The Science Citation Index (SCI) is a database of citations to articles published in scientific and technical journals, originally produced by the Institute for Scientific Information (ISI). Its expanded edition is the Science Citation Index Expanded (SCIE). The Social Sciences Citation Index (SSCI) covers social science citations, while the Arts & Humanities Citation Index (A&HCI) covers arts and humanities citations.
| Category | SCI | SCI Expanded | SSCI | A&HCI |
|---|---|---|---|---|
| Search | Search | Search | Search | Search |
| Browse Journals | View | View | View | View |
| View subjective category | View | View | View | View |
| View journal changes | View | View | View | View |
