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ICANN
2003
Springer
15 years 4 months ago
Sparse Coding with Invariance Constraints
We suggest a new approach to optimize the learning of sparse features under the constraints of explicit transformation symmetries imposed on the set of feature vectors. Given a set...
Heiko Wersing, Julian Eggert, Edgar Körner
ICASSP
2011
IEEE
14 years 2 months ago
Coding of unquantized spectrum sub-bands in superwideband audio codecs
We present several new methods for coding of spectrum coefficients in embedded audio codecs. In audio codecs, the spectrum is often divided in sub-bands, and quantized using a vec...
Vaclav Eksler, Milan Jelinek
ICIP
2001
IEEE
16 years 22 days ago
Application of the motion vector constraint to the regularized enhancement of compressed video
In this paper, we present a novel fidelity constraint for the image enhancement problem by exploiting the motion vectors of a compressed video bit-stream. These vectors establish ...
C. Andrew Segall, Aggelos K. Katsaggelos
TIT
2002
62views more  TIT 2002»
14 years 10 months ago
Design and performance of VQ-based hybrid digital-analog joint source-channel codes
A joint source
Mikael Skoglund, Nam Phamdo, Fady Alajaji
DEXA
2006
Springer
138views Database» more  DEXA 2006»
15 years 2 months ago
A Vector Space Model for Semantic Similarity Calculation and OWL Ontology Alignment
Ontology alignment (or matching) is the operation that takes two ontologies and produces a set of semantic correspondences (usually semantic similarities) between some elements of ...
Rubén Tous, Jaime Delgado