OP-KNN: Method and Applications

Table 2

Test error comparison for the 9 data sets with 5 methods.

Regression	Test error
	SVM	OP-ELM	ELM	MLP	OP-KNN
Abalone	4.5	4.9	8.3	4.6	4.8
Ailerons	1.3𝑒−7	2.8𝑒−7	3.3𝑒−8	2.7𝑒−7	2.7𝑒−8
Elevators	6.2𝑒−6	2.0𝑒−6	2.2𝑒−6	2.0𝑒−6	7.5𝑒−5
Auto price	2.8𝑒+7	9.5𝑒+7	7.9𝑒+9	2.2𝑒+7	3.1𝑒+9
Servo	6.9𝑒−1	8.0𝑒−1	7.1	2.2𝑒−1	9.7
Breast cancer	1.2𝑒+3	1.4𝑒+3	7.7𝑒+3	1.5𝑒+3	1.5𝑒+3
Bank	2.7𝑒−2	1.1𝑒−3	6.7𝑒−3	9.1𝑒−4	1.2𝑒−3
Stocks	5.1𝑒−1	9.8𝑒−1	3.4𝑒−1	8.8𝑒−1	9.0𝑒−2
Delve	1.1𝑒+9	9.2𝑒+8	2.5𝑒+9	2.4𝑒+8	6.8𝑒+7