The relative efficiency of data compression by LZW and LZSS

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The relative efficiency of data compression by LZW and LZSS

We explore the use of the LZW and LZSS data compression methods. These methods or some versions of them are very common in use of compressing different types of data. Even though on average LZSS gives better compression results, we determine the case in which the LZW perform best and when the compression efficiency gap between the LZW algorithm and its LZSS counterpart is the largest.

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In this paper, we present an algorithm and provide design improvements needed to port the serial Lempel–Ziv–Storer–Szymanski (LZSS), lossless data compression algorithm, to a parallelized version suitable for general purpose graphic processor units (GPGPU), specifically for NVIDIA’s CUDA Framework. The twomain stages of the algorithm, substringmatching and encoding, are studied in detail to fit...

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ژورنال

عنوان ژورنال: Data Science Journal

سال: 2007

ISSN: 1683-1470

DOI: 10.2481/dsj.6.1