Table 4.

Prediction results of all known sigma-factor promoters of B. subtilis using different combination of vw Z-curve features**

Number*	Data set-5				Data set-6
	4095	872	405	340	4095	740	490
Results (%)
	80.91	92.73	95.30	95.76	66.97	94.55	98.79
	81.82	91.97	94.24	95.91	73.03	95.76	99.39
	81.36	92.35	94.77	95.83	70.00	95.15	99.09

*Number: number of selected vw Z-curve variables.

**The average accuracies of the vw Z-curve methods with 340 parameters for Data set-5 and 490 parameters for Dataset-6, which were the best ones among the algorithms evaluated here, were shown in boldface.