A Novel ELM Ensemble for Time Series Prediction. - Zhen Li; Karl Ratner; Edward R. Ratner; Kallin Khan; Kaj-Mikael Björk; Amaury Lendasse (ELM, 2018)

ELM-SOM+: A continuous mapping for visualization. - Renjie Hu; Karl Ratner; Edward R. Ratner; Yoan Miche; Kaj-Mikael Björk; Amaury Lendasse (Neurocomputing, 2019)