| 1. |
- Ahlgren, Per, et al.
(author)
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Author cocitation analysis and Pearson's r
- 2004
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In: Journal of The American Society For Information Science And Technology. - : Wiley. - 1532-2882 .- 1532-2890. ; 55:9, s. 843-843
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Journal article (peer-reviewed)
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| 5. |
- Ahlgren, Per, et al.
(author)
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Rejoinder : In defense of formal methods
- 2004
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In: Journal of The American Society For Information Science And Technology. - : Wiley. - 1532-2882 .- 1532-2890. ; 55:10, s. 936-936
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Journal article (peer-reviewed)
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| 6. |
- Ahlgren, Per, et al.
(author)
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Requirements for a cocitation similarity measure, with special reference to Pearson's correlation coefficient
- 2003
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In: Journal of The American Society For Information Science And Technology. - : Wiley. - 1532-2882 .- 1532-2890. ; 54:6, s. 550-560
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Journal article (peer-reviewed)abstract
- Author cocitation analysis (ACA), a special type of cocitation analysis, was introduced by White and Griffith in 1981. This technique is used to analyze the intellectual structure of a given scientific field. In 1990, McCain published a technical overview that has been largely adopted as a standard. Here, McCain notes that Pearson's correlation coefficient (Pearson's r) is often used as a similarity measure in ACA and presents some advantages of its use. The present article criticizes the use of Pearson's r in ACA and sets forth two natural requirements that a similarity measure applied in ACA should satisfy. It is shown that Pearson's r does not satisfy these requirements. Real and hypothetical data are used in order to obtain counterexamples to both requirements. It is concluded that Pearson's r is probably not an optimal choice of a similarity measure in ACA. Still, further empirical research is needed to show if, and in that case to what extent, the use of similarity measures in ACA that fulfill these requirements would lead to objectively better results in full-scale studies. Further, problems related to incomplete cocitation matrices are discussed.
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| 10. |
- Jarneving, Bo
(author)
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A Bibliometric Study of the Literature Related to Research on Public Libraries
- 2006
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In: Studii de Biblioteconomie şi Ştiinţa Informării / Library and Information Science Research. - : Library and Information Science Department of the Faculty of Letters at the University of Bucharest. - 1453-5386. ; 2005-2006:9-10, s. 47-69
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Journal article (other academic/artistic)abstract
- A quantitative survey of the literature pertaining to the study of public libraries, covering the period of 1986-2005, was pursued applying bibliometric methods. The survey aimed at the arrival of descriptive data that would inform about the features and development of the field’s base literature. It was found that the monographic form of cited references was more common than cited references of the journal form, but over time, the tendency to cite articles published in journals increased on behalf of monographs. In addition, the intellectual import from other fields than Library and Information Science was approximated and found more than marginal. On different levels of citation aggregations, frequency distributions and rank orders indicated a fragmented base literature. Cores of the more cited authors and journals were identified and illustrated by bibliometric mapping techniques. The exploration of a presumed shared intellectual focus on the earlier literature showed that approximately half of all papers were isolated in terms of not sharing references with any other paper, though a weak tendency of increased consensus was noted. Finally, though somewhat more than half of all citations were more than five years old, a tendency over time to cite more current literature was notable.
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