Average-based versus High- and Low-Impact Indicators for the Evaluation of Scientific Distributions
Albarrán et al. (2009a ) introduced a novel methodology for the evaluation of citation distributions consisting of a pair of high- and a low-impact measures defined over the set of articles with citations below or above a critical citation level CCL. Albarrán et al. (2009b ) presented the first empirical applications to a situation in which the world citation distribution in 22 scientific fields is partitioned into three geographical areas: the U.S., the European Union, and the rest of the world. In this paper, we compare our results with those obtained with average-based indicators. For reasonable CCLs, such as the 80th percentile of the world citation distribution in each field, the cardinal differences between the results obtained with our high-impact index and the mean citation rate are of a large order of magnitude. When, in addition, the percentage in the top 5% of most cited articles or the percentage of uncited articles are used, there are still important quantitative differences with respect to the high- and low-impact indicators advocated in our approach when the CCL is fixed at the 80th or the 95th percentile.
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- Albarrán, Pedro & Ortuño, Ignacio & Ruiz-Castillo, Javier, 2011.
"The measurement of low- and high-impact in citation distributions: Technical results,"
Journal of Informetrics,
Elsevier, vol. 5(1), pages 48-63.
- Albarrán, Pedro & Ruiz-Castillo, Javier & Ortuño, Ignacio, 2009. "The measurement of low- and high-impact in citation distributions : technical results," UC3M Working papers. Economics we095735, Universidad Carlos III de Madrid. Departamento de Economía.
- Albarrán, Pedro & Ruiz-Castillo, Javier & Ortuño, Ignacio & Crespo, Juan A., 2010.
"The skewness of science in 219 sub-fields and a number of aggregates,"
UC3M Working papers. Economics
we1038, Universidad Carlos III de Madrid. Departamento de Economía.
- Ruiz-Castillo, Javier & Ortuño, Ignacio & Crespo, Juan A. & Albarrán, Pedro, 2011. "The skewness of science in 219 sub-fields and a number of aggregates," UC3M Working papers. Economics we1109, Universidad Carlos III de Madrid. Departamento de Economía.
- Albarrán, Pedro & Crespo, Juan A. & Ortuño-Ortín, Ignacio & Ruiz-Castillo, Javier, 2010. "The Skewness of Science in 219 Sub-Fields and a Number of Aggregates," CEPR Discussion Papers 8126, C.E.P.R. Discussion Papers.
- Ruiz-Castillo, Javier & Ortuño, Ignacio & Crespo, Juan A. & Albarrán, Pedro, 2009. "A comparison of the scientific performance of the U. S. and the European Union at the turn of the XXI century," UC3M Working papers. Economics we095534, Universidad Carlos III de Madrid. Departamento de Economía.
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