently proposed est...
ICANN
2007
Springer
14 years 1 months ago
2007
Springer
Abstract. Capturing regularities in high-dimensional data is an important problem in machine learning and signal processing. Here we present a statistical model that learns a nonli...
CSDA
2007
13 years 7 months ago
2007
Many probabilistic models are only defined up to a normalization constant. This makes maximum likelihood estimation of the model parameters very difficult. Typically, one then h...
AVBPA
2005
Springer
14 years 27 days ago
2005
Springer
A multimodal biometric system integrates information from multiple biometric sources to compensate for the limitations in performance of each individual biometric system. We propos...
ICPR
2008
IEEE
14 years 8 months ago
2008
IEEE
While using more biometric traits in multimodal biometric fusion can effectively increase the system robustness, often, the cost associated to adding additional systems is not con...