Certain quantitative indicators for the interdisciplinarity of disciplines.
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Abstract
<p>The degree, PageRank and betweenness centrality of the nodes in the unweighted (weighted) discipline network are denoted by <i>K</i> (<i>K</i><sub><i>W</i></sub>), <i>P</i> (<i>P</i><sub><i>W</i></sub>), and <i>B</i> respectively. The interdisciplinary strength is <i>S</i> = <i>M</i>/<i>N</i> and the cross indicator is <i>C</i> = <i>SK</i>, where <i>N</i> is the number of the papers and <i>M</i> is the number of the interdisciplinary papers of a certain discipline in PNAS 1999–2013.</p><p>Certain quantitative indicators for the interdisciplinarity of disciplines.</p
