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Www.gu.se Download data versus traditional impact metrics : Measuring impact in a sample of biomedical doctoral dissertations Urban Andersson, Jonas Gilbert,

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Presentation on theme: "Www.gu.se Download data versus traditional impact metrics : Measuring impact in a sample of biomedical doctoral dissertations Urban Andersson, Jonas Gilbert,"— Presentation transcript:

1 www.gu.se Download data versus traditional impact metrics : Measuring impact in a sample of biomedical doctoral dissertations Urban Andersson, Jonas Gilbert, Karin Henning Gothenburg University Library Gothenburg, Sweden

2 www.gu.se Gothenburg University Library Digital Services electronic publishing e-journals and e-books databases web site development IT development

3 www.gu.se Gothenburg University Library Bibliometric Services indicators for resource allocation science mapping collaboration and network analyses citation and performance analyses collection development

4 www.gu.se Download data versus traditional impact metrics

5 www.gu.se Are the different methods complementary or correlating? How to develop methods to measure the relationship?

6 www.gu.se The case – ”Best doctoral thesis”!

7 www.gu.se Compilation thesis Comprehensive summary (50-100 pages) + 3-6 papers

8 www.gu.se Pdf-file for the thesis (comprehensive summary) stored in local repository. Link to published article at external publishers site.

9 www.gu.se Citation data from ISI Web of Science Field normalized citation scores Example: Endocrinology Article 2007 20 citations World average 10 citations Field normalized citations score 20/10 = 2 ”Times cited”

10 www.gu.se Analyzing the data Number of downloads Number of views Average of papers field score Number of times cited DISS 1 90921192,7649 DISS 2 8992650,943 DISS 3 8576170,956 DISS 4 7944040,3817 DISS 5… 6026780,606

11 www.gu.se Lack of correlation between citations and downloads Methods comparedCorrelation score Citation field data – views data-0,13 Citation field data – download data-0,05 Times cited - views data-0,11 Times cited – download data-0,06

12 www.gu.se Additional relationships Correlation between peer judgement and citations Correlation between PR activities and downloads/views

13 www.gu.se Summary Providing diverse data (both downloads and citations) Visibility Enhancement of methods

14 www.gu.se Thanks for your attention! Urban.Andersson@ub.gu.se Jonas.Gilbert@ub.gu.se Karin.Henning@ub.gu.se

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