Lien entre Transformée de Burrows-Wheeler (BWT) et BWT étendue (XBW) via l'automate d'Aho-Corasick : applications en compression par encodage des longueurs
In: Leibniz International Proceedings in Informatics (LIPIcs) 30th Annual Symposium on Combinatorial Pattern Matching (CPM) 30th Annual Symposium on Combinatorial Pattern Matching (CPM), University of Pisa, Jun 2019, Pise, Italy. pp.24:1--24:20, ⟨10.4230/LIPIcs.CPM.2019.24⟩ CPM 2019-30th Annual Symposium on Combinatorial Pattern Matching CPM 2019-30th Annual Symposium on Combinatorial Pattern Matching, University of Pisa, Jun 2019, Pise, Italy. pp.24:1--24:20, ⟨10.4230/LIPIcs.CPM.2019.24⟩; (2019)
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URN: urn:nbn:de:0030-drops-104955URL: http://drops.dagstuhl.de/opus/volltexte/2019/10495/ISBN ={978-3-95977-103-0},ISSN ={1868-8969},; International audience; The boom of genomic sequencing makes compression of sets of sequences inescapable. This underlies the need for multi-string indexing data structures that helps compressing the data. The most prominent example of such data structures is the Burrows-Wheeler Transform (BWT), a reversible permutation of a text that improves its compressibility. A similar data structure, the eXtended Burrows-Wheeler Transform (XBW), is able to index a tree labelled with alphabet symbols. A link between a multi-string BWT and the Aho-Corasick automaton has already been found and led to a way to build a XBW from a multi-string BWT. We exhibit a stronger link between a multi-string BWT and a XBW by using the order of the concatenation in the multi-string. This bijective link has several applications: first, it allows one to build one data structure from the other; second, it enables one to compute an ordering of the input strings that optimises a Run-Length measure (i.e., the compressibility) of the BWT or of the XBW.
| Titel: |
Lien entre Transformée de Burrows-Wheeler (BWT) et BWT étendue (XBW) via l'automate d'Aho-Corasick : applications en compression par encodage des longueurs
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| Autor/in / Beteiligte Person: | Cazaux, Bastien ; Rivals, Eric ; Pisanti, Nadia ; Pissis, Solon P. ; Department of Computer Science ; Méthodes et Algorithmes pour la Bioinformatique (MAB) ; Laboratoire d'Informatique de Robotique et de Microélectronique de Montpellier (LIRMM) ; Université de Montpellier (UM)-Centre National de la Recherche Scientifique (CNRS)-Université de Montpellier (UM)-Centre National de la Recherche Scientifique (CNRS) ; Institut de Biologie Computationnelle (IBC) ; Institut National de la Recherche Agronomique (INRA)-Institut National de Recherche en Informatique et en Automatique (Inria)-Université de Montpellier (UM)-Centre National de la Recherche Scientifique (CNRS) ; Support from the Institut de Biologie Computationnelle (ANR-11-BINF-0002).Eric Rivals: thanks the GEM Flagship project funded from Labex NUMEV (ANR-10-LABX-0020). ; University of Pisa ; ANR-11-BINF-0002,IBC,Institut de Biologie Computationnelle de Montpellier(2011) ; ANR-10-LABX-0020/10-LABX-0020,NUMEV,Digital and Hardware Solutions and Modeling for the Environement and Life Sciences(2010) ; ANR-11-BINF-0002,IBC,Institut de biologie Computationnelle(2011) ; ANR-10-LABX-0020,NUMEV,Digital and Hardware Solutions and Modeling for the Environement and Life Sciences(2010) ; Centre National de la Recherche Scientifique (CNRS)-Université de Montpellier (UM)-Centre National de la Recherche Scientifique (CNRS)-Université de Montpellier (UM) ; Université de Montpellier (UM)-Institut National de la Recherche Agronomique (INRA)-Institut National de Recherche en Informatique et en Automatique (Inria)-Centre National de la Recherche Scientifique (CNRS) |
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| Quelle: | Leibniz International Proceedings in Informatics (LIPIcs) 30th Annual Symposium on Combinatorial Pattern Matching (CPM) 30th Annual Symposium on Combinatorial Pattern Matching (CPM), University of Pisa, Jun 2019, Pise, Italy. pp.24:1--24:20, ⟨10.4230/LIPIcs.CPM.2019.24⟩ CPM 2019-30th Annual Symposium on Combinatorial Pattern Matching CPM 2019-30th Annual Symposium on Combinatorial Pattern Matching, University of Pisa, Jun 2019, Pise, Italy. pp.24:1--24:20, ⟨10.4230/LIPIcs.CPM.2019.24⟩; (2019) |
| Veröffentlichung: | Schloss Dagstuhl - Leibniz-Zentrum für Informatik, 2019 |
| Medientyp: | unknown |
| ISSN: | 1868-8969 (print) |
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