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  • 1.
    Ahlgren, Per
    Stockholm University, University Library.
    Andel internationella samarbetspublikationer vid Stockholms universitet och Uppsala universitet, 2001‐20102012Report (Other academic)
    Download full text (pdf)
    Rapport SU/UU internationella samarbeten 2001-2010
  • 2.
    Ahlgren, Per
    Stockholm University, University Library.
    Bibliometrisk analys av humanistiska institutioner vid Stockholms universitet, 20082009Report (Other academic)
    Download full text (pdf)
    Rapport HUM Norska modellen 2008
    Download full text (pdf)
    HUM 2008 Kort med tabeller
  • 3.
    Ahlgren, Per
    Stockholm University, University Library.
    Bibliometrisk analys av humanistiska institutioner vid Stockholms universitet, 20092010Report (Other academic)
    Download full text (pdf)
    Rapport HUM Norska modellen 2009
    Download full text (pdf)
    Hum 2009 Kort med tabeller
  • 4.
    Ahlgren, Per
    Stockholm University, University Library.
    Bibliometrisk analys av humanistiska institutioner vid Stockholms universitet, 20102011Report (Other academic)
    Download full text (pdf)
    Rapport HUM Norska modellen 2010
    Download full text (pdf)
    HUM 2010 Kort med tabeller
  • 5.
    Ahlgren, Per
    Stockholm University, University Library.
    Bibliometrisk analys av humanistiska institutioner vid Stockholms universitet, 20112012Report (Other academic)
    Download full text (pdf)
    Rapport HUM Norska modellen 2011
    Download full text (pdf)
    Hum 2011 Kort med tabeller
  • 6.
    Ahlgren, Per
    Stockholm University, University Library.
    Bibliometrisk analys av humanistiska institutioner vid Stockholms universitet, 20122013Report (Other academic)
    Download full text (pdf)
    Rapport HUM Norska modellen 2012
    Download full text (pdf)
    HUM 2012 kort med tabeller
  • 7.
    Ahlgren, Per
    Stockholm University, University Library.
    Bibliometrisk analys av humanistiska institutioner vid Stockholms universitet, 20132014Report (Other academic)
    Download full text (pdf)
    Rapport HUM Norska modellen 2013
    Download full text (pdf)
    HUM 2013 kort version med tabeller
  • 8.
    Ahlgren, Per
    Stockholm University, University Library.
    Bibliometrisk analys av humanistiska institutioner vid Stockholms universitet baserad på den norska modellen2008Report (Other academic)
    Download full text (pdf)
    Rapport HUM Norska modellen 2007
  • 9.
    Ahlgren, Per
    Stockholm University, University Library.
    Bibliometrisk analys av juridiska fakulteten [2007]2008Report (Other academic)
    Download full text (pdf)
    Rapport JUR Norska modellen 2007
  • 10.
    Ahlgren, Per
    Stockholm University, University Library.
    Bibliometrisk analys av naturvetenskapliga institutioner vid Stockholms universitet, 20082009Report (Other academic)
    Download full text (pdf)
    Rapport NAT Norska modellen 2008
    Download full text (pdf)
    NAT 2008 Kort med tabeller
  • 11.
    Ahlgren, Per
    Stockholm University, University Library.
    Bibliometrisk analys av naturvetenskapliga institutioner vid Stockholms universitet, 20092010Report (Other academic)
    Download full text (pdf)
    Rapport NAT Norska modellen 2009
    Download full text (pdf)
    NAT 2009 Kort med tabeller
  • 12.
    Ahlgren, Per
    Stockholm University, University Library.
    Bibliometrisk analys av naturvetenskapliga institutioner vid Stockholms universitet, 20102011Report (Other academic)
    Download full text (pdf)
    Rapport NAT Norska modellen 2010
    Download full text (pdf)
    NAT 2010 Kort med tabeller
  • 13.
    Ahlgren, Per
    Stockholm University, University Library.
    Bibliometrisk analys av naturvetenskapliga institutioner vid Stockholms universitet, 20132014Report (Other academic)
    Download full text (pdf)
    Rapport NAT Norska modellen 2013
    Download full text (pdf)
    NAT 2013 Kort med tabeller
  • 14.
    Ahlgren, Per
    Stockholm University, University Library.
    Bibliometrisk analys av naturvetenskapliga institutioner vid Stockholms universitet baserad på den norska modellen [2007]2008Report (Other academic)
    Download full text (pdf)
    Rapport NAT Norska modellen 2007
  • 15.
    Ahlgren, Per
    Stockholm University, University Library.
    Bibliometrisk analys av naturvetenskapliga institutioner/Stockholms Resilienscentrum vid Stockholms universitet, 20112012Report (Other academic)
    Download full text (pdf)
    Rapport NAT Norska modellen 2011
    Download full text (pdf)
    NAT 2011 Kort med tabeller
  • 16.
    Ahlgren, Per
    Stockholm University, University Library.
    Bibliometrisk analys av naturvetenskapliga institutioner/Stockholms Resilienscentrum vid Stockholms universitet, 20122013Report (Other academic)
    Download full text (pdf)
    Rapport NAT Norska modellen 2012
    Download full text (pdf)
    NAT 2012 Kort med tabeller
  • 17.
    Ahlgren, Per
    Stockholm University, University Library.
    Bibliometrisk analys av samhällsvetenskapliga institutioner vid Stockholms universitet baserad på den norska modellen [2007]2008Report (Other academic)
    Download full text (pdf)
    Rapport SAM Norska modellen 2007
  • 18.
    Ahlgren, Per
    Stockholm University, University Library.
    Bibliometrisk analys av samhällsvetenskapliga institutioner/juridiska institutionen vid Stockholms universitet, 20082009Report (Other academic)
    Download full text (pdf)
    Rapport SAM Norska modellen 2008
    Download full text (pdf)
    SAM 2008 Kort med tabeller
  • 19.
    Ahlgren, Per
    Stockholm University, University Library.
    Bibliometrisk analys av samhällsvetenskapliga institutioner/juridiska institutionen vid Stockholms universitet, 20092010Report (Other academic)
    Download full text (pdf)
    Rapport SAM Norska modellen 2009
    Download full text (pdf)
    SAM 2009 Kort med tabeller
  • 20.
    Ahlgren, Per
    Stockholm University, University Library.
    Bibliometrisk analys av samhällsvetenskapliga institutioner/juridiska institutionen vid Stockholms universitet, 20102011Report (Other academic)
    Download full text (pdf)
    Rapport SAM Norska modellen 2010
    Download full text (pdf)
    SAM 2010 Kort med tabeller
  • 21.
    Ahlgren, Per
    Stockholm University, University Library.
    Bibliometrisk analys av samhällsvetenskapliga institutioner/juridiska institutionen vid Stockholms universitet, 20112012Report (Other academic)
    Download full text (pdf)
    Rapport SAM Norska modellen 2011
    Download full text (pdf)
    SAM 2011 Kort med tabeller
  • 22.
    Ahlgren, Per
    Stockholm University, University Library.
    Bibliometrisk analys av samhällsvetenskapliga institutioner/juridiska institutionen vid Stockholms universitet, 20122013Report (Other academic)
    Download full text (pdf)
    Rapport SAM Norska modellen 2012
    Download full text (pdf)
    SAM 2012 Kort med tabeller
  • 23.
    Ahlgren, Per
    Stockholm University, University Library.
    Bibliometrisk analys av samhällsvetenskapliga institutioner/juridiska institutionen vid Stockholms universitet, 20132014Report (Other academic)
    Download full text (pdf)
    Rapport SAM Norska modellen 2013
    Download full text (pdf)
    SAM 2013 Kort med tabeller
  • 24.
    Ahlgren, Per
    Stockholm University, University Library.
    Bibliometrisk samarbetsstudie av Bert Bolin Centre for Climate Research, Stockholms universitet, 2006‐20112012Report (Other academic)
    Download full text (pdf)
    Rapport BBCC sampublicering 2006-2011
  • 25.
    Ahlgren, Per
    Stockholm University, University Library.
    Bibliometrisk samarbetsstudie av Bert Bolin Centre for Climate Research, åren 2010 och 20132014Report (Other academic)
    Download full text (pdf)
    Rapport BBCC sampublicering 2010+2013
  • 26.
    Ahlgren, Per
    Stockholm University, University Library.
    Bibliometrisk samarbetsstudie av Stockholms universitet och andra svenska lärosäten, 2008‐20122014Report (Other academic)
    Download full text (pdf)
    Rapport SU sampublicering 2008-2012
  • 27.
    Ahlgren, Per
    Stockholm University, University Library.
    Bibliometrisk studie av natur- och samhällsvetenskapliga institutioner vid Stockholms universitet, 2005 - 20072008Report (Other academic)
    Download full text (pdf)
    Rapport NAT/SAM citeringar 2005-2007
  • 28.
    Ahlgren, Per
    Stockholm University, University Library.
    Citeringsstudie av natur‐ och samhällsvetenskapliga institutioner vid Stockholms universitet, 2007‐20092011Report (Other academic)
    Download full text (pdf)
    Rapport NAT Citeringar 2011
  • 29.
    Ahlgren, Per
    Stockholm University, University Library.
    Citeringsstudie av natur- och samhällsvetenskapliga institutioner vid Stockholms universitet, 2008‐20102012Report (Other academic)
    Download full text (pdf)
    Rapport NAT/SAM citeringar 2008-2010
  • 30.
    Ahlgren, Per
    Stockholm University, University Library.
    Citeringsstudie av natur- och samhällsvetenskapliga institutioner vid Stockholms universitet, 2009-20112013Report (Other academic)
    Download full text (pdf)
    Rapport NAT/SAM Citeringar 2009-2011
  • 31.
    Ahlgren, Per
    Stockholm University, University Library.
    Citeringsstudie av Tarfala forskningsstation, Stockholms universitet [1995-2011]2012Report (Other academic)
    Download full text (pdf)
    Rapport Tarfala citeringar 1995-2011
  • 32.
    Ahlgren, Per
    Stockholm University, University Library.
    Den norska modellen sett från Sverige2008In: Forskningspolitikk, ISSN 0333-0273, Vol. 31, no 1, p. 18-18Article in journal (Other (popular science, discussion, etc.))
  • 33.
    Ahlgren, Per
    Stockholm University, University Library.
    Fördelningar av publikationer från Stockholms universitet över publikationstyp, innehåll och förlag, 2011‐20132014Report (Other academic)
    Download full text (pdf)
    Rapport SU i DiVA
  • 34.
    Ahlgren, Per
    Stockholm University, University Library.
    Genomsnittlig normerad citeringsgrad och Top 5% för 20 naturvetenskapliga institutioner vid Stockholms universitet2011Report (Other academic)
    Download full text (pdf)
    Rapport NAT Citeringar + top 5% 2011
  • 35.
    Ahlgren, Per
    Stockholm University, University Library.
    Indikatorn source normalized impact per paper i relation till den norska modellen2013Report (Other academic)
    Download full text (pdf)
    Norska modellen/ SNIP
  • 36.
    Ahlgren, Per
    Stockholm University, University Library.
    Intern sampublicering vid Stockholms universitet, 2008-20122013Report (Other academic)
    Download full text (pdf)
    Presentation SU sampublicering internt 2008-2012
  • 37.
    Ahlgren, Per
    Stockholm University, University Library.
    Komplettering till Bibliometrisk studie av natur- och samhällsvetenskapliga institutioner vid Stockholms universitet, 2005 -20072008Report (Other academic)
    Download full text (pdf)
    Kompletterande rapport NAT/SAM citeringar 2005-2007
  • 38.
    Ahlgren, Per
    Stockholm University, University Library.
    Publikationer från Stockholms universitet relaterade till begreppet hållbar utveckling, 2005‐20122013Report (Other academic)
    Download full text (pdf)
    Rapport Hållbar utveckling - termer
  • 39.
    Ahlgren, Per
    Stockholm University, University Library.
    Samarbete och citeringar: en studie av natur- och samhällsvetenskapliga publikationer från Stockholms universitet, 2009-20112012Report (Other academic)
    Download full text (pdf)
    Rapport NAT/SAM Citeringar, sampublicering 2009-2011
  • 40.
    Ahlgren, Per
    Stockholm University, University Library.
    Stockholms universitet, Karolinska institutet, Kungliga tekniska högskolan och Uppsala universitet: sampubliceringsgrader, 2002‐20112012Report (Other academic)
    Download full text (pdf)
    Rapport SU, KI, KTH, UU, sampublicering 2002-2011
  • 41.
    Ahlgren, Per
    Stockholm University, University Library.
    SU-publikationer och ESI-klasser: citeringsgrad och andel högt citerade publikationer2009Report (Other academic)
    Download full text (pdf)
    Rapport SU citeringar 2005-2008
  • 42.
    Ahlgren, Per
    Stockholm University, University Library.
    Tidskrifter citerade i artiklar och reviews, publicerade 2007-2009, från Biologiska sektionen [Stockholms universitet]2010Report (Other academic)
    Download full text (pdf)
    Rapport citeringar biologi 2007-2009
  • 43.
    Ahlgren, Per
    Stockholm University, University Library.
    Vikt på forskningspublikationer2012Other (Other (popular science, discussion, etc.))
    Download full text (pdf)
    Förklaring av Norska Modellen
  • 44.
    Ahlgren, Per
    et al.
    Stockholm University, University Library.
    Colliander, Cristian
    Document-document similarity approaches and science mapping: experimental comparison of five approaches2009In: Journal of Informetrics, ISSN 1751-1577, E-ISSN 1875-5879, Vol. 3, no 1, p. 49-63Article in journal (Refereed)
    Abstract [en]

    This paper treats document–document similarity approaches in the context of science mapping. Five approaches, involving nine methods, are compared experimentally. We compare text-based approaches, the citation-based bibliographic coupling approach, and approaches that combine text-based approaches and bibliographic coupling. Forty-three articles, published in the journal Information Retrieval, are used as test documents. We investigate how well the approaches agree with a ground truth subject classification of the test documents, when the complete linkage method is used, and under two types of similarities, first-order and second-order. The results show that it is possible to achieve a very good approximation of the classification by means of automatic grouping of articles. One text-only method and one combination method, under second-order similarities in both cases, give rise to cluster solutions that to a large extent agree with the classification.

  • 45.
    Ahlgren, Per
    et al.
    Stockholm University, University Library.
    Colliander, Cristian
    Textual content, cited references, similarity order, and clustering: an experimental study in the context of science mapping2009In: Proceedings of the 12th International Conference on Scientometrics and Informetrics (Volume 2), 2009, p. 862-873Conference paper (Refereed)
  • 46.
    Ahlgren, Per
    et al.
    Stockholm University, University Library.
    Colliander, Cristian
    Umeå University, Deptartment of Sociology.
    Persson, Olle
    Umeå University, Deptartment of Sociology.
    Field normalized citation rates, field normalized journal impact and Norwegian weights for allocation of university research funds2012In: Scientometrics, ISSN 0138-9130, E-ISSN 1588-2861, Vol. 92, no 3, p. 767-780Article in journal (Refereed)
    Abstract [en]

    We compared three different bibliometric evaluation approaches: two citation-based approaches and one based on manual classification of publishing channels into quality levels. Publication data for two universities was used, and we worked with two levels of analysis: article and department. For the article level, we investigated the predictive power of field normalized citation rates and field normalized journal impact with respect to journal level. The results for the article level show that evaluation of journals based on citation impact correlate rather well with manual classification of journals into quality levels. However, the prediction from field normalized citation rates to journal level was only marginally better than random guessing. At the department level, we studied three different indicators in the context of research fund allocation within universities and the extent to which the three indicators produce different distributions of research funds. It turned out that the three distributions of relative indicator values were very similar, which in turn yields that the corresponding distributions of hypothetical research funds would be very similar.

  • 47.
    Ahlgren, Per
    et al.
    Stockholm University, University Library.
    Grönqvist, Leif
    Evaluation of retrieval effectiveness with incomplete relevance data: theoretical and experimental comparison of three measures2008In: Information Processing & Management, ISSN 0306-4573, E-ISSN 1873-5371, Vol. 44, no 1, p. 212-225Article in journal (Refereed)
  • 48.
    Ahlgren, Per
    et al.
    Stockholm University, University Library.
    Hinders, Johan
    Stockholm University, University Library.
    Lindelöw, Camilla
    Stockholm University, University Library.
    Parmhed, Sara
    Stockholm University, University Library.
    Swedberg, Per
    Stockholm University, University Library.
    Research Collaboration between Stockholm University and other Swedish Academic Institutions: A Bibliometric Study to Support Decisions on Library Collaboration2015In: Qualitative and Quantitative Methods in Libraries, QQML, ISSN 2241-1925, E-ISSN 2241-1925, no SI, p. 49-60Article in journal (Refereed)
    Abstract [en]

    Academic libraries collaborate in several ways. For instance, collaboration can concern standards for indexing and statistics, technical solutions or collection development. A question that a given academic library might ask is with which other academic libraries the library should principally collaborate. In this study, we show how bibliometric methods can be used to generate information that can support decision making with regard to the question at stake. We evaluate the amount of research collaboration between Stockholm University and other Swedish academic institutions across five publishing years, and for the whole considered time period, where research collaboration is operationalized as co-publishing. A dataset of publications obtained from Web of Science, where each publication has at least one Stockholm University address, is used in the study. Co-publishing rates, non-fractionalized and fractionalized, across the publishing years and for the whole for period, for Stockholm University and other Swedish academic institutions, are reported. Further, parts of the outcome of the study are visualized in terms of co-publishing networks.

  • 49.
    Ahlgren, Per
    et al.
    Stockholm University, University Library.
    Jarneving, Bo
    Bibliographic coupling, common abstract stems and clustering: a comparison of two document-document similarity approaches in the context of science mapping2008In: Scientometrics, ISSN 0138-9130, E-ISSN 1588-2861, Vol. 76, no 2, p. 273-290Article in journal (Refereed)
  • 50.
    Ahlgren, Per
    et al.
    Stockholm University, University Library.
    Järvelin, Kalervo
    Measuring impact of twelve information scientists using the DCI index2010In: Journal of The American Society For Information Science And Technology, ISSN 1532-2882, E-ISSN 1532-2890, Vol. 61, no 7, p. 1424-1439Article in journal (Refereed)
    Abstract [en]

    The Discounted Cumulated Impact (DCI) index has recently been proposed for research evaluation. In the present work an earlier dataset by Cronin and Meho (2007) is reanalyzed, with the aim of exemplifying the salient features of the DCI index. We apply the index on, and compare our results to, the outcomes of the Cronin-Meho (2007) study. Both authors and their top publications are used as units of analysis, which suggests that, by adjusting the parameters of evaluation according to the needs of research evaluation, the DCI index delivers data on an author's (or publication's) "lifetime" impact or current impact at the time of evaluation on an author's (or publication's) capability of inviting citations from highly cited later publications as an indication of impact, and on the relative impact across a set of authors (or publications) over their "lifetime" or currently.

123 1 - 50 of 105
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