Selection of Machine Learning Models for Oil Price Forecasting: Based on the Dual Attributes of Oil

Table 5

Errors after dimension reduction of LLE.

Neighbors	Error
5	1.07 × 10^−18
10	−9.01 × 10^−19
20	−1.84 × 10^−18
30	6.13 × 10^−18
40	3.15 × 10^−17