Reports findings from a study of the geographical distribution of foreign authors in the "Journal of American Society for Information Science and Technology"(JASIST) and "Journal of Documentation". Also identifies the top 10 geographic locations with the highest number of foreign authors and the top 10 most productive foreign authors. (Author/LRW)

Comments on author cocitation analysis theory and methods. By entering Pearson's r's into multidimensional scaling and clustering routines, the author shows that, despite r's fluctuations, clusters based on it are much the same for the combined groups as for the separate groups. The combined groups when mapped appear as polarized clumps of points…

Discussion of knowledge domain visualization focuses on practical issues concerning modeling and visualizing scientific revolutions. Studies growth patterns of specialties derived from citation and cocitation data on string theory in physics, using the general framework of Thomas Kuhn's structure of scientific revolutions. (Author/LRW)

Discussion of research in image indexing and retrieval focuses on a study that analyzed citations and documents relevant to image indexing and retrieval obtained from the SCI (Science Citation Index) and SSCI (Social Science Citation Index). Results confirmed that there exist two distinctive research groups, employing the content-based and…

Develops the theory for a stochastic model for the citation process in the presence of obsolescence to predict the future citation pattern of individual papers in a collection. Shows that the expected number of future citations is a linear function of the current number, interpreted as an example of a success-breeds-success phenomenon. (Author/LRW)

Criticizes the use of Pearson's correlation coefficient in author cocitation analysis (ACA), a technique used to analyze the intellectual structure of a given scientific field, and sets forth two natural requirements that a similarity measure applied in ACA should satisfy. Uses real and hypothetical data to obtain counterexamples to both…

Discusses mapping science and Kuhn's theories of paradigms and scientific development. Highlights include cocitation clustering; bibliometric definition of a paradigm; specialty dynamics; pathways through science; a new Web tool called Essential Science Indicators (ESI) for studying the structure of science; and microrevolutions. (Author/LRW)

Discusses the role of information visualization in modeling and representing intellectual structures associated with scientific disciplines and visualizes the domain of computer graphics based on bibliographic data from author cocitation patterns. Highlights include author cocitation maps, citation time lines, animation of a high-dimensional…

Provides an applications-oriented view of algorithmic historiography and how it relates to understanding scientific paradigms. Discusses HistCite[TM], a program that allows scholars to identify significant works on a given topic; paradigm shifts; a genealogic approach; citation analyses; correcting variations in citations; and bibliographic…

Reports findings of an Indirect-Collective Referencing (ICR) investigation carried out in a representative sample of the elite physics journal literature, "The Physical Review," in the January 1997 issues of 44 source journals. Findings revealed ICR phenomenon present in all journals, that the quantity of non-indexed ICRs in this literature…

Discusses information visualization and cocitation analysis and demonstrates the use of an integrative approach to visualizing and tracking the development of competing scientific paradigms. Assumes that a cluster of highly cited and cocited scientific publications in a cocitation network represents the core of a predominant scientific paradigm.…

Discussion of author cocitation analysis focuses on Pathfinder Networks (PFNET) where nodes represent authors and links represent weighted paths between nodes, the weights being cocitation counts. Highlights include remapping information science; comparison with principal components analysis; a correlation-based PFNET; and AuthorLink, a Web-based…

Performs an analysis of all 1128 publications produced by scientists during their employment at the University of Texas Institute for Geophysics, thus assessing research performance using as bibliometric indicators such statistics as publications per year, citations per paper, and cited half-lives. Evaluates five different methods for determining…

Reports research on analyzing and visualizing the impact of government funding on the amount and citation counts of research publications. Provides an example using grant and publication data from Behavioral and Social Science Research at the National Institute on Aging (NIA) using the VxInsight[R] visualization tool. (Author/LRW)

Continues previous research on indirect-collective referencing (ICR) in physics literature, focusing on the level of communications and specific degree of documentedness of a communication. Explains ICR as a special kind of scientific referencing, mentioning references that are not indexed and hence not included in the Science Citation Index. (LRW)