YAN, Fengying. Research on Stock Index Prediction Based on SARIMA-BP-KPCA+RF Model. Transactions on Computer Science and Intelligent Systems Research, [S. l.], v. 9, p. 507–514, 2025. DOI: 10.62051/1t4vhs76. Disponível em: https://wepub.org/index.php/TCSISR/article/view/5518. Acesso em: 17 aug. 2026.