Citation Topics re-clustering and UN Sustainable Development Goals mapping update
The Citation Topics schema has been updated as part of the annual re-clustering based on documents citations. The 2025 schema update is available on the Citation Topics page. As result the SDG to Micro-Topic mapping has been updated as well, and the new mapping is available to download in the UN Sustainable Development Goals schema page.
- 10 Macro topics - No changes
- 326 Meso topics - No changes
- 2478 Micro Topics:
- 31 new topics
- 1441 for which the label changed
- 1006 labels remained unchanged
Learn more about Citation Topics
Association
The Carnegie Classification has released updated research activity categories for 2025, based on revised evaluation criteria. The new designations include:
- Research 1 (R1): Institutions with very high research expenditures and doctoral degree production — 187 institutions.
- Research 2 (R2): Institutions with high research expenditures and doctoral degree production — 139 institutions.
- Research Colleges and Universities (RCU): Institutions meeting research criteria that do not fall under R1 or R2 — 216 institutions.
To support continuity and comparison, the Pre-2025 Carnegie Classifications will continue to be accessible alongside the updated designations, recognizing that both the category definitions and institutional groupings have undergone significant changes.
- US: Carnegie Classification - Research 1: Very High Spending and Doctorate Production (R1)
- InCites includes 186 as “Purdue University Indianapolis”
- US: Carnegie Classification - Research 2: High Research Spending and Doctorate Production
- US: Carnegie Classification - Research Colleges and Universities
InCites Data Refresh
The April data refresh has been released today, which includes Web of Science data up to the 31st March 2025.
Note: InCites Data Schedule is updated for 2025. Learn more