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» Differentiable Sparse Coding
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ICASSP
2010
IEEE
13 years 8 months ago
Hierarchical dictionary learning for invariant classification
Sparse representation theory has been increasingly used in the fields of signal processing and machine learning. The standard sparse models are not invariant to spatial transform...
Leah Bar, Guillermo Sapiro
PROPERTYTESTING
2010
13 years 6 months ago
Some Recent Results on Local Testing of Sparse Linear Codes
We study the local testability of linear codes. We first reformulate this question in the language of tolerant linearity testing under a non-uniform distribution. We then study th...
Swastik Kopparty, Shubhangi Saraf
VTC
2007
IEEE
103views Communications» more  VTC 2007»
14 years 2 months ago
Differential Super-Quasi-Orthogonal Space-Time Trellis Codes
Abstract—This paper proposes a new differential super-quasiorthogonal space-time trellis codes (SQOSTTC) with singlesymbol maximum-likelihood (ML) decoding. Firstly, a new joint ...
Jun Wang, Jing Qian, Junhui Dou, Shouyin Liu, Seon...
VTC
2008
IEEE
14 years 2 months ago
Irregular Precoder-Aided Differential Linear Dispersion Codes
—In this treatise, we propose a novel family of serial concatenated IrRegular Convolutional Coded (IRCC) IrRegular Precoded Differential Linear Dispersion Codes (IR-PDLDC). The i...
Nan Wu, Lajos Hanzo
VTC
2010
IEEE
129views Communications» more  VTC 2010»
13 years 6 months ago
A Near-Capacity Differentially Encoded Non-Coherent Adaptive Multiple-Symbol-Detection Aided Three-Stage Coded Scheme
Abstract—This paper presents an Irregular Distributed Hybrid Concatenated Differential (Ir-DHCD) coding scheme contrived for the relayaided differential decode-and-forward (DDF) ...
Li Wang, Lingkun Kong, Soon Xin Ng, Lajos Hanzo