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2011 10th IEEE/ACIS International Conference on Computer and Information Science
An Improvement in Lossless Data Compression via Substring Enumeration
Sanya, Hainan Island China
May 16-May 18
ISBN: 978-0-7695-4401-4
Dube ´ and Beaudoin proposed a new technique of loss less data compression called compression via sub string enumeration (CSE) in 2010. It has been indicated that the compression ratio of CSE achieves competitive performance for ones of the best PPM variants and BZIP2 from the viewpoint of experimental results. We refine the technique of CSE to reduce the candidate value of range to encode, and make the compression performance of our improvement clear analytically for some input strings, which have zero entropy rate. We show that the performance of compression ratio of the improved CSE never becomes worse than one of the original CSE for any source string in linear-time and linear-space complexity for the length of string.
Index Terms:
Lossless data compression, Compression via substring enumeration, compression ratio
Citation:
Ken-ichi Iwata, Mitsuharu Arimura, Yuki Shima, "An Improvement in Lossless Data Compression via Substring Enumeration," icis, pp.219-223, 2011 10th IEEE/ACIS International Conference on Computer and Information Science, 2011
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