Table 11 List of selected features using an evolutionary search algorithm and correlation-based feature selection

Feature selection with evolutionary search algorithms-Dataset 1

 Ankle

Accelerometer

Median(X), Min(Y), Energy(X), STD(X), Peak-amplitude(Y), Percentile(X), Mean(X), Energy(X), Peak-amplitude(Z), CRV(Z), Min(Z), VAR(Y), STD(Y), CRV(Z), Harmonic-Mean(Y), Signal-power(X), Signal-power(Y)

Gyroscope

Signal-power(Z), Max(Z), STD(Z), Harmonic-mean(z), CRV(Z), Peak-amplitude(X),, peak-amplitude(Y),, peak-amplitude(Z), STD(Y), signal-power(Y), Harmonic-mean(Y), median(X), VAR(Z), CRV(Y), CRV(X)

 Chest

Accelerometer

Signal-Power(Y), Min(Y), Peak-Amplitude(Y), Skewness(Y), CRV(Y), Energy(Y), Min(Z), Peak-Amplitude(X), CRV(Z), Max(X), Percentile(Y), CRV(X), VAR(Y), Energy(Z), Median(Z)

Gyroscope

CRV(Y), Signal-power(Y), STD(Y), Skewness(Y), Max(Y), Median(Y), Min(Y), ZCR(Z), Signal-power(Z), CRV(Z), IQR(Z), median(X), Peak-amplitude(X), Signal-power(X), IQR(Y), Peak-amplitude(Y)

 Wrist

Accelerometer

Min(X), Max(Y), Entropy(Y), CRV(Y), Signal-power(Y), Peak-amplitude(X), Min(Y), Signal-power(X), Harmonic-mean(Z), Median(Y), Energy(X), Energy(Z), CRV(X), VAR(X), CRV(Z), Median(X)

Gyroscope

CRV(Z), Signal-power(Y), CRV(Y), STD(Z), IQR(X), Signal-power(Z), IQR(Y), Peak-amplitude(X), Percentile(X), Mean(X), IQR(Z), Peak-amplitude(Y), Signal-power(X), Min(Z), Min(X), VAR(Z), Mean(Y)

Feature selection with evolutionary search algorithm-Dataset 2

 Ankle

Accelerometer

Median(Z), Harmonic-Mean(Y), min(Y), CRV(Y), Energy(Y) Signal-power(Y), CRV(Z), Signal-power(Z), max(Y), max(Y), median(Y), VAR(Y), percentile(Y), Max(X), CRV(X), Harmonic-Mean(Z), mean(X)

Gyroscope

Energy(Z), CRV(Z), Min(Y), Energy(X), Median(Y), VAR(Y), Max(X), Median(Z), CRV(X), Energy(Y), Min(Z), percentile(Z), Signal-power(Z), Max(Y), Median(X), Skewness(Z)

Magnetometer

Entropy(X), max(X), CRV(X), Median(X), Min(X), Signal-power(X), Skewness(X), Energy(Z), Median(Y), STD(Y), STD(Z), Energy(Y), Percentile(Y), min(Y), Signal-power(Z), Peak-amplitude(X)

 Wrist

Accelerometer

VAR(Y), Signal-power(Y), Min(Y), Median(Y), Median(Z), Min(X), VAR(X), Mean(X), Min(Z), Energy(Z), max(Z), CRV(Z), Energy(X), Max(X),

Gyroscope

Median(Y), VAR(Y), Signal-power(Y), Min(X), Percentile(X), Median(X), Median-F(Z), Max(Z), Percentile(Z), CRV(Z), Energy(Y), Energy(X)

Magnetometer

Energy(X), STD(X), Max(X), Min(X), Median(X), Peak-amplitude(Z), CRV(X), Max(Y), Peak-amplitude(X), STD(Z), Energy(Z), Peak-amplitude(Y), Median(Z), CRV(Z), Median(Y), Signal-power(Y), Mean(Y), Percentile(Y), VAR(Y), Signal-power(Z), Mean(X)