Institute for Scientific Information

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The Institute for Scientific Information ( ISI ), founded in 1960 by Eugene Garfield , maintains reference indices and uses them to create bibliometric analyzes.

For the Science Citation Index , the Arts and Humanities Citation Index and the Social Sciences Citation Index , footnotes and bibliographies from around 8,000 scientific journals are evaluated. This documents by whom and how often a scientific publication is referenced . Some of the magazines were evaluated back to 1945. The ISI determines an impact factor for the journals evaluated , which is intended to quantify their influence in the respective subject area and is published annually in the Journal Citation Reports.

In 1992 the Thomson Corporation acquired the Institute for Scientific Information and continues it as Thomson Scientific.

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