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One of MacWilliams' significant achievements was her encyclopedic book, The Theory of Error-Correcting Codes, which she wrote in collaboration with Neil Sloane [1] [8] and was published in 1977. The book is stated as being "Perhaps the most comprehensive text on the algebraic and combinatorial properties of error-correcting codes, and of ...
Low-density parity-check (LDPC) codes are a class of highly efficient linear block codes made from many single parity check (SPC) codes. They can provide performance very close to the channel capacity (the theoretical maximum) using an iterated soft-decision decoding approach, at linear time complexity in terms of their block length.
A special case of constant weight codes are the one-of-N codes, that encode bits in a code-word of bits. The one-of-two code uses the code words 01 and 10 to encode the bits '0' and '1'. A one-of-four code can use the words 0001, 0010, 0100, 1000 in order to encode two bits 00, 01, 10, and 11.
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New Holland is a global full-line agricultural machinery manufacturer founded in New Holland, Pennsylvania, and now based in Turin, Italy.New Holland's products include tractors, combine harvesters, balers, forage harvesters, self-propelled sprayers, haying tools, seeding equipment, hobby tractors, utility vehicles and implements, and grape harvesters.
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New Holland Construction was founded in 1895 in New Holland, Pennsylvania; in 2005 New Holland Construction Brand was created with a global full-line product offering. Since 1999, New Holland is a brand of CNH , which was demerged from Fiat Group to Fiat Industrial at the start of 2011.