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Complex Systems is Scopus-indexed (Q4, CiteScore 0.7), WoS ESCI. Published by Complex Systems Publications, Inc.
Checked against the index lists dated .
ISSN 0891-2513Verify ISSN ↗
Publisher: Complex Systems Publications, Inc
Cost to publish: No APC data — check the publisher
| Subject area | Rank | Pctile | Q |
|---|---|---|---|
| Control and Systems Engineering | 346 / 390 | 11th | Q4 |
| Computer Science (all) | 225 / 241 | 6th | Q4 |
Not listed in: DOAJ, ABDC, ABS / AJG, FT50, UT Dallas, ONOS (subscription), ONOS (APC covered)
Yes — actively indexed in Scopus, coverage 2012–present, best quartile Q4, CiteScore 0.7.
Complex Systems is Q4 in Control and Systems Engineering (rank 346 of 390) and Q4 in Computer Science (all) (rank 225 of 241), by CiteScore 2025.
Complex Systems is indexed in the Emerging Sources Citation Index, 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 0.7, which places it in quartile Q4 at the 11th percentile of its subject. Its SCImago Journal Rank (SJR, a free Scopus-based metric) is 0.129, quartile Q4, with an H-index of 13.
Complex Systems is published by Complex Systems Publications, Inc. Its ISSN is 0891-2513.
Yes — indexed in the Emerging Sources Citation Index.
No — it is not registered as an open-access journal in DOAJ or Scopus.
Complex Systems has an h-index of 48 and a 2-year mean of 8.07 citations per paper (OpenAlex). Its Scopus CiteScore is 0.7, quartile Q4. On 2-year citations it ranks #16 of 306 Scopus journals in Control and Systems Engineering.
Complex Systems published 20 papers in 2025; its busiest recent year was 2024 with 37. 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 56 research articles (2021–2026), authors are most often from United States (21.1%), India (17.9%) and Japan (7.1%).
Countries are counted fractionally, so a paper by authors from two countries counts half to each.
Scopus status: Active. No retracted papers are recorded. The Problematic Paper Screener flags none 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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