Typical Performance of Irregular Low-Density Generator-Matrix Codes for Lossy Compression

Details Typical Performance of Irregular Low-Density Generator-Matrix Codes for Lossy Compression Typical Performance of Irregular Low-Density Generator-Matrix Codes for Lossy Compression

2008-10-29

arxiv.org/abs/0810.5308v2

J. Phys. A: Math. Theor., 42, 13, 135002 (2009)

Physics

Condensed Matter

Disordered Systems and Neural Networks

12 pages, 8 figures

Scientific paper

10.1088/1751-8113/42/13/135002

We evaluate typical performance of irregular low-density generator-matrix
(LDGM) codes, which is defined by sparse matrices with arbitrary irregular bit
degree distribution and arbitrary check degree distribution, for lossy
compression. We apply the replica method under one-step replica symmetry
breaking (1RSB) ansatz to this problem.

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