Michael J. Kurtz

  1. The Bibliometric Properties of Article Readership Information.

    Authors: Michael J. Kurtz, Guenther Eichhorn, Alberto Accomazzi, Carolyn S. Grant, Stephen S. Murray, Markus Demleitner, Nathalie Martimbeau, Barbara Elwell
    Subjects: Digital Libraries
    Abstract

    The NASA Astrophysics Data System (ADS), along with astronomy's journals and
    data centers (a collaboration dubbed URANIA), has developed a distributed
    on-line digital library which has become the dominant means by which
    astronomers search, access and read their technical literature. Digital
    libraries such as the NASA Astrophysics Data System permit the easy
    accumulation of a new type of bibliometric measure, the number of electronic
    accesses (``reads'') of individual articles. We explore various aspects of this
    new measure.

  2. Worldwide Use and Impact of the NASA Astrophysics Data System Digital Library.

    Authors: Michael J. Kurtz, Guenther Eichhorn, Alberto Accomazzi, Stephen S. Murray, Carolyn Grant, Markus Demleitner
    Subjects: Digital Libraries
    Abstract

    By combining data from the text, citation, and reference databases with data
    from the ADS readership logs we have been able to create Second Order
    Bibliometric Operators, a customizable class of collaborative filters which
    permits substantially improved accuracy in literature queries.

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