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Frandsen, T.F.; Rousseau, R.: Article impact calculated over arbitrary periods (2005) 0.02
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Abstract

In this paper we address the various formulations of impact of articles, usually groups of articles as gauged by citations that these articles receive over a certain period of time. The journal impact factor, as published by ISI (Philadelphia, PA), is the best-known example of a formulation of impact of journals (considered as a set of articles) but many others have been defined in the literature. Impact factors have varying publication and citation periods and the chosen length of these periods enables, e.g., a distinction between synchronous and diachronous impact factors. It is shown how an impact factor for the general case can be defined. Two alternatives for a general impact factor are proposed, depending an whether different publication years are seen as a whole, and hence treating each one of them differently, or by operating with citation periods of identical length but allowing each publication period different starting points.
Nebelong-Bonnevie, E.; Frandsen, T.F.: Journal citation identity and journal citation image : a portrait of the Journal of Documentation (2006) 0.02
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Abstract

Purpose - The purpose of this paper is to propose a multiple set of journal evaluation indicators using methods and theories from author analysis. Among those are the journal citation identity and the journal citation image. Design/methodology/approach - The Journal of Documentation is celebrating its 60th anniversary, and for that reason it is portrayed in a bibliometric study using the two indicators, based, e.g. on analyses of references in journal articles and journal co-citation analyses. Findings - The Journal of Documentation, which is portrayed in this study is characterized by high impact and high visibility. It publishes a relatively low number of documents with scientific content compared to other journals in the same field. It reaches far into the scientific community and belongs to a field that is more and more visible. The journal is relatively closely bounded to Western Europe, which is an increasing tendency. Research limitations/implications - The research is based on analyses of just three LIS journals. Practical implications - Journal citation identity and the journal citation image indicators contribute in giving a more detailed multifaceted picture of a single journal. Originality/value - The multiple set of indicators give rise to a journal evaluation of a more qualitative nature.

Frandsen, T.F.; Wouters, P.: Turning working papers into journal articles : an exercise in microbibliometrics (2009) 0.01

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Date: 22. 3.2009 18:59:25

Frandsen, T.F.; Nicolaisen, J.: ¬The ripple effect : citation chain reactions of a nobel prize (2013) 0.01

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Date: 22. 3.2013 16:21:09

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