The Journal of Intelligent and Fuzzy Systems (JIFS) had retracted 1,561 articles as part of a cleanup operation on likely paper mill activity. The journal, which Sage acquired in November 2023 when it bought IOS Press, had previously retracted a batch of 49 articles in October 2021. That brings its retraction total up to 1,610. The journal charges a fee for all accepted papers; separate fees apply for open access.
The current publication fee for JIFS is €300 / US$300. Retraction Watch found previous years’ publication charges on the Internet Archive’s Wayback Machine. Putting that information together with the number of retracted articles by publication year means the journal made $427,850 off of papers it later retracted.
