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Baird, L.M.; Oppenheim, C.: Do citations matter? (1994)
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- Abstract
- Citation indexes are based on the principle of authors citing previous articles of relevance. The paper demonstrates the long history of citing for precedent and notes how ISI's citation indexes differ from 'Shephards Citations'. The paper analyses some of the criticisms of citations counting, and some of the uses for which citation analysis has been employed. The paper also examines the idea of the development of an Acknowledgement Index, and concludes such an index is unlikely to be commercially viable. The paper describes a citation study of Eugene Garfield, and concludes that he may be the most heavily cited information scientist, that he is a heavy self-citer, and that the reasons why other authors cite Garfield are different from the reasons why he cites himself. The paper concludes that citation studies remain a valid methgod of analysis of individuals', institutions', or journals' impact, but need to be used with caution and in conjunction with other measures
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Levitt, J.M.; Thelwall, M.; Oppenheim, C.: Variations between subjects in the extent to which the social sciences have become more interdisciplinary (2011)
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- Abstract
- Increasing interdisciplinarity has been a policy objective since the 1990s, promoted by many governments and funding agencies, but the question is: How deeply has this affected the social sciences? Although numerous articles have suggested that research has become more interdisciplinary, yet no study has compared the extent to which the interdisciplinarity of different social science subjects has changed. To address this gap, changes in the level of interdisciplinarity since 1980 are investigated for subjects with many articles in the Social Sciences Citation Index (SSCI), using the percentage of cross-disciplinary citing documents (PCDCD) to evaluate interdisciplinarity. For the 14 SSCI subjects investigated, the median level of interdisciplinarity, as measured using cross-disciplinary citations, declined from 1980 to 1990, but rose sharply between 1990 and 2000, confirming previous research. This increase was not fully matched by an increase in the percentage of articles that were assigned to more than one subject category. Nevertheless, although on average the social sciences have recently become more interdisciplinary, the extent of this change varies substantially from subject to subject. The SSCI subject with the largest increase in interdisciplinarity between 1990 and 2000 was Information Science & Library Science (IS&LS) but there is evidence that the level of interdisciplinarity of IS&LS increased less quickly during the first decade of this century.
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Oppenheim, C.: ¬The implications of copyright legislation for electronic access to journal collections (1994)
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- Source
- Journal of document and text management. 2(1994) no.1, S.10-22
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Oppenheim, C.: ¬An agenda for action to achieve the information society in the UK (1996)
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- Source
- Journal of information science. 22(1996) no.6, S.407-421
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Oppenheim, C.: Intellectual property : legal and other issues (1997)
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- Source
- Information studies. 3(1997) no.1, S.5-22
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Oppenheim, C.: Electronic scholarly publishing and open access (2009)
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- Date
- 8. 7.2010 19:22:45
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Norris, M.; Oppenheim, C.: ¬The h-index : a broad review of a new bibliometric indicator (2010)
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- Date
- 8. 1.2011 19:22:13
