A New Explanation of Some Leiden Ranking Graphs Using Exponential Functions

نویسنده

  • Leo Egghe
چکیده

A new explanation, using exponential functions, is given for the S-shaped functional relation between the mean citation score and the proportion of top 10% (and other percentages) publications for the 500 Leiden Ranking universities. With this new model we again obtain an explanation for the concave or convex relation between the proportion of top 100θ% publications, for different fractions of θ.

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تاریخ انتشار 2013