345 citations · 2k across the 154 of their papers we have counts for
5 papers · 1 filter
Sampling Issues in Bibliometric Analysis
Richard Williams, Lutz Bornmann
Bibliometricians face several issues when drawing and analyzing samples of citation records for their research. Drawing samples that are too small may make it difficult or impossib…
Tracing the origin of a scientific legend by Reference Publication Year Spectroscopy (RPYS): the legend of the Darwin finches
Werner Marx, Lutz Bornmann
In a previews paper we introduced the quantitative method named Reference Publication Year Spectroscopy (RPYS). With this method one can determine the historical roots of research…
Statistical Tests and Research Assessments: A comment on Schneider (2012)
Lutz Bornmann, Loet Leydesdorff
In a recent presentation at the 17th International Conference on Science and Technology Indicators, Schneider (2012) criticised the proposal of Bornmann, de Moya Anegon, and Leydes…
How to analyse percentile impact data meaningfully in bibliometrics: The statistical analysis of distributions, percentile rank classes and top-cited papers
Lutz Bornmann
According to current research in bibliometrics, percentiles (or percentile rank classes) are the most suitable method for normalising the citation counts of individual publications…
New approaches for increasing the reliability of the h index research performance measurement
Lutz Bornmann, Ruediger Mutz, Hans-Dieter Daniel
In the year 2005 Jorge Hirsch introduced the h index for quantifying the research output of scientists. Today, the h index is a widely accepted indicator of research performance. T…