Leguen-deVarona, I. ., J. . Madera, Y. . Martínez-López, and J. . Carlos Hernández-Nieto. “Over-Sampling Imbalanced Datasets Using the Covariance Matrix”. EAI Endorsed Transactions on Energy Web, vol. 7, no. 27, Apr. 2020, p. e2, doi:10.4108/eai.13-7-2018.163982.