public domain https://www.openml.org/data/download/150656/BNG_solar-flare.arff 3 BNG(solar-flare) ARFF active 2014-01-12T11:13:14Z public X-class_flares_production_by_this_region BNG(solar-flare) 2014-01-12T11:13:14Z 90 2 1