Optimization Of K-Nearest Neighbor Algorithm Using Information Gain And Hyperparameter Tuning In Adult Male Fertility Classification. Recursive Journal of Informatics, [S. l.], v. 4, n. 1, p. 21–30, 2026. DOI: 10.15294/rji.v4i1.14868. Disponível em: https://journal.unnes.ac.id/journals/rji/article/view/14868. Acesso em: 7 apr. 2026.