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Grammar-Based Compression

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Encyclopedia of Big Data Technologies

Synonyms

Dictionary-based compression; Graph grammars; Straight-line context-free tree grammars; Straight-line programs

Definitions

Grammar-based compression means to represent an object by a grammar that generates the object. For instance, a string can be represented by a context-free grammar that only generates the string, or, a node-labeled tree can be represented by a context-free tree grammar that generates only the tree. Two main questions are how to construct a small grammar for a given object and how to execute algorithms directly over grammars (without decompression).

Overview

This entry presents grammar-based compression of three types of finite objects: strings, trees, and (hyper)graphs, using context-free string, tree, and hyperedge-replacement grammars. The entry (Bannai 2016) focuses on grammar construction algorithms for strings. Here, only a few grammar construction algorithms are discussed. As a prototypical example of algorithms over grammars, the equivalence problem...

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Correspondence to Sebastian Maneth .

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© 2019 Springer Nature Switzerland AG

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Maneth, S. (2019). Grammar-Based Compression. In: Sakr, S., Zomaya, A.Y. (eds) Encyclopedia of Big Data Technologies. Springer, Cham. https://doi.org/10.1007/978-3-319-77525-8_56

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