Asymmetric numeral systems
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 previously used methods, being up to 30 times faster. ANS combines the compression ratio of arithmetic coding (which uses a nearly accurate probability distribution), 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.
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ANSArithmetic codingAsymmetric Numeral SystemsCRAM (file format)Combinatorial number systemCompression of Genomic Sequencing DataCriticism of GoogleEntropy encodingFSEFinite State EntropyHuffman codingJPEG XLLZFSEList of archive formatsList of numeral systemsLossless compressionRANSRange encodingTANSTimeline of Polish science and technologyTimeline of information theoryZipf's lawZstandard
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Asymmetric numeral systems
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 previously used methods, being up to 30 times faster. ANS combines the compression ratio of arithmetic coding (which uses a nearly accurate probability distribution), 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.
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Asymmetric numeral systems (AN ...... bits to or from the bitstream.
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Asymmetric numeral systems (AN ...... without using multiplication.
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Asymmetric numeral systems
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