Per Ahlgren

2024

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Seed-based information retrieval in networks of research publications: Evaluation of direct citations, bibliographic coupling, co-citations, and PubMed-related article score.
Peter Sjögårde|Per Ahlgren
Journal of the Association for Information Science and Technology (JASIST) 2024 Volume 75 Issue 13

2021

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Algorithmic labeling in hierarchical classifications of publications: Evaluation of bibliographic fields and term weighting approaches.
Peter Sjögårde|Per Ahlgren|Ludo Waltman
Journal of the Association for Information Science and Technology (JASIST) 2021 Volume 72 Issue 7

2018

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Exploring the relation between referencing practices and citation impact: A large-scale study based on Web of Science data.
Per Ahlgren|Cristian Colliander|Peter Sjögårde
Journal of the Association for Information Science and Technology (JASIST) 2018 Volume 69 Issue 5

2010

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Measuring impact of twelve information scientists using the DCI index.
Per Ahlgren|Kalervo Järvelin
Journal of the Association for Information Science and Technology (JASIST) 2010 Volume 61 Issue 7

2008

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Evaluation of retrieval effectiveness with incomplete relevance data: Theoretical and experimental comparison of three measures.
Per Ahlgren|Leif Grönqvist
Information Processing and Management 2008 Volume 44 Issue 1

2007

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Indexing strategies for Swedish full text retrieval under different user scenarios.
Per Ahlgren|Jaana Kekäläinen
Information Processing and Management 2007 Volume 43 Issue 1

2006

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Swedish full text retrieval: Effectiveness of different combinations of indexing strategies with query terms.
Per Ahlgren|Jaana Kekäläinen
Discover Computing 2006 Volume 9 Issue 6
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Retrieval evaluation with incomplete relevance data: a comparative study of three measures.
Per Ahlgren|Leif Grönqvist
Proceedings of the 2006 ACM CIKM International Conference on Information and Knowledge Management, Arlington, Virginia, USA, November 6-11, 2006

2004

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Rejoinder: In defense of formal methods.
Per Ahlgren|Bo Jarneving|Ronald Rousseau
Journal of the Association for Information Science and Technology (JASIST) 2004 Volume 55 Issue 10
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Author cocitation analysis and Pearson's r.
Per Ahlgren|Bo Jarneving|Ronald Rousseau
Journal of the Association for Information Science and Technology (JASIST) 2004 Volume 55 Issue 9

2003

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Requirements for a cocitation similarity measure, with special reference to Pearson's correlation coefficient.
Per Ahlgren|Bo Jarneving|Ronald Rousseau
Journal of the Association for Information Science and Technology (JASIST) 2003 Volume 54 Issue 6