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prefix code

[ˈpriːfɪks koʊd]
nounpl: prefix codes
código de prefixo
1. A set of codewords in which no codeword is a prefix of any other codeword, used in data compression and encoding to ensure unambiguous decoding
Huffman coding produces a prefix code that allows efficient data compression.
A codificação de Huffman produz um código de prefixo que permite compressão de dados eficiente.
2. In information theory, a type of uniquely decodable code where decoding can be done immediately without lookahead
A prefix code guarantees that each message can be decoded uniquely and instantaneously.
Um código de prefixo garante que cada mensagem possa ser decodificada de forma única e instantânea.
Synonyms
prefix-free codeinstantaneous codecomma-free code
Antonyms
non-prefix codeambiguous code

Regional Variations

General Brazilian
código de prefixo
standard technical term used in computer science and information theory
Portugal
código sem prefixo
alternative phrasing emphasizing the prefix-free property
Technical contexts
código instantâneo
alternative term emphasizing instantaneous decodability

Related Idioms & Phrases

prefix-free property
uniquely decodable code
instantaneous decoding
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