@article{Lerner2018Knowl-41516,
  year={2018},
  doi={10.1371/journal.pone.0190674},
  title={Knowledge categorization affects popularity and quality of Wikipedia articles},
  number={1},
  volume={13},
  journal={PLoS one},
  author={Lerner, Jürgen and Lomi, Alessandro},
  note={Article Number: e0190674}
}

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    <dc:language>eng</dc:language>
    <dc:creator>Lomi, Alessandro</dc:creator>
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    <dcterms:abstract xml:lang="eng">The existence of a shared classification system is essential to knowledge production, transfer, and sharing. Studies of knowledge classification, however, rarely consider the fact that knowledge categories exist within hierarchical information systems designed to facilitate knowledge search and discovery. This neglect is problematic whenever information about categorical membership is itself used to evaluate the quality of the items that the category contains. The main objective of this paper is to show that the effects of category membership depend on the position that a category occupies in the hierarchical knowledge classification system of Wikipedia-an open knowledge production and sharing platform taking the form of a freely accessible on-line encyclopedia. Using data on all English-language Wikipedia articles, we examine how the position that a category occupies in the classification hierarchy affects the attention that articles in that category attract from Wikipedia editors, and their evaluation of quality of the Wikipedia articles. Specifically, we show that Wikipedia articles assigned to coarse-grained categories (i. e., categories that occupy higher positions in the hierarchical knowledge classification system) garner more attention from Wikipedia editors (i. e., attract a higher volume of text editing activity), but receive lower evaluations (i. e., they are considered to be of lower quality). The negative relation between attention and quality implied by this result is consistent with current theories of social categorization, but it also goes beyond available results by showing that the effects of categorization on evaluation depend on the position that a category occupies in a hierarchical knowledge classification system.</dcterms:abstract>
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    <dc:rights>Attribution 4.0 International</dc:rights>
    <dc:creator>Lerner, Jürgen</dc:creator>
    <dcterms:title>Knowledge categorization affects popularity and quality of Wikipedia articles</dcterms:title>
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    <dc:contributor>Lerner, Jürgen</dc:contributor>
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    <dcterms:issued>2018</dcterms:issued>
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    <dc:contributor>Lomi, Alessandro</dc:contributor>
    <dc:date rdf:datatype="http://www.w3.org/2001/XMLSchema#dateTime">2018-02-21T09:17:37Z</dc:date>
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