58 search results - page 4 / 12 » Sparse Coding with Invariance Constraints |
CVPR
2012
IEEE
11 years 10 months ago
2012
IEEE
A greedy-based approach to learn a compact and discriminative dictionary for sparse representation is presented. We propose an objective function consisting of two components: ent...
CORR
2010
Springer
13 years 5 months ago
2010
Springer
Sparse superposition codes are developed for the additive white Gaussian noise channel with average codeword power constraint. Codewords are linear combinations of subsets of vecto...
CVPR
2011
IEEE
13 years 3 months ago
2011
IEEE
Real-time unusual event detection in video stream has been a difficult challenge due to the lack of sufficient training information, volatility of the definitions for both norm...
GLOBECOM
2009
IEEE
14 years 2 months ago
2009
IEEE
—One of the key factors underlying the popularity of Low-density parity-check (LDPC) code is its iterative decoding algorithm that is amenable to efficient hardware implementati...
SIGSOFT
2007
ACM
14 years 8 months ago
2007
ACM
We present an approach for checking code against rich specifications, based on existing work that consists of encoding the program in a relational logic and using a constraint sol...