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The XQueC Project: Compressing and Querying XML Arion, Andrei Bonifati, Angela Manolescu, Ioana Pugliese, Andrea XML compression Data structures XQuery querying We outline in this paper the main contributions of the XQueC project. XQueC, namely XQuery processor and Compressor, is the first compression tool to seamlessly allow XQuery queries in the compressed domain. It includes a set of data structures, that basically shred the XML document into suitable chunks linked to each other, thus disagreeing with the ’homomorphic’ principle so far adopted in previous XML compressors. According to this principle, the compressed document is homomorphic to the original document. Moreover, in order to avoid the time consumption due to compressing and decompressing intermediate query results, XQueC applies ‘lazy’ decompression by issuing the queries directly in the compressed domain. Schloss Dagstuhl – Leibniz-Zentrum für Informatik Andrei Arion and Angela Bonifati and Ioana Manolescu and Andrea Pugliese 2008 Is Part Of Dagstuhl Seminar Proceedings, Volume 8261, Structure-Based Compression of Complex Massive Data (2008) InProceedings Text doc-type:ResearchArticle publishedVersion application/pdf doi:10.4230/DagSemProc.08261.12 urn:nbn:de:0030-drops-16919 https://drops.dagstuhl.de/entities/document/10.4230/DagSemProc.08261.12 eng https://creativecommons.org/licenses/by/4.0/legalcode