- How are new citation-based journal indicators adding to the bibliometric toolbox?
- 12th International Conference on Scientometrics and Informetrics ISSI
- Book/source title
- Proceedings of ISSI 2009: 12th International Conference on Scientometrics and Informetrics ISSI, Rio de Janeiro, 15 July 2009
- Pages (from-to)
- Document type
- Conference contribution
- Faculty of Social and Behavioural Sciences (FMG)
- Amsterdam School of Communication Research (ASCoR)
The launching of Scopus and Google Scholar, and methodological developments in Social Network Analysis have made many more indicators for evaluating journals available than the traditional Impact Factor, Cited Halflife, and Immediacy Index of the ISI. In this study, these new indicators are compared with one another and with the older ones. Do the various indicators measure new dimensions of the citation networks, or are they highly
correlated among them? Are they robust and relatively stable over time? Two main dimensions are distinguished—size and impact—which together shape influence. The H-index combines the two dimensions and can also be considered as an indicator of reach (like Indegree). PageRank is mainly an indicator of size, but has important interactions with centrality measures. The Scimago Journal Ranking (SJR) indicator provides an
alternative to the Journal Impact Factor, but the computation is less easy.