Uçar, Muhammed KürşadBozkurt, Mehmet RecepBilgin, CahitPolat, Kemal2024-09-252024-09-2520240941-0643https://doi.org/10.1007/s00521-024-10068-7https://hdl.handle.net/20.500.12491/12435The Editor-in-Chief and the publisher have retracted this article. The article was submitted to be part of a guest-edited issue. An investigation by the publisher found a number of articles, including this one, with a number of concerns, including but not limited to compromised editorial handling and peer review process, inappropriate or irrelevant references or not being in scope of the journal or guest-edited issue. Based on the investigation's findings the Editor-in-Chief therefore no longer has confidence in the results and conclusions of this article. Authors Muhammed Kürşad Uçar, Mehmet Recep Bozkurt and Kemal Polat disagree with this retraction. Author Cahit Bilgin has not responded to correspondence regarding this retraction. © The Natural Computing Applications Forum 2024.eninfo:eu-repo/semantics/openAccessRetraction note: Automatic detection of respiratory arrests in OSA patients using PPG and machine learning techniques (Neural Computing and Applications, (2017), 28, 10, (2931-2945), 10.1007/s00521-016-2617-9)Erratum10.1007/s00521-024-10068-73625159452-s2.0-85200001164Q1