Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Grammar Compression By Induced Suffix Sorting   A grammar compression algorithm, called GCIS, is introduced in this work.
GCIS is based on the induced suffix sorting algorithm SAIS, presented by Nong
et al. in 2009. The proposed solution builds on the factorization performed by
SAIS during suffix sorting. A context-free grammar is used to replace factors
by non-terminals. The algorithm is then recursively applied on the shorter
sequence of non-terminals. The resulting grammar is encoded by exploiting some
redundancies, such as common prefixes between right-hands of rules, sorted
according to SAIS. GCIS excels for its low space and time required for
compression while obtaining competitive compression ratios. Our experiments on
regular and repetitive, moderate and very large texts, show that GCIS stands as
a very convenient choice compared to well-known compressors such as Gzip,
7-Zip, and RePair, the gold standard in grammar compression. In exchange, GCIS
is slow at decompressing. Yet, grammar compressors are more convenient than
Lempel-Ziv compressors in that one can access text substrings directly in
compressed form, without ever decompressing the text. We demonstrate that GCIS
is an excellent candidate for this scenario because it shows to be competitive
among its RePair based alternatives. We also show, how GCIS relation with SAIS
makes it a good intermediate structure to build the suffix array and the LCP
array during decompression of the text.

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The categories of this paper are: nucl-th
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The categories of this paper are: dg-ga
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The categories of this paper are: q-bio
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The categories of this paper are: comp-gas
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The categories of this paper are: cond-mat
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The categories of this paper are: chem-ph
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The categories of this paper are: astro-ph
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The categories of this paper are: ao-sci
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The categories of this paper are: funct-an
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The categories of this paper are: hep-th
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The categories of this paper are: gr-qc
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The categories of this paper are: q-alg
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The categories of this paper are: math-ph
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The categories of this paper are: hep-lat
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The categories of this paper are: quant-ph
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The categories of this paper are: patt-sol