Missing Value Estimation Methods Research for Arrhythmia Classification Using the Modified Kernel Difference-Weighted KNN Algorithms

Table 2

Comparison of the classification accuracy (%) achieved w.r.t. the imputation methods and classifiers.

Proportion		0.3%	10%	20%	30%	40%	50%	60%	70%
KNN	X0	59.07	55.75	54.65	54.87	53.98	54.20	53.98	54.42
	MEAN	58.19	57.08	55.53	55.75	54.42	53.98	53.76	54.65
	PCA	58.19	57.96	55.53	56.19	54.65	54.65	53.76	53.76
	RPCA	58.85	57.52	56.86	57.30	55.09	54.42	54.42	55.09
DS-WKNN	X0	60.84	59.96	55.75	54.42	52.88	53.76	52.43	51.99
	MEAN	61.50	59.29	58.19	56.42	55.31	54.20	53.54	53.32
	PCA	61.06	60.18	58.41	58.63	55.31	55.31	53.32	50.88
	RPCA	59.96	58.63	58.63	59.29	54.20	55.53	57.08	54.42
DF-WKNN	X0	70.58	66.15	63.27	59.73	58.85	56.86	56.19	54.20
	MEAN	71.90	69.03	68.14	65.49	61.73	59.29	59.29	56.19
	PCA	70.35	69.03	66.59	65.49	61.28	61.28	55.53	50.44
	RPCA	70.80	67.92	65.93	65.49	62.17	61.06	60.40	57.08
KDF-WKNN	X0	70.35	66.15	63.27	60.18	58.19	56.86	56.19	54.65
	MEAN	71.68	69.03	67.92	65.71	61.73	59.29	59.29	56.19
	PCA	70.58	68.81	67.04	65.93	61.50	61.50	55.09	51.77
	RPCA	70.80	67.70	65.93	64.60	61.95	61.73	60.18	56.86
MKDF-WKNN	X0	71.90	67.04	63.72	59.96	60.18	58.85	57.30	53.98
	MEAN	73.01	70.58	68.14	66.37	62.17	58.41	59.51	54.87
	PCA	71.68	69.91	69.03	66.37	60.62	60.62	55.53	49.56
	RPCA	71.90	70.58	67.70	66.15	64.38	60.84	61.28	56.42