Search (8 results, page 1 of 1)

  • × author_ss:"Nicolaisen, J."
  • × year_i:[2000 TO 2010}
  1. Nicolaisen, J.: Citation analysis (2007) 0.01
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    Date
    13. 7.2008 19:53:22
  2. Hjoerland, B.; Nicolaisen, J.: Scientific and scholarly classifications are not "naïve" : a comment to Begthol (2003) (2004) 0.00
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    Abstract
    Relationships between Knowledge Organization in LIS and Scientific & Scholarly Classifications In her paper "Classification for Information Retrieval and Classification for Knowledge Discovery: Relationships between 'Professional' and 'Naive' Classifications" (KO v30, no.2, 2003), Beghtol outlines how Scholarly activities and research lead to classification systems which subsequently are disseminated in publications which are classified in information retrieval systems, retrieved by the users and again used in Scholarly activities and so on. We think this model is correct and that its point is important. What we are reacting to is the fact that Beghtol describes the Classifications developed by scholars as "naive" while she describes the Classifications developed by librarians and information scientists as "professional." We fear that this unfortunate terminology is rooted in deeply ar chored misjudgments about the relationships between scientific and Scholarly classification an the one side and LIS Classifications an the other. Only a correction of this misjudgment may give us in the field of knowledge organization a Chance to do a job that is not totally disrespected and disregarded by the rest of the intellectual world.
    Footnote
    Bezugnahme auf: Beghtol, C.: Classification for information retrieval and classification for knowledge discovery: relationships between 'professional' and 'naive' classifications" in: Knowledge organization. 30(2003), no.2, S.64-73; vgl. dazu auch die Erwiderung von C. Beghtol in: Knowledge organization. 31(2004) no.1, S.62-63.
  3. Nicolaisen, J.; Hjoerland, B.: ¬A rejoinder to Beghtol (2004) (2004) 0.00
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    Footnote
    Bezugnahme auf: Beghtol, C.: Response to Hjoerland and Nicolaisen. In: Knowledge organization. 31(2004) no.1, S.62-63 sowie: Hjoerland, B., J. Nicolaisen: Scientific and scholarly classifications are not "naïve": a comment to Beghtol (2003). In: Knowledge organization. 31(2004) no.1, S.55-61.
  4. Hjoerland, B.; Nicolaisen, J.: Bradford's law of scattering : ambiguities in the concept of "subject" (2005) 0.00
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    Abstract
    Bradfordrsquos law of scattering is said to be about subject scattering in information sources. However, in spite of a corpus of writings about the meaning of the word ldquosubjectrdquo and equivalent terms such as ldquoaboutnessrdquo or ldquotopicalityrdquo, the meaning of ldquosubjectrdquo has never been explicitly addressed in relation to Bradfordrsquos law. This paper introduces a distinction between Lexical scattering, Semantic scattering, and Subject scattering. Neither Bradford himself nor any follower has explicitly considered the differences between these three and the implications for the practical applications of Bradfordrsquos law. Traditionally, Bradfordrsquos law has been seen as a neutral and objective tool for the selection of the most central information sources in a field. However, it is hard to find actual reports that describe how Bradfordrsquos law has been applied in practical library and information services. Theoretical as well as historical evidence suggest that the selection of journals based on Bradford-distributions tend to favorite dominant theories and views while suppressing views other than the mainstream at a given time.
  5. Frandsen, T.F.; Nicolaisen, J.: Intradisciplinary differences in database coverage and the consequences for bibliometric research (2008) 0.00
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    Abstract
    Bibliographic databases (including databases based on open access) are routinely used for bibliometric research. The value of a specific database depends to a large extent on the coverage of the discipline(s) under study. A number of studies have determined the coverage of databases in specific disciplines focusing on interdisciplinary differences; however, little is known about the potential existence of intradisciplinary differences in database coverage. Focusing on intradisciplinary differences, the article documents large database-coverage differences within two disciplines (economics and psychology). The point extends to include both the uneven coverage of specialties and research traditions. The implications for bibliometric research are discussed, and precautions which need to be taken are outlined.
  6. Nicolaisen, J.; Hjoerland, B.: Practical potentials of Bradford's law : a critical examination of the received view (2007) 0.00
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    Abstract
    Purpose - The purpose of this research is to examine the practical potentials of Bradford's law in relation to core-journal identification. Design/methodology/approach - Literature studies and empirical tests (Bradford analyses). Findings - Literature studies reveal that the concept of "subject" has never been explicitly addressed in relation to Bradford's law. The results of two empirical tests (Bradford analyses) demonstrate that different operationalizations of the concept of "subject" produce quite different lists of core-journals. Further, an empirical test reveals that Bradford analyses function discriminatorily against minority views. Practical implications - Bradford analysis can no longer be regarded as an objective and neutral method. The received view on Bradford's law needs to be revised. Originality/value - The paper questions one of the old dogmas of the field.
  7. Nicolaisen, J.: Compromised need and the label effect : an examination of claims and evidence (2009) 0.00
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    Abstract
    To establish whether the compromised need/the label effect is a frequently occurring phenomenon or not, available studies of the phenomenon are examined and claims are compared with evidence. Studies that reportedly have verified the phenomenon are shown to suffer from technical problems that put the claim of verification in doubt. Studies that have reported low percentages of questions changing from the initial query during large-scale studies of user-librarian negotiations could indicate that users are quite often asking for precisely what they want. However, these studies are found not to be definite falsifications, as the librarians did not conduct in-depth interviews and therefore may have failed to discover the users' real information needs. Whether the compromised need/the label effect is a frequently occurring phenomenon or not cannot be conclusively confirmed or disconfirmed. However, the compromised need/the label effect is not the obvious truism or empirical fact that it has otherwise been claimed to be.
  8. Nicolaisen, J.: ¬The J-shaped distribution of citedness (2002) 0.00
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    Abstract
    A new approach for investigating the correlation between research quality and citation counts is presented and applied to a case study of the relationship between peer evaluations reflected in scholarly book reviews and the citation frequencies of reviewed books. Results of the study designate a J-shaped distribution between the considered variables, presumably caused by a skewed allocation of negative citations. The paper concludes with suggestions for further research.