|
Indicator |
Unit of assessment |
Tools providing the indicator |
Source database |
Citation window |
Weight of citations |
Self-citations |
|---|---|---|---|---|---|---|
|
Impact Factor (IF) |
Journals |
Journal Citation Reports |
Web of Science |
2 years (5 years) |
All citations are weighted equally |
Journal self-citations are included |
|
Eigen Factor (EF) |
Journals |
Eigenfactor.org, Journal Citation Reports |
Web of Science |
5 years |
Weights citations based on the prestige of the citing journal |
Journal self-citations are ignored |
|
Article Influence (AI) |
Journals |
Eigenfactor.org, Journal Citation Reports |
Web of Science |
5 years |
Weights citations based on the prestige of the citing journal |
Journal self-citations are ignored |
|
SCImago Journal Rank Indicator (SJR) |
Journals |
Scimago Journal & Country Rank, Scopus |
Scopus |
3 years |
Weights citations based on the prestige of the citing journal |
Max 33 % journal self-citations are included |
|
Source normalized impact per paper (SNIP) |
Journals |
CWTS Journal Indicators, Scopus |
Scopus |
3 years |
Accounts characteristics of journal's subject field |
Journal self-citations are included |
|
H-index |
Researches, groups, journals, countries, fields, topics etc. |
Scopus, Web of Science, Scimago Journal & Country Rank, Publish or Perish |
Scopus, Web of Science, Google scholar |
Can be defined |
Not weighted |
Included |
|
g-index |
Researches, journals |
Publish or Perish |
Google scholar |
Can be defined |
Not weighted |
Included |
| Field-Weighted Citation Impact (FWCI) | Articles | Scopus, SciVal | Scopus | 3 years | Ratio of the citations in the subject field |
