7 search results - page 2 / 2 » Block-Iterative Algorithms for Non-negative Matrix Approxima... |
JMLR
2010
13 years 4 months ago
2010
Sparse coding—that is, modelling data vectors as sparse linear combinations of basis elements—is widely used in machine learning, neuroscience, signal processing, and statisti...
JMLR
2008
13 years 5 months ago
2008
We study a generative model in which hidden causes combine competitively to produce observations. Multiple active causes combine to determine the value of an observed variable thr...