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LZ77 and LZ78

LZ77 and LZ78 are the two lossless data compression algorithms published in papers by Abraham Lempel and Jacob Ziv in 1977 and 1978. They are also known as Lempel-Ziv 1 (LZ1) and Lempel-Ziv 2 (LZ2) respectively. These two algorithms form the basis for many variations including LZW, LZSS, LZMA and others. Besides their academic influence, these algorithms…

LZ77, Overview & Theoretical efficiency

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Theoretical efficiency

LZ77

LZW

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LZ77 and LZ78

Nodes31
Edges30
Triples0
Avg. degree1.94
Density0.064516
Components1

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dictionary data input algorithm compression algorithms length characters lz77 output distance entry lz78 sequence window lzw match pair next token

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