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International Journal of Fuzzy Systems is Scopus-indexed (Q1, CiteScore 8.3), WoS SCIE. It is covered by India's One Nation One Subscription scheme for reading access. Published by Springer International Publishing AG.
Checked against the index lists dated .
ISSN 1562-2479Verify ISSN ↗2199-3211Verify ISSN ↗
Publisher: Springer International Publishing AG
Cost to publish: About US$3,890 to publish open access (publisher list price, via OpenAlex) — subscription publishing may be free
| Subject area | Rank | Pctile | Q |
|---|---|---|---|
| Computational Theory and Mathematics | 21 / 203 | 89th | Q1 |
| Theoretical Computer Science | 20 / 135 | 85th | Q1 |
| Control and Systems Engineering | 66 / 390 | 83rd | Q1 |
| Software | 99 / 503 | 80th | Q1 |
| Information Systems | 105 / 519 | 79th | Q1 |
| Artificial Intelligence | 122 / 570 | 78th | Q1 |
Not listed in: DOAJ, ABDC, ABS / AJG, FT50, UT Dallas, ONOS (APC covered)
Yes — actively indexed in Scopus, coverage 2004–present, best quartile Q1, CiteScore 8.3.
International Journal of Fuzzy Systems is Q1 in Computational Theory and Mathematics (rank 21 of 203), Q1 in Theoretical Computer Science (rank 20 of 135) and Q1 in Control and Systems Engineering (rank 66 of 390), by CiteScore 2025. It is ranked in 6 subject areas in all.
International Journal of Fuzzy 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 8.3, which places it in quartile Q1 at the 89th percentile of its subject. Its SCImago Journal Rank (SJR, a free Scopus-based metric) is 0.668, quartile Q2, with an H-index of 72.
The publisher lists an article processing charge of about US$3,890 for open access (source: OpenAlex). Many journals also publish by the subscription route at no cost to the author, so confirm on the journal's own website.
International Journal of Fuzzy Systems is published by Springer International Publishing AG. Its print ISSN is 1562-2479 and its online ISSN is 2199-3211.
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 Fuzzy Systems has an h-index of 74 and a 2-year mean of 3.34 citations per paper (OpenAlex). Its Scopus CiteScore is 8.3, quartile Q1. On 2-year citations it ranks #43 of 178 Scopus journals in Computational Theory and Mathematics.
International Journal of Fuzzy Systems published 243 papers in 2025; its busiest recent year was 2024 with 259. 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 99 research articles (2026), authors are most often from China (56.6%), Taiwan (11.1%) and India (5.4%). More than half of recent authorship comes from one country.
Countries are counted fractionally, so a paper by authors from two countries counts half to each.
Scopus status: Active. 22 retracted papers are recorded (9.3 per 1,000 papers). The Problematic Paper Screener flags 9 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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