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#asymmetric_numeral_systems

Asymmetric numeral systems

Entropy coding methods

Asymmetric numeral systems (ANS) is a family of entropy encoding methods introduced by Jarosław (Jarek) Duda from Jagiellonian University, used in data compression since 2014 due to improved performance compared to previous methods. ANS combines the compression ratio of arithmetic coding, with a processing cost similar to that of Huffman coding. In the tabled ANS (tANS) variant, this is achieved by constructing a finite-state machine to operate on a large alphabet without using multiplication.

Wed 31st

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Asymmetric numeral systems Non-standard positional numeral systems Numeral system Jarosław Duda (computer scientist) List of numeral systems Arithmetic coding Entropy coding Roman numerals Alphabetic numeral system Hindu–Arabic numeral system
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