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Table 7 The effect of the number of features of different methods on the detection accuracy

From: PCA-Kalman: device-free indoor human behavior detection with commodity Wi-Fi

Different methods

Impacts of feature number on detection accuracy

2

3

4

5

6

PCA-Kalman

0.948

0.958

0.961

0.971

0.966

FIMD

0.934

0.948

0.942

0.933

0.935