| 释义 |
code (codeword, coding theory) Data and information, which may take many forms, are often encoded for the purpose of storage and/or transmission. Abstractly, this involves turning source words into codewords, which are usually binary strings of 0s and 1s (see binary code). This may be done optimally to minimize the average length of a codeword (as with Huffman coding) or may involve redundancy as with error-correcting and error-detecting codes, used if the chance of transmission errors is not negligible. See block codes, entropy, Hamming distance, information theory, linear codes, Shannon's theorem.
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