Improving forecasting accuracy using quantile regression neural network combined with unrestricted mixed data sampling. Journal of the Nigerian Society of Physical Sciences, [S. l.], v. 5, n. 4, p. 1394, 2023. DOI: 10.46481/jnsps.2023.1394. Disponível em: https://www.journal.nsps.org.ng/index.php/jnsps/article/view/1394.. Acesso em: 4 oct. 2024.