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International Journal of Uncertainty, Fuzziness and Knowledge-Based Systems is Scopus-indexed (Q2, CiteScore 2.5), WoS SCIE. It is covered by India's One Nation One Subscription scheme for reading access. Published by World Scientific.
Checked against the index lists dated .
ISSN 0218-4885Verify ISSN ↗1793-6411Verify ISSN ↗
Publisher: World Scientific
Cost to publish: No APC data — check the publisher
| Subject area | Rank | Pctile | Q |
|---|---|---|---|
| Mathematics (miscellaneous) | 31 / 119 | 74th | Q2 |
| Applied Mathematics | 293 / 680 | 56th | Q2 |
| Artificial Intelligence | 305 / 570 | 46th | Q3 |
| Information Systems | 284 / 519 | 45th | Q3 |
| Control and Systems Engineering | 218 / 390 | 44th | Q3 |
| Theoretical Computer Science | 77 / 135 | 43rd | Q3 |
| Software | 316 / 503 | 37th | Q3 |
Not listed in: DOAJ, ABDC, ABS / AJG, FT50, UT Dallas, ONOS (APC covered)
Yes — actively indexed in Scopus, coverage 1996–present, best quartile Q2, CiteScore 2.5.
International Journal of Uncertainty, Fuzziness and Knowledge-Based Systems is Q2 in Mathematics (miscellaneous) (rank 31 of 119), Q2 in Applied Mathematics (rank 293 of 680) and Q3 in Artificial Intelligence (rank 305 of 570), by CiteScore 2025. It is ranked in 7 subject areas in all.
International Journal of Uncertainty, Fuzziness and Knowledge-Based Systems is indexed in the Science Citation Index Expanded, so it may have a Journal Impact Factor in Clarivate's Journal Citation Reports. JCR is paid, so check it for the current value. The closest free measure is its Scopus CiteScore 2.5, which places it in quartile Q2 at the 74th percentile of its subject. Its SCImago Journal Rank (SJR, a free Scopus-based metric) is 0.312, quartile Q3, with an H-index of 69.
International Journal of Uncertainty, Fuzziness and Knowledge-Based Systems is published by World Scientific. Its print ISSN is 0218-4885 and its online ISSN is 1793-6411.
Yes. It is part of the One Nation One Subscription (ONOS) national subscription, so readers at participating Indian institutions get its full text. ONOS does not cover its article processing charge.
Yes — indexed in the Science Citation Index Expanded.
No — it is not registered as an open-access journal in DOAJ or Scopus.
International Journal of Uncertainty, Fuzziness and Knowledge-Based Systems has an h-index of 72 and a 2-year mean of 1.08 citations per paper (OpenAlex). Its Scopus CiteScore is 2.5, quartile Q2. On 2-year citations it ranks #41 of 108 Scopus journals in Mathematics (miscellaneous).
International Journal of Uncertainty, Fuzziness and Knowledge-Based Systems published 65 papers in 2025; its busiest recent year was 2020 with 76. 2026* is the year so far.
h-index, i10-index and 2-year mean citedness are open, licence-clear metrics from OpenAlex — not a proprietary impact factor. The subject rank counts only journals that OpenAlex has a figure for; it is not a Scopus or Clarivate ranking. Updated 2026-10-14.
In its latest 76 research articles (2025–2026), authors are most often from India (38.6%), China (27%) and Spain (4.6%).
Countries are counted fractionally, so a paper by authors from two countries counts half to each.
Scopus status: Active. 2 retracted papers are recorded (0.9 per 1,000 papers). The Problematic Paper Screener flags 6 of its papers. These are indicators to check, not findings against the journal.
Retractions from OpenAlex; flags from the Problematic Paper Screener (Cabanac, Labbé & Magazinov, CC BY), 2026-09-21 export. A flag marks a paper for a closer look; it is not a finding against the journal.
Index data is curated from public sources (Scopus, Web of Science, ABDC, FT50, UT Dallas, DOAJ). CiteScore and quartiles reflect the latest available Scopus release. Always verify a journal's current status on its official source before submitting.
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