Astrom F. "Visualizing library and information science concept spaces through keyword and citation based maps and clusters." COLIS4 : Emerging frameworks and methods. 2002. p.185-197 Libraries Unlimited Inc. Englewood.
garfield at CODEX.CIS.UPENN.EDU
Mon Jul 14 18:01:22 EDT 2003
Fredrik Astrom : fredrik.astrom at soc.umu.se
TITLE : Visualizing library and information science concept spaces through
keyword and citation based maps and clusters.
AUTHOR: Astrom, F.
SOURCE: COLIS4 : Emerging frameworks and methods. 2002. p.185-197 Libraries
Unlimited Inc. Englewood.
Address: Inforsk, Department of Sociology, Umea University 9-1 87 Umea,
Co-citation analysis has been widely accepted as the foremost method for
bibliometric mapping of research fields, whereas analyses based on keywords
have been discussed, without gaining any overall acceptance. Ther are,
however, advantages with keywords such as being understandable by others
than those immediately connected to the field analyzed. This study aims at
testing the relation between keyword and citation based analyses, and
showing the significance of journal selection while mapping scientific
fields. The preliminary study is based on 1135 Social Science Citation
Index (SSCI) records from nine library and information science journal swith
descriptors added from the Resources Information Center Database (ERIC)
database. Three maps are compared: one based on co-citations, one on
keyword co-occurrences, and one merging citations and keywords. The
mappings show the same basic structures, and when merged, cited authors and
keywords form corresponding relations. In comparison with earlier
bibliometric studies, the wider journal selection makes it possible to
identify a library science research area within library and information
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