The Web of Science platform is owned by Clarivate Analytics. Until 2017, the IP&Science. Thomson Reuters’ Intellectual Property and Science is a continuation of the scientific citation indices proposed by Eugene Garfield in the 1950s and created by the Institute for Scientific Information since 1964. Since 1997, three specialized scientific citation indices have been combined on a web platform called Web of Science.
Today, the Web of Science platform hosts 15 databases created by Clarivate Analytics and its partners. In total, the platform indexes more than 33 thousand publications from all disciplines since 1864.
The main part of the collection is the Web of Science Core Collection (WoSCC), which consists of the Science Citation Index Expanded (SCIE), Social Sciences Citation Index (SSCI), and Art and Humanities Citation Index (AHCI) indices of scientific citations of periodicals in the natural and technical sciences. Since 2015, the WoSCC has been expanded by the multidisciplinary Emerging Source Citation Index (ESCI), and the archive is extended to 2005.
WoSCC also presents citation indices of the best conferences Conference Proceedings Citation Index (CPCI) and monographs Book Citation Index BkCI and two chemical indices: Current Chemical Reactions (CCR-EXPANDED) and Index Chemicus (IC).