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How mean rank and mean size may determine the generalised Lorenz curve: With application to citation analysis

机译:平均等级和平均大小如何确定广义Lorenz曲线:应用于引文分析

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摘要

Within the wide framework of information production processes, we present a conversion formula that expresses the generalised Lorenz (GL) curve of a size-frequency distribution as a function of the corresponding rank-size distribution using a fully discrete modelling approach. Based on this conversion formula, we introduce a somewhat universal model for the GL curve of the empirical size-frequency distribution. This study's approach to determining the GL curve is indirect, as we obtain our model for the size-frequency framework by modelling the rank-size distribution and not by directly modelling the size distribution or the GL curve itself, as is usually done. Our GL curve model is particularly appealing because it provides a simple and economical description of the distribution that depends on only three quantities: the (i) mean size, (ii) mean rank, and (iii) maximal rank. The model's performance in predicting the shape of the empirical GL curve is illustrated through a case study involving citation analysis. (C) 2019 The Author. Published by Elsevier Ltd.
机译:在广泛的信息生产过程框架中,我们提出了一种转换公式,该公式使用完全离散的建模方法将尺寸-频率分布的广义Lorenz(GL)曲线表示为相应的等级-尺寸分布的函数。基于此转换公式,我们为经验大小-频率分布的GL曲线引入了某种通用模型。这项研究确定GL曲线的方法是间接的,因为我们通过对秩-大小分布建模而不是像通常那样直接对大小分布或GL曲线本身建模来获得大小-频率框架模型。我们的GL曲线模型之所以特别吸引人,是因为它提供了一种简单而经济的分布描述,该分布仅取决于三个量:(i)平均大小,(ii)平均等级和(iii)最大等级。通过涉及引文分析的案例研究,说明了模型在预测经验GL曲线形状方面的性能。 (C)2019作者。由Elsevier Ltd.发布

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