The retraction of "a final batch" of 678 articles concludes Sage’s investigation into questionable peer review, citation manipulation, and other signs of paper mill activity at one of its journals, according to the publisher. Sage acquired Journal of Intelligent and Fuzzy Systems (JIFS) in November 2023 when it bought IOS Press. The indexing company Clarivate raised concerns about the quality of the articles in the journal shortly after and put the journal’s indexing on hold.

The 1,561 retractions mark the most retractions from a single journal, according to the Retraction Watch Database. Also high on the list are journals with mass retractions following acquisitions, including the Journal of Health Care Engineering with 1,074 retractions and Computational and Mathematical Methods in Medicine with 1,065, both Hindawi journals acquired by Wiley (and later shuttered). Cureus has had 99 retractions since Springer Nature acquired them.

 
Source https://retractionwatch.com/2025/04/17/sage-journal-intelligent-fuzzy-systems-retracts-678-more-papers/

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