Privacy-Preserving Sensing and Two-Stage Building Occupancy Prediction Using Random Forest Learning

Table 2

Analysis of feature importance and the number of trees in the Random Forest.

Number of trees	Feature importance
	No. active pixels	Size of largest blob	No. blobs
10	0.35	0.18	0.46
50	0.44	0.15	0.33
100	0.48	0.14	0.36
500	0.43	0.16	0.4
1000	0.43	0.16	0.39