KeyWord Plus(R)

KeyWord Plus is a kind of automatic indexing used in the citation databases produced by ISI.


Example:  The article: Tsai, C. F.; McGarry, K. & Tait, J. (2006). Qualitative evaluation of automatic assignment of keywords to images. Information Processing & Management, 42(1), 136-154.  Has been indexed by SciSearch with the following -"KeyWord Plus(R)" (also designated "identifiers"):





"Irving Sher reinvestigated the feasibility of enhancing title word indexing by using title information in cited references. As a result of these experiments, combined with his experience in using similar procedures for algorithmically naming research fronts identified by cocitation clustering (Small & Garfield, 1986), he was able to develop the system named Keywords PlusTM, which has been described recently (Garfield, 1990a, 1990b)." (Garfield & Sher, 1993).





Garfield, E. (1976). The Permuterm Subject Index: An autobiographical review, Journal of the American Society for Information Science, 27, 288-291.

Garfield, E. (1990a, August 6). Keywords PlusTM: ISI’s breakthrough retrieval method. Part 1. Expanding your searching power on Current Contents on Diskette, Current Contents, 32, 5-9.

Garfield, E. (1990b, August 13). Keywords PlusTM takes you beyond title words. Part 2. Expanded journal coverage for Current Contents on Diskette@, includes social and behavioral sciences, Current Contents, 33, 5-9.


Garfield, E. & Sher, I. H. (1993). KeyWords Plus - algorithmic derivative indexing. Journal of the American Society for Information Science, 44(5), 298-299.


Gray, W. A., & Harley, A. J. (1971). Computer assisted indexing. Information Storage & Retrieval, 7, 167- 174.

Kwok, K. L. (1975). The use of titles and cited titles as document representation for automatic classification. Information Processing & Management, 11, 201-206.

Small, H., & Garfield, E. (1986). The geography of science: Disciplinary and national mappings. Journal of Information Science, 11, 147-159.



See also: Citation Indexing; Research front



Birger Hjørland

Last edited: 05-07-2006