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arXiv · 1107.3019

Computing q-gram Frequencies on Collage Systems

Keisuke Goto·Hideo Bannai·Shunsuke Inenaga·Masayuki Takeda
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Abstract

Collage systems are a general framework for representing outputs of various text compression algorithms. We consider the all $q$-gram frequency problem on compressed string represented as a collage system, and present an $O((q+h\log n)n)$-time $O(qn)$-space algorithm for calculating the frequencies for all $q$-grams that occur in the string. Here, $n$ and $h$ are respectively the size and height of the collage system.

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Keisuke Goto, Hideo Bannai, Shunsuke Inenaga, Masayuki Takeda. 2011-07-15. Computing q-gram Frequencies on Collage Systems. https://arxiv.org/abs/1107.3019

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