1176 search results - page 52 / 236 » Sparse reward processes |
140
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ICASSP
2009
IEEE
15 years 10 months ago
2009
IEEE
In previous work we introduced a new missing data imputation method for ASR, dubbed sparse imputation. We showed that the method is capable of maintaining good recognition accurac...
119
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ICASSP
2009
IEEE
15 years 10 months ago
2009
IEEE
Recently proposed l1-regularized maximum-likelihood optimization methods for learning sparse Markov networks result into convex problems that can be solved optimally and efficien...
122
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ICASSP
2008
IEEE
15 years 10 months ago
2008
IEEE
This paper analyzes the performance of the simple thresholding algorithm for sparse signal representations. In particular, in order to be more realistic we introduce a new probabi...
142
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ICA
2007
Springer
15 years 10 months ago
2007
Springer
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...
156
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DAGM
2007
Springer
15 years 7 months ago
2007
Springer
Cascades of classifiers constitute an important architecture for fast object detection. While boosting of simple (weak) classifiers provides an established framework, the design of...