an critical evaluation of multidisciplinary citation databases

1. One Entry to Research: critical assessment of Web of Science(WoS), Scopus and Google Scholar(GS) 10.50-11.10 Friday 15 Sept EAHIL 10th conference 2006 in Cluj-Napoca, Romania Speaker:Lars Iselid

2. BIBSAM-project from 1/1 2006 – 31/8 2006: One Entry to Research – critical assessment of Web of Science, Scopus och Google Scholar oneentry.wordpress.com

6. Rantapaa* 8 name variants

7. Rantapaa S* 2 additional name variants Of course much of the incorrect author spellings in Cited Ref Search could be blamed on incorrect citation information from article authors.

8. The Lancet-article? Rantapaa Dahlqvist or Rantapaa-Dahlqvist

9. The Lancet-article? Rantapaadahlqvist

10. The Lancet-article? Rantapaa-Dahlquist

11. The Lancet article! Original e-journal article

12. Lancet article in

13. Rantapaa* S

14. Lancet article in Dahlqvist, S.R.

15. Lancet article in

16. Bad implementation of data! Address is missing for Rantapää

17. … but in the original e-journal article, it’s there!

18. Search with limit umea could produce false amount of citations!! S Astrom umea

19. S Astrom Dept ophthalmol

20. Eriksson s* umea

21. S Eriksson Umea plant sci ctr

22. S Eriksson Geriatr Ctr

23. Staffan Eriksson at the same department published as S Eriksson

24. Lots of flaws when counting citations in Google Scholar. Many duplicates! Has no address field.

27. Coverage evaluation of WoS and Scopus - How many active titles? Scopus 13.226 journals WoS 8.786 journals

28. Coverage evaluation of WoS and Scopus - How many active titles overlap and how many are unique? WoS Scopus 7.210 indexed both in Scopus and WoS All together 14.802 journals with unique ISSN.

29. Coverage evaluation of WoS and Scopus - How many active titles overlap? WoS covers 55% of Scopus Scopus covers 82% of WoS 49 % exist in both

30. Active titles in each database

31. Average overlap of WoS 51,8% Scopus WoS Medline Embase Compendex PsycINFO Sociological Abstracts 55% 55% 46% 57% 36% 62%

32. Average overlap of Scopus 74,2% Scopus WoS Medline Embase Compendex PsycINFO Sociological Abstracts 82% 91% 45% 71% 67% 89%