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Exploring Metadata Providers Reliability and Update Behavior

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Research and Advanced Technology for Digital Libraries (TPDL 2016)

Part of the book series: Lecture Notes in Computer Science ((LNISA,volume 9819))

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Abstract

Metadata harvesting is used very often, to incorporate the resources of small providers to big collections. But how solid is this procedure? Are the metadata providers reliable? How often are the published metadata updated? Are the updates mostly for maintenance (corrections) or for improving the metadata? Such questions can be used to better predict the quality of the harvesting. The huge amount of harvested information and the many sources and metadata specialists involved makes prompt for answers by examining the actual metadata, rather than asking about opinions and practices. We examine such questions by processing appropriately collected information directly from the metadata providers. We harvested records from 2138 sources in 17 rounds over a 3-year period, and study them to explore the behaviour of the providers. We found that some providers are often not available. The number of metadata providers failing to respond is constantly increasing by the time. Additionally, the record length is slightly decreasing, indicating that the records are updated mostly for maintenance/corrections.

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Notes

  1. 1.

    http://www.opendoar.org.

  2. 2.

    http://www.oclc.org/oaister.en.html.

  3. 3.

    https://www.openarchives.org/Register/BrowseSites.

  4. 4.

    https://pypi.python.org/pypi/pyoai.

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Authors and Affiliations

  1. Laboratory on Digital Libraries and Electronic Publishing, Department of Archive, Library and Museum Sciences, Ionian University, 72, Ioannou Theotoki Str., 49100, Corfu, Greece

    Sarantos Kapidakis

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  1. Sarantos Kapidakis
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Correspondence to Sarantos Kapidakis .

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Editors and Affiliations

  1. Universität Duisburg-Essen , Duisburg, Germany

    Norbert Fuhr

  2. Hungarian Academy of Science , Budapest, Hungary

    László Kovács

  3. Leibniz Universität Hannover , Hannover, Germany

    Thomas Risse

  4. Leibniz Universität Hannover , Hannover, Germany

    Wolfgang Nejdl

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© 2016 Springer International Publishing Switzerland

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Kapidakis, S. (2016). Exploring Metadata Providers Reliability and Update Behavior. In: Fuhr, N., Kovács, L., Risse, T., Nejdl, W. (eds) Research and Advanced Technology for Digital Libraries. TPDL 2016. Lecture Notes in Computer Science(), vol 9819. Springer, Cham. https://doi.org/10.1007/978-3-319-43997-6_36

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  • DOI: https://doi.org/10.1007/978-3-319-43997-6_36

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  • Publisher Name: Springer, Cham

  • Print ISBN: 978-3-319-43996-9

  • Online ISBN: 978-3-319-43997-6

  • eBook Packages: Computer ScienceComputer Science (R0)

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