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. 2021 Mar 29;21(7):2372. doi: 10.3390/s21072372

Table 2.

Significant feature list for short duration of drowsy driving (SD) data.

Type Name p-Value Type Name p-Value
Brake Mean abs change 0.003 SWV Mean abs change 0.022
Brake Linear trend 0.004 Brake Approximate entropy 0.024
Brake Mean 0.004 Throttle CID ce 0.025
Brake Ratio beyond r sigma 0.006 Throttle Change quantile 0.026
SWV Kurtosis 0.007 Brake Change quantile 0.027
Brake Index mass quantile 0.008 SWV AR coefficient 0.029
Brake Longest strike below mean 0.009 Brake C3 lag 0.029
Throttle Linear trend 0.011 SWA AR coefficient 0.031
Brake Count below mean 0.012 SWV Change quantiles 0.032
Brake Longest strike above mean 0.012 SWV Mean abs change 0.032
Brake Number cwt peaks 0.012 Brake Ratio value num. to time series 0.032
SWA CID ce 0.013 Brake Absolute sum of changes 0.033
Throttle Agg linear trend 0.013 SWV Skewness 0.034
Brake Pct. of reoccurring data points 0.013 SWV Ratio beyond r sigma 0.034
Brake CID ce 0.014 Brake Large standard deviation 0.034
Brake Partial autocorrelation 0.014 Brake Sum values 0.040
SWA Change quantiles 0.015 SWV FFT coefficient 0.041
Brake Autocorrelation 0.015 Brake Augmented dickey fuller 0.041
Throttle FFT coefficient 0.016 Brake Count above mean 0.041
SWV Standard deviation 0.017 Brake Sum of reoccurring data points 0.041
SWV Variance 0.017 Brake Number crossing 0.042
SWA Number crossing 0.017 Brake Abs energy 0.043
Brake Pct. of reoccurring values 0.017 Brake First location of maximum 0.043
SWV Linear trend 0.018 Brake Standard deviation 0.043
Brake Symmetry looking 0.018 Brake Variance 0.043
Brake FFT aggregated 0.019 Brake Binned entropy 0.046
Brake FFT coefficient 0.021 Brake Spkt welch density 0.046
Brake Value count 0.021 Brake Sum of reoccurring values 0.047
SWV Absolute sum of changes 0.022