id: 05930632
dt: a
an: 05930632
au: Wei, Qingting
ti: A query-friendly compression for GML documents.
so: Xu, Jianliang (ed.) et al., Database systems for adanced applications. 16th
    international conference, DASFAA 2011, international workshops: GDB,
    SIM3, FlashDB, SNSMW, DaMEN, DQIS. Hong Kong, China, April 22‒25,
    2011. Proceedings. Berlin: Springer (ISBN 978-3-642-20243-8/pbk).
    Lecture Notes in Computer Science 6637, 77-88 (2011).
py: 2011
pu: Berlin: Springer
la: EN
cc: 
ut: GML; compression; query; model; algorithm
ci: 
li: doi:10.1007/978-3-642-20244-5_8
ab: Summary: Geography Markup Language (GML) has become a standard encoding
    format for exchanging geographic data among heterogeneous Geographic
    Information System (GIS) applications. Whereas, the iteration of
    document structure and the textual expression of geographic data often
    cause the huge size of GML documents. In this paper, a query-friendly
    GML compression method is proposed, where the GML documents in SAX
    document parsing are transformed to a compact representation
    encompassing an event dictionary, the events hierarchy in balanced
    parentheses, a binary event wavelet tree and the document content
    blocks before compressed using a general compression utility. The
    proposed compression method supports direct path queries and spatial
    queries over the compressed files without the requirement of a full
    decompression. The compression model, the query resolution process and
    the compression algorithm are detailed in this paper, though the
    presentation is a preliminary investigation and it remains to carry out
    experiments to validate the proposed compression method on real GML
    documents.
rv: