prefix coding

英語（米国） (en-US) 英語（イギリス） (en-GB)

名詞

(computing theory) A coding system that uses (typically variable-length) codes that are distinguished by their "prefix property", which requires that there is no code word in the system that is a prefix (initial segment) of any other code word in the system.

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In data compression, prefix coding ensures that no code word is a prefix of another, which allows for instantaneous decoding.

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意味（1）

(computing theory) A coding system that uses (typically variable-length) codes that are distinguished by their "prefix property", which requires that there is no code word in the system that is a prefix (initial segment) of any other code word in the system.

A prefix coding can use a code with code words {9, 55}, as it has the prefix property. However, a code consisting of {9, 5, 59, 55} is not allowed, as 5 is a prefix of 59 and also of 55.

詳細

prefix codings （ plural ）