Retraction notice to “A prediction model for the performance of solar photovoltaic-thermoelectric systems utilizing various semiconductors via optimal surrogate machine learning methods” [Eng. Sci. Technol. Int. J. 40 (2023) 101363] (Engineering Science and Technology, an International Journal (2023) 40, (S221509862300040X), (10.1016/j.jestch.2023.101363))

This article has been retracted: please see Elsevier Policy on Article Withdrawal (http://www.elsevier.com/locate/withdrawalpolicy). This article has been retracted at the request of the Editor-in-Chief. In investigating concerns regarding late-stage authorship changes to this article, the editors reached out to the authors for an explanation. In addition to the concerns regarding the late-stage authorship changes the editors were unable to verify the contribution of any of the added authors. Abdullah Albaker, Ibrahim Alatawi, and were added to this paper after the first round of revision. Abdulaziz Almalaq was added after the second round of revision. Hisham Alghamdi, Theyab Alsenani, Ahmed Alsafran, Mohammed AlAqil, Mostafa A.H. Abdelmohimen, and Mohammad Alkhedher were added post acceptance. All these changes were made without explanation and without exceptional approval by the handling Editor, which is contrary to the journal policy on changes to authorship. The authors were unable to provide a reasonable explanation for either of the issues raised. The editor therefore feels that the findings of the manuscript cannot be relied upon and that the article needs to be retracted.