Talk:Low-density parity-check code: Difference between revisions

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Capacity achieving?: thanks for the better introduction
"probabilities" in the LDPC matrix for syndrome computation???
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:Regarding randomness, I do not recall randomness being a central criterion in the definition of LDPC codes; in fact, you could very well construct low-density parity check matrices algebraically and deterministically, it's just that randomized constructions turn out to be superior.
:[[User:Nageh|Nageh]] ([[User talk:Nageh|talk]]) 09:14, 8 June 2009 (UTC)
 
== @ [[User:78.42.25.227]] ==
I am confused by your recent edit... In the parity-check matrix, there will be either 1's or 0's. The null space of the matrix defines the graph. I don't see why there should be "probabilities" in the matrix for syndrome computation. And syndrome computation tells you normally whether decoding was correct (syndrome is 0) or not (not 0). Please justify your edit (or anyone else), either on the talk page or as a reference, or I will revert your edit. Thanks, cheers, [[User:Nageh|Nageh]] ([[User talk:Nageh|talk]]) 18:14, 20 October 2009 (UTC)