Bibliometric research assessment has matured into a quantitative phase using more meaningful measures and analogies. In this paper, we propose a thermodynamic analogy and introduce what are called the energy, exergy and entropy terms associated with a bibliometric sequence. This can be displayed as time series (variation over time), or in event terms (variation as papers are published) and also in the form of phase diagrams (energy–exergy–entropy representations). It is exergy which is the most meaningful single number scalar indicator of a scientist’s performance while entropy then becomes a measure of the unevenness (disorder) of the publication portfolio.
Bibliometrics X = iCEnergy Exergy Entropy S = E − Xp-index
This is a preview of subscription content, log in to check access.
The author is grateful to anonymous referees for their valuable comments which have helped to improve the paper.
Dincer, I., & Cengel, Y. A. (2001). Energy, entropy and exergy concepts and their roles in thermal engineering. Entropy,3, 116–149.CrossRefGoogle Scholar
Glanzel, W. (2006). On the h-index—A mathematical approach to a new measure of publication activity and citation impact. Scientometrics,67, 315–321.CrossRefGoogle Scholar
Glanzel, W. (2008) On some new bibliometric applications of statistics related to the h-index. OR 0801, KU Leuven.Google Scholar
Hirsch, J. E. (2005). An index to quantify an individual’s scientific research output. Proceedings of the National Academy of Sciences of the USA,102, 16569–16572.CrossRefGoogle Scholar