Integrated Feature Selection of ARIMA with Computational Intelligence Approaches for Food Crop Price Prediction

Table 21

PIs of the whole food crop prices by using the proposed integrated models over another element, other than ARIMA element.

	(%)	(%)	(%)
(1) ARIMA-ANN over ANN
Rice	34.250	27.273	34.226
Wheat	30.810	21.562	29.598
Corn	2.018	−10.973	1.645
Average PIs	22.359	12.621	21.823
(2) ARIMA-SVR over SVR
Rice	251.772	252.688	236.023
Wheat	4.336	19.483	7.223
Corn	−2.601	−5.525	−3.677
Average PIs	84.502	88.882	79.856
(3) ARIMA-MARS over MARS
Rice	81.359	61.186	78.189
Wheat	20.304	−1.029	17.842
Corn	8.006	2.579	8.587
Average PIs	36.556	20.912	34.873