Other useful sites
All David MacKay's papers can be found here,
and his textbook on information theory is here: Information Theory,
Inference, and Learning Algorithms.
Matrices `A', `Cn', and `G' are respectively
the parity check matrix (in list format),
the right hand square bit of A,
and the generator matrix for the code.
A mirror of Gallager's classic book is here,
Gallager, R. G., Low Density Parity Check Codes, Monograph, M.I.T. Press, 1963.
- IMA 1999 workshop on Codes, Systems
and Graphical Models,
- Rudi Urbanke's profile optimizer
S Y Chung's profile optimizer
- Igor's Matlab software for creating matrices, making
generators, etc. Uses its own format, but can convert from alist.
- Radford Neal's
software for low density
parity check codes written to test
out sparse encoding methods.
- makeH.tcl - tool to assist manual construction
of parity-check matrices.
The Inference Group is supported by the Gatsby Foundation
and by a partnership award from IBM Zurich Research Laboratory
David J.C. MacKay
Site last modified Tue Aug 19 18:43:54 BST 2008