Table 5. Comparison of accuracy and F1 metrics of evaluated ensemble models on the synthetic data streams.

	DDCWHT	DDCWHTNB	DWMNB	AWENB	DWMHT	AWEHT	OBkNN	OzakNN	OBHT	OzaHT	OBNB	OzaNB	ARFHT	KUEHT
Accuracy
AGRa	0.918	0.879	0.770	0.821	0.810	0.822	0.611	0.662	0.818	0.913	0.816	0.658	0.926	0.943
AGRg	0.896	0.874	0.750	0.800	0.792	0.800	0.600	0.649	0.794	0.845	0.786	0.658	0.897	0.943
SEAa	0.890	0.888	0.876	0.879	0.874	0.878	0.753	0.863	0.871	0.868	0.846	0.854	0.894	0.902
SEAg	0.887	0.884	0.874	0.876	0.872	0.875	0.750	0.860	0.867	0.868	0.845	0.854	0.891	0.910
STGR	0.937	0.923	0.901	0.948	0.947	0.947	0.929	0.945	0.941	0.872	0.924	0.602	0.949	0.962
LED	0.873	0.860	0.831	0.893	0.831	0.893	0.682	0.770	0.768	0.848	0.770	0.698	0.892	0.893
MIXED_BALANCED	0.984	0.964	0.916	0.919	0.973	0.919	0.967	0.976	0.922	0.988	0.912	0.920	0.995	0.998
MIXED_IMBALANCED	0.985	0.964	0.916	0.920	0.922	0.920	0.968	0.976	0.926	0.988	0.909	0.920	0.995	0.998
RBF	0.924	0.882	0.712	0.733	0.712	0.733	0.915	0.940	0.816	0.940	0.719	0.720	0.941	0.954
RBF_DRIFT	0.618	0.601	0.520	0.516	0.516	0.512	0.554	0.572	0.580	0.705	0.544	0.546	0.655	0.788
WAVEFORM	0.840	0.837	0.797	0.830	0.797	0.830	0.762	0.815	0.844	0.855	0.807	0.805	0.843	0.844
WAVEFORM_DRIFT	0.840	0.836	0.797	0.830	0.797	0.830	0.763	0.815	0.843	0.855	0.807	0.805	0.843	0.852
F1
AGRa	0.912	0.869	0.750	0.812	0.810	0.812	0.592	0.616	0.808	0.802	0.773	0.542	0.922	0.944
AGRg	0.888	0.864	0.728	0.787	0.788	0.786	0.580	0.602	0.782	0.835	0.773	0.543	0.890	0.939
SEAa	0.910	0.909	0.900	0.901	0.898	0.901	0.791	0.889	0.895	0.894	0.875	0.885	0.914	0.909
SEAg	0.908	0.906	0.898	0.899	0.896	0.899	0.799	0.886	0.892	0.893	0.874	0.885	0.911	0.905
STGR	0.941	0.928	0.947	0.951	0.949	0.949	0.934	0.947	0.945	0.887	0.930	0.633	0.952	0.963
LED	0.873	0.860	0.832	0.893	0.832	0.893	0.682	0.768	0.768	0.848	0.770	0.693	0.892	0.893
MIXED_BALANCED	0.984	0.964	0.917	0.919	0.973	0.919	0.967	0.976	0.923	0.988	0.912	0.920	0.995	0.998
MIXED_IMBALANCED	0.985	0.966	0.923	0.925	0.928	0.926	0.969	0.977	0.928	0.989	0.914	0.927	0.996	0.998
RBF	0.923	0.881	0.716	0.738	0.716	0.738	0.916	0.941	0.816	0.939	0.721	0.720	0.941	0.954
RBF_DRIFT	0.620	0.619	0.545	0.533	0.521	0.517	0.559	0.585	0.578	0.703	0.577	0.595	0.644	0.788
WAVEFORM	0.839	0.834	0.784	0.824	0.784	0.824	0.762	0.814	0.843	0.854	0.796	0.792	0.842	0.844
WAVEFORM_DRIFT	0.840	0.834	0.784	0.824	0.784	0.824	0.763	0.814	0.842	0.854	0.795	0.792	0.842	0.852