Science Citation Index (SCI ®) is a citation index originally produced by the Institute for Scientific Information (ISI) in 1960, which is now owned by Thomson Scientific. The online version (Science Citation Index Expanded) covers 6,400 of the world's leading journals of science and technology, but mainly those in the English language. It is made available online through the Web of Science database, a part of the Web of Knowledge collection of databases. (There are also CD and printed editions, covering a smaller number of journals.) This database allows a researcher to identify which later articles have cited any particular earlier article, or cited the articles of any particular author, or determine which articles have been cited most frequently. Note that the actual years available in a particular library will depend upon the amount that the library has paid. A citation index is an index of citations between publications, allowing the user to easily establish which later documents cite which earlier documents. ... The Institute for Scientific Information (ISI) was founded by Eugene Garfield in 1960. ... A journal (through French from late Latin diurnalis, daily) is a daily record of events or business. ... Part of a scientific laboratory at the University of Cologne. ... By the mid 20th century humans had achieved a level of technological mastery sufficient to leave the surface of the planet for the first time and explore space. ... Web of Science is an online academic database provided by Thomson Scientific. ... Web of Science ® is an online academic database provided by Thomson Scientific. ...
The Arts & Humanities Citation Index (A&HCI) is the registered trademark for a citation index of over 1,000 of the worlds leading arts and humanities journals. ... The Impact factor, very often abbreviated IF, is a measure of the citations to science and social science journals. ...
A citationindex is an index of citations between publications, allowing the user to easily establish which documents cite which other documents.
While citationindexes were originally designed for information retrieval purposes, they are increasingly used for bibliometrics and other studies involving research evaluation.
The use of citation counts to rank journals was a technique used in the early part of the nineteenth century but the measurement of these links to rank authors and papers was pioneered by Eugene Garfield at the Institute for Scientific Information.
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