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Computer Software
Vol. 30 (2013) No. 3 p. 3_163-3_179

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http://doi.org/10.11309/jssst.30.3_163

  • Abstracts

An abstract numeration system (ANS) is a numeration system that provides a one-to-one correspondence between the natural numbers and a regular language. In this paper, we define an ANS-based compression as an extension of this correspondence. In addition, we show the following results: (1) an average compression ratio is computable from a language, (2) an ANS-based compression runs in sublinear time with respect to the length of the input string, and (3) an ANS-based compression can be extended to block-based compression using a factorial language.

Copyright © 2013 Japan Society for Software Science and Technology

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