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Object

Science Citation Index

Theme

Citation indexing

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Abstract

Over a 35-year period, Irving H. Sher played a critical role in the development and implementation of the Science Citation Index and other ISI products. Trained as a biochemist, statistician, and linguist, Sher brought a unique combination of talents to ISI as Director of Quality Control and Director of Research and Development. His talents as a teacher and mentor evoked loyalty. He was a particularly inventive but self-taught programmer. In addition to the SCI, Social Sciences Citation Index, and Arts and Humanities Citation Index,

Date

16.12.2001 14:01:22

Object

Science Citation Index
Social Sciences Citation Index
Arts and Humanities Citation Index

Theme

Citation indexing

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Abstract

ISI is currently offering its citation index databases for access by Intranets via its proprietary WWW browser

Object

Science Citation Index
Social Sciences Citation Index

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Abstract

Announces the availability of the Web of Science, a proprietary Web browser providing intranet access to the Citation Index databases from ISI. The new browser interface will allow researcher to browse indexed information and perform further research. Describes search options

Object

Science citation index
Social sciences citation index

Theme

Citation indexing

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Theme

Citation indexing

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Abstract

Purpose - The purpose of this paper is to provide an overview of new citation-enhanced databases and to identify issues to be considered when they are used as a data source for performing citation analysis. Design/methodology/approach - The paper reports the limitations of Thomson Scientific's citation indexes and reviews the characteristics of the citation-enhanced databases Chemical Abstracts, Google Scholar and Scopus. Findings - The study suggests that citation-enhanced databases need to be examined carefully, with regard to both their potentialities and their limitations for citation analysis. Originality/value - The paper presents a valuable overview of new citation-enhanced databases in the context of research evaluation.

Object

Science citation index
Social sciences citation index
Arts and humanities citation index

Theme

Citation indexing

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Object

Science Citation Index

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Abstract

Literature citation analysis plays a very important role in bibliometrics and scientometrics, such as the Science Citation Index (SCI) impact factor, h-index. Existing citation analysis methods assume that all citations in a paper are equally important, and they simply count the number of citations. Here we argue that the citations in a paper are not equally important and some citations are more important than the others. We use a strength value to assess the importance of each citation and propose to use the regression method with a few useful features for automatically estimating the strength value of each citation. Evaluation results on a manually labeled data set in the computer science field show that the estimated values can achieve good correlation with human-labeled values. We further apply the estimated citation strength values for evaluating paper influence and author influence, and the preliminary evaluation results demonstrate the usefulness of the citation strength values.

Date

22. 8.2014 17:12:35

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Date

13. 7.2008 19:53:22

Theme

Citation indexing

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Abstract

A citation index is a bibliographic database that provides citation links between documents. The first modern citation index was suggested by the researcher Eugene Garfield in 1955 and created by him in 1964, and it represents an important innovation to knowledge organization and information retrieval. This article describes citation indexes in general, considering the modern citation indexes, including Web of Science, Scopus, Google Scholar, Microsoft Academic, Crossref, Dimensions and some special citation indexes and predecessors to the modern citation index like Shepard's Citations. We present comparative studies of the major ones and survey theoretical problems related to the role of citation indexes as subject access points (SAP), recognizing the implications to knowledge organization and information retrieval. Finally, studies on citation behavior are presented and the influence of citation indexes on knowledge organization, information retrieval and the scientific information ecosystem is recognized.

Object

Science Citation Index

Theme

Citation indexing

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Abstract

This study examines the differences between Scopus and Web of Science in the citation counting, citation ranking, and h-index of 22 top human-computer interaction (HCI) researchers from EQUATOR - a large British Interdisciplinary Research Collaboration project. Results indicate that Scopus provides significantly more coverage of HCI literature than Web of Science, primarily due to coverage of relevant ACM and IEEE peer-reviewed conference proceedings. No significant differences exist between the two databases if citations in journals only are compared. Although broader coverage of the literature does not significantly alter the relative citation ranking of individual researchers, Scopus helps distinguish between the researchers in a more nuanced fashion than Web of Science in both citation counting and h-index. Scopus also generates significantly different maps of citation networks of individual scholars than those generated by Web of Science. The study also presents a comparison of h-index scores based on Google Scholar with those based on the union of Scopus and Web of Science. The study concludes that Scopus can be used as a sole data source for citation-based research and evaluation in HCI, especially when citations in conference proceedings are sought, and that researchers should manually calculate h scores instead of relying on system calculations.

Object

h-index

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Object

Science citation index
Social sciences citation index

Theme

Citation indexing

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Abstract

This article illustrates a numer of uses for Science Citation Index as an unusual reference tool. It is shown to be useful beyond its intended purpose. Its value is limited only by one's imagination. Inaccessible information can be made readily available by creatively using this well-known but under-used reference tool

Object

Science citation index

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Abstract

The invention of the citation index was credited to Shepard (1873) and Shapiro described a legal citation index published in 1743. A similar index was embedded in the Talmud 2 centuries earlier (1546). The 1st Hebrew citation index to a printed book is dated 1511. The earliest Hebrew manuscript citation index, ascribed to Maimonides, dates from the 12th century. Considerable knowledge was assumed for users of these tools. The substantial knowledge of their compilers contrats with the semi-automatic production of modern citation indexes. The terms citation, quotation, reference, cross-reference, locator, and concordance are employed inconsistently in publications about Hebrew indexes. There is a lack of citation links between the secondary literature on Hebrew indexes and that of citation analysis

Theme

Citation indexing

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Abstract

Aggregated journal-journal citations can be used for mapping the intellectual organization of the sciences in terms of specialties because the latter can be considered as interreading communities. Can the journal-journal citations also be used as early indicators of change by comparing the files for two subsequent years? Probabilistic entropy measures enable us to analyze changes in large datasets at different levels of aggregation and in considerable detail. Compares Journal Citation Reports of the Social Science Citation Index for 1999 with similar data for 1998 and analyzes the differences using these measures. Compares the various indicators with similar developments in the Science Citation Index. Specialty formation seems a more important mechanism in the development of the social sciences than in the natural and life sciences, but the developments in the social sciences are volatile. The use of aggregate statistics based on the Science Citation Index is ill-advised in the case of the social sciences because of structural differences in the underlying dynamics.

Date

6.11.2005 19:02:22

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Footnote

Ein Leserbrief zu Sinn und Nutzen des Science Citation Index als Erwiderung auf einen Beitrag von A. Octavio in Mathematical intelligencer 18(1996) no.4, S.9-11

Theme

Citation indexing

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Abstract

The Web of Science, an online database of bibliographic information produced by Thomson Reuters- draws its real value from the scholarly citation index at its core. By indexing the cited references from each paper as a separate part of the bibliographic data, a citation index creates a pathway by which a paper can be linked backward in time to the body of work that preceded it, as well as linked forward in time to its scholarly descendants. This entry provides a brief history of the development of the citation index, its core functionalities, and the way these unique data are provided to users through the Web of Science.

Object

Science Citation Index
Social Sciences Citation Index
Arts and Humanities Citation Index

Theme

Citation indexing

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Abstract

The Science Citation Index Compact Disc Edition (SCI CDE) is a multidisciplinary database providing complete bibliographic information on cited references for each article, meeting, abstract, editorial, review, footnote and letter. Trough a CD-ROM version produced by the Institute for Scientific Information (ISI), the related records feature enables extended cross referencing. Describes ISI's improvements to searching the databses, covering the search engine and by comparing CSI CDE with MEDLINE on CD-ROM. Assesses SCI CDE's special options and documentation

Object

Science Citation Index

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Object

Science citation index