Asca (Automatic Subject Citation Alert

Abstract

Citation indexing serves as the basis for a large-scale person alized reference system offered on a subscription basis by the Institute for Scientific Information in Philadelphia, Pennsylva nia. Dr. Eugene Garfield is President of ISI and Irving Sher is Vice-President in charge of Research and Development.

Citation Environment of Angewandte Chemie

“…We assume that the results presented here for 2004 have time stability and can be extrapolated on 'flanking' years because a series of studies have shown remarkable time stabilities in journal citation patterns. [1,17] The 'decomposition' of a citation environment remains sensitive to the choice of the seed journal (the 'point of entrance'). Journal citation patterns span a multidimensional space in which clouds can be distinguished, but the delineation of these clouds at the edges remains fuzzy and varies with the perspective chosen by the analyst.…”

Citation Indexing Revisited: Garfield’s Early Vision and Its Implications for the Future

“…tHe SCI anD tHe stuDy oF inteRDisCiplinaRity While Gene's early conviction on how citation indexing would foster the hybridization and cross-fertilization of scientific fields was critical to the design and implementation of the SCI, there had been no systematic demonstration of this capability. The "historiograph" study had dealt with citation links within a single field, the genetic code (Garfield et al, 1964), and even his Automatic Subject Citation Alert product which was capable of retrieving literature on a weekly basis from multiple fields based on a user-defined profile could not systematically reveal crossdisciplinary research (Garfield and Sher, 1967).…”