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    Efficient online index construction for text databases

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    Author
    Lester, N; Moffat, A; Zobel, J
    Date
    2008-08-01
    Source Title
    ACM Transactions on Database Systems
    Publisher
    ASSOC COMPUTING MACHINERY
    University of Melbourne Author/s
    Moffat, Alistair; Zobel, Justin
    Affiliation
    Computer Science and Software Engineering
    Metadata
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    Document Type
    Journal Article
    Citations
    Lester, N., Moffat, A. & Zobel, J. (2008). Efficient online index construction for text databases. ACM TRANSACTIONS ON DATABASE SYSTEMS, 33 (3), https://doi.org/10.1145/1386118.1386125.
    Access Status
    This item is currently not available from this repository
    URI
    http://hdl.handle.net/11343/29901
    DOI
    10.1145/1386118.1386125
    Abstract
    <jats:p> Inverted index structures are a core element of current text retrieval systems. They can be constructed quickly using offline approaches, in which one or more passes are made over a static set of input data, and, at the completion of the process, an index is available for querying. However, there are search environments in which even a small delay in timeliness cannot be tolerated, and the index must always be queryable and up to date. Here we describe and analyze a <jats:italic>geometric partitioning</jats:italic> mechanism for online index construction that provides a range of tradeoffs between costs, and can be adapted to different balances of insertion and querying operations. Detailed experimental results are provided that show the extent of these tradeoffs, and that these new methods can yield substantial savings in online indexing costs. </jats:p>
    Keywords
    Information Systems

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