Entre loi et modèles : variations autour des concepts Zipfiens

Auteurs/Authors : Marc Bertin, Thierry Lafouge

La loi de Zipf s’intéresse aux phénomènes de régularité dans les différents domaines de la connaissance. La régularité mise en exergue ici est celle de la fréquence des mots dans un texte qui s’ancre historiquement autour de l’ingénierie linguistique. Nous présentons les modèles historiques à travers une formalisation mathématique commune afin de mieux appréhender l’intelligibilité des modèles historiques proposés dans la littérature et de discuter de la controverse entre Mandelbrot et Simon.

Nous nous interrogeons sur sa nature et sa résilience à travers une discussion bibliométrique et lexicographique. En s’appuyant sur la position de Kendall, la conclusion positionnera la loi de Zipf par rapport au SHS.

URL : https://intelligibilite-numerique.numerev.com/numeros/n-3-2022/2628-entre-loi-et-modeles-variations-autour-des-concepts-zipfiens

Relationships between Consumption, Publication and Impact in French Universities in a value perspective: A Bibliometric Analysis

Authors : Chérifa Boukacem-Zeghmouri, Pascal Bador, Thierry Lafouge, Hélène Prost

The study aims to investigate the relationships between consumption of e-journals distributed by Elsevier ScienceDirect platform, publication (articles) and impact (citations) in a sample of 13 French universities, from 2003 to 2009.

It adopts a value perspective as it questions whether or not publication activity and impact are some kind of return led by consumption. A bibliometric approach was used to explore the relations between these three variables.

The analysis developed indicators inspired by the mathematical h-Index technique. Results show that the relation between consumption, publication and citations depends on the discipline’s profile, the intensity of research and the size of each institution.

Moreover, although relations have been observed between the three variables, it is not possible to determine which variable comes first to explain the phenomena. The study concludes by showing strong correlations, which nevertheless do not lead to clear causal relations.

The article provide practical implication for academic library managers who want to show the added value of their electronic e-journals collections can replicate the study approach. Also for policy makers who want to take into account e-journals usage as an informative tool to predict the importance of publication activity.

Originality: The study is the first French contribution to e-journal value studies. Its originality consists in developing a value viewpoint that relies on a bibliometric approach.

URL : https://hal.archives-ouvertes.fr/hal-01272124