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In information theory and coding theory, linear programming decoding (LP decoding) is a decoding method which uses concepts from linear programming (LP) theory to solve decoding problems. This approach was first used by Jon Feldman et al.^[1] They showed how the LP can be used to decodes block codes.

The basic idea behind LP decoding is to first represent the maximum likelihood decoding of a linear code as an integer linear program, and then relax the integrality constraints on the variables into linear inequalities.

References

^ "Using linear programming to Decode Binary linear codes," J. Feldman, M.J. Wainwright and D.R. Karger, IEEE Transactions on Information Theory, 51:954–972, March 2005.

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[feldman-1] "Using linear programming to Decode Binary linear codes," J. Feldman, M.J. Wainwright and D.R. Karger, IEEE Transactions on Information Theory, 51:954–972, March 2005.

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			{{Short description\|Decoding method}}
	In [[information theory]] and [[coding theory]], '''linear programming decoding (LP decoding)''' is a [[Decoding methods\|decoding]] method which uses concepts from [[linear programming]] (LP) theory to solve decoding problems. This approach was first used by Jon Feldman ''et al.''<ref name = feldman> "Using linear programming to Decode Binary linear codes," J. Feldman, M.J. Wainwright and D.R. Karger, IEEE Transactions on Information Theory, 51:954–972, March 2005.</ref> They showed how the LP can be used to decodes block codes.		In [[information theory]] and [[coding theory]], '''linear programming decoding (LP decoding)''' is a [[Decoding methods\|decoding]] method which uses concepts from [[linear programming]] (LP) theory to solve decoding problems. This approach was first used by Jon Feldman ''et al.''<ref name = feldman> "Using linear programming to Decode Binary linear codes," J. Feldman, M.J. Wainwright and D.R. Karger, IEEE Transactions on Information Theory, 51:954–972, March 2005.</ref> They showed how the LP can be used to decodes block codes.