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» On Shift-Invariant Sparse Coding
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111
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IJON
2006
189views more  IJON 2006»
14 years 9 months ago
Storing and restoring visual input with collaborative rank coding and associative memory
Associative memory in cortical circuits has been held as a major mechanism for content-addressable memory. Hebbian synapses implement associative memory efficiently when storing s...
Martin Rehn, Friedrich T. Sommer
ICASSP
2011
IEEE
14 years 1 months ago
Collaborative sources identification in mixed signals via hierarchical sparse modeling
A collaborative framework for detecting the different sources in mixed signals is presented in this paper. The approach is based on CHiLasso, a convex collaborative hierarchical s...
Pablo Sprechmann, Ignacio Ramírez, Pablo Ca...
63
Voted
JMLR
2010
107views more  JMLR 2010»
14 years 4 months ago
Error-Correcting Ouput Codes Library
In this paper, we present an open source Error-Correcting Output Codes (ECOC) library. The ECOC framework is a powerful tool to deal with multi-class categorization problems. This...
Sergio Escalera, Oriol Pujol, Petia Radeva
79
Voted
SIAMSC
2010
215views more  SIAMSC 2010»
14 years 8 months ago
A Fast Algorithm for Sparse Reconstruction Based on Shrinkage, Subspace Optimization, and Continuation
We propose a fast algorithm for solving the ℓ1-regularized minimization problem minx∈Rn µ x 1 + Ax − b 2 2 for recovering sparse solutions to an undetermined system of linea...
Zaiwen Wen, Wotao Yin, Donald Goldfarb, Yin Zhang
SPIRE
2009
Springer
15 years 4 months ago
Directly Addressable Variable-Length Codes
We introduce a symbol reordering technique that implicitly synchronizes variable-length codes, such that it is possible to directly access the i-th codeword without need of any sam...
Nieves R. Brisaboa, Susana Ladra, Gonzalo Navarro