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TIT
2008
81views more  TIT 2008»
13 years 9 months ago
Lagrangian Vector Quantization With Combined Entropy and Codebook Size Constraints
Abstract--In this paper, the Lagrangian formulation of variablerate vector quantization is extended to quantization with simultaneous constraints on entropy and codebook size, incl...
Robert M. Gray, Tamás Linder, John T. Gill ...
INFORMATICALT
2011
126views more  INFORMATICALT 2011»
13 years 4 months ago
Quality of Quantization and Visualization of Vectors Obtained by Neural Gas and Self-Organizing Map
Abstract. In this paper, the quality of quantization and visualization of vectors, obtained by vector quantization methods (self-organizing map and neural gas), is investigated. A ...
Olga Kurasova, Alma Molyte
DCC
2010
IEEE
14 years 3 months ago
Modeling the Quantization Staircase Function
Quantization plays a central role in data compression. In speech systems, vector quantizers are used to compress speech parameters. In video systems, scalar quantizers are used to...
Salman Aslam, Aaron F. Bobick, Christopher F. Barn...
TIT
2002
60views more  TIT 2002»
13 years 9 months ago
A Zador-like formula for quantizers based on periodic tilings
We consider Zador's asymptotic formula for the distortion-rate function for a variable-rate vector quantizer in the high-rate case. This formula involves the differential ent...
N. J. A. Sloane, Vinay A. Vaishampayan
DCC
2011
IEEE
13 years 4 months ago
Collaboration in Distributed Hypothesis Testing with Quantized Prior Probabilities
The effect of quantization of prior probabilities in a collection of distributed Bayesian binary hypothesis testing problems over which the priors themselves vary is studied. In ...
Joong Bum Rhim, Lav R. Varshney, Vivek K. Goyal