H-index, mentoring-index, highly-cited and highly-accessed: how to evaluate scientists?

A case study of the arbitrariness of the h-index and the highly-cited-publications indicator

The arbitrariness of the h-index becomes evident, when one requires q*h instead of h citations as the threshold for the definition of the index, thus changing the size of the core of the most influential publications of a dataset. I analyze the citation records of 26 physicists in order to determine how much the prefactor q influences the ranking. Likewise, the arbitrariness of the highly-cited...

Nutrition & Metabolism Classics: a disconnect between highly cited and highly accessed articles

Nutrition & Metabolism has grown considerably in the ten years since its first article was published. To see how papers published in the journal had an impact we have identified some of the most popular articles in order to measure their influence, observe which fields are important to our readers, and try to explain what made these articles Nutrition & Metabolism "Classics".

Twenty Hirsch index variants and other indicators giving more or less preference to highly cited papers

– The Hirsch index or h-index is widely used to quantify the impact of an individual’s scientific research output, determining the highest number h of a scientist’s papers that received at least h citations. Several variants of the index have been proposed in order to give more or less preference to highly cited papers. I analyse the citation records of 26 physicists discussing various suggesti...

Does it Matter Which Citation Tool is Used to Compare the h-index of a Group of Highly Cited Researchers?

h-index retrieved by citation indexes (Scopus, Google scholar, and Web of Science) is used to measure the scientific performance and the research impact studies based on the number of publications and citations of a scientist. It also is easily available and may be used for performance measures of scientists, and for recruitment decisions. The aim of this study is to investigate the difference ...

Cited in Index Medicus