Optimization Method for Crop Growth Characteristics Based on Improved Locality Preserving Projection

Table 3

Performance comparison among algorithms.

Dimension reduction algorithms	Cabbage		Lettuce
	Optional; dimensionality	Accuracy/%	Optional; dimensionality	Accuracy/%
PCA	55	90.25	45	94.32
2DPCA	48	94.35	41	95.86
ICA	50	92.14	43	94.88
KPCA	46	94.88	37	96.01
LPP	40	96.41	34	97.65
Improved LPP	37	96.77	24	97.64