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07/06/2023
Rank analysis of most cited publications, a new approach for research assessments
Citation metrics are the best tools for research assessments. However, c...
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11/27/2022
Common bibliometric approaches fail to assess correctly the number of important scientific advances for most countries and institutions
Although not explicitly declared, most research rankings of countries an...
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01/11/2022
The extreme upper tail of Japan's citation distribution reveals its research success
A number of indications, such as the number of Nobel Prize winners, show...
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12/29/2021
The link between countries' economic and scientific wealth has a complex dependence on technological activity and research policy
We studied the research performance of 69 countries by considering two d...
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09/03/2021
Validated research assessment based on highly cited researchers
Bibliometrics provides accurate, cheap and simple descriptions of resear...
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04/15/2021
La evaluacion de la investigacion: Espana suspende
The research assessments of countries or institutions should reveal thei...
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02/17/2020
The h index for research assessment: Simple and popular, but shown by mathematical analysis to be inconsistent and misleading
Citation distributions are lognormal. We use 30 lognormally distributed ...
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07/21/2019
Might Europe one day again be a global scientific powerhouse? Analysis of ERC publications suggests it will not be possible without changes in research policy
Numerous EU documents praise the excellence of EU research without empir...
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03/26/2019
Like-for-like bibliometric substitutes for peer review: advantages and limits of indicators calculated from the ep index
The use of bibliometric indicators would simplify research assessments. ...
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09/28/2018
Evaluating research and researchers by the journal impact factor: is it better than coin flipping?
The journal impact factor (JIF) is the average of the number of citation...
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07/19/2018
Probability and expected frequency of breakthroughs - a robust method of research assessment based on the double rank property of citation distributions
In research policy, effective measures that lead to improvements in the ...
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07/03/2018
The USA is an indisputable world leader in medical and biotechnological research
A country's research success can be assessed from the power law function...
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02/19/2018
Technological research in the EU is less efficient than the world average. EU research policy risks Europeans' future
We have studied the efficiency of research in the EU by a percentile-bas...
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12/01/2017