Random Access to Grammar-Compressed Strings and Trees
Downloaded from orbit.dtu.dk on: Oct 04, 2021 Random Access to Grammar-Compressed Strings and Trees Bille, Philip; Landau, Gad M.; Raman, Rajeev; Sadakane, Kunihiko; Satti, Srinivasa Rao; Weimann, Oren Published in: SIAM Journal on Computing Link to article, DOI: 10.1137/130936889 Publication date: 2015 Document Version Peer reviewed version Link back to DTU Orbit Citation (APA): Bille, P., Landau, G. M., Raman, R., Sadakane, K., Satti, S. R., & Weimann, O. (2015). Random Access to Grammar-Compressed Strings and Trees. SIAM Journal on Computing, 44(3), 513-539. https://doi.org/10.1137/130936889 General rights Copyright and moral rights for the publications made accessible in the public portal are retained by the authors and/or other copyright owners and it is a condition of accessing publications that users recognise and abide by the legal requirements associated with these rights. Users may download and print one copy of any publication from the public portal for the purpose of private study or research. You may not further distribute the material or use it for any profit-making activity or commercial gain You may freely distribute the URL identifying the publication in the public portal If you believe that this document breaches copyright please contact us providing details, and we will remove access to the work immediately and investigate your claim. RANDOM ACCESS TO GRAMMAR-COMPRESSED STRINGS AND TREES∗ PHILIP BILLE y , GAD M. LANDAU z , RAJEEV RAMAN x , KUNIHIKO SADAKANE {, SRINIVASA RAO SATTI k, AND OREN WEIMANN ∗∗ Abstract. Grammar based compression, where one replaces a long string by a small context-free grammar that generates the string, is a simple and powerful paradigm that captures (sometimes with slight reduction in efficiency) many of the popular compression schemes, including the Lempel-Ziv family, Run-Length Encoding, Byte-Pair Encoding, Sequitur, and Re-Pair.
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