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ICMCS
2009
IEEE
161views Multimedia» more  ICMCS 2009»
13 years 3 months ago
Novel VQ with constraints on the quantization error distribution
In this paper, we motivate and introduce a novel vector quantization (VQ) scheme for distributing the quantization error among the quantized features of a continuous feature vecto...
Joachim Schenk, Frank Wallhoff, Gerhard Rigoll
ICASSP
2009
IEEE
14 years 7 days ago
Voronoi cell shaping for feature selection with discrete HMMs
In this paper, we introduce a novel vector quantization (VQ) scheme for distributing the quantization error equally among the quantized dimensions. Afterwards, the proposed VQ sch...
Joachim Schenk, Gerhard Rigoll
ESANN
2003
13 years 6 months ago
Robust Vector Quantization for Burst Error Channels Using Genetic Algorithm
This paper presents a novel vector quantizer (VQ) design algorithm for a burst error channel (BEC). The algorithm minimizes the average distortion when the BEC is in normal state o...
Wen-Jyi Hwang, Chien-Min Ou, Chin-Ming Yeh
VTC
2006
IEEE
116views Communications» more  VTC 2006»
13 years 11 months ago
Distributed Estimation in a Power Constrained Sensor Network
— This paper derives the optimum non-uniform quantization scheme for a distributed estimation problem based on noisy observations in a wireless sensor network. The optimal quanti...
Visvakumar Aravinthan, Sudharman K. Jayaweera, Kos...
DCC
2007
IEEE
14 years 5 months ago
Joint Optimization of Distributed Broadcast Quantization Systems for Classification
We develop a simulated annealing technique to jointly optimize a distributed quantization structure meant to maximize the asymptotic error exponent of a downstream classifier or d...
Michael A. Lexa, Don H. Johnson