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Table 8 Features after subset selection SFS and FMS for both corpora: acted AS and natural NS speech

From: Efficiency of chosen speech descriptors in relation to emotion recognition

  AS k-NN SFS AS SVM SFS AS FMS NS k-NN SFS NS SVM SFS NS FMS
f 0 Mean; quartile: 1, 3; median; interquartile; skewness; variation rate Mean; median; std; range; interquartile; kurtosis; variation rate; rising and falling slope mean Mean; max; min; quartile: 1, 3; interquartile; kurtosis; median; range; rising range max/mean; falling range max/min; std; rising slope max/min; Mean; median; max; range; quartile: 1, 3; interquartile; kurtosis; skewness; variation rate Mean; median; range Max; mean; std; median, range; quartile: 1, 3; interquartile; rising range max/mean; falling range mean
f 1f 3 Mean: 1, 2; max: 1, 3; median: 2; min: 2, 3; std: 3 Mean: 1; max: 1 Mean: 2, 3; max: 2, 3; min: 2, 3; median: 2, 3 Mean: 1, 2; max: 2; median: 1, 2; min: 3; std: 3 Mean: 1; max: 1 Mean: 3; max: 1, 2, 3; median: 2, 3; min: 2, 3; std: 1
En Mean, median, std Max, min, range Median, std Max, min, median, std, range Max, min, median, std, range Max, mean, std, range
LPC Mean: 2–11 Mean: 5, 6, 7, 12 Mean/median /max/min: 3–5; Mean: 2, 3, 4, 7, 9; median: 2 Mean: 2, 4, 5, 7; median: 7 Mean/median /max/min: 3–5;
BFCC Mean: 1, 6, 10; median: 1, 6; max: 1; min: 1, 6 Median: 1, 3; max: 1, 3, 4; min: 1, 6, 8 Mean: 1, 3, 5, 6; median: 1, 5, 6, 7; min: 1, 2, 4, 3, 5, 6, 7, 8 Mean: 1, 4, 5, 6, 7, 8, 9, 11, 12; median: 1, 2, 3, 4, 5, 8; std: 1; max: 1, 4, 12; min: 2 Mean: 7; median: 2, 3, 5; std: 1, 2, 3, 4, 5; max: 1, 4, 5, 6, 10, 12; min: 1, 3, 4, 5, 6, 10 Mean: 1, 4, 5, 6; median: 1, 2, 4, 3, 5, 7; max: 1, 2, 3, 4, 5, 6, 7, 8; min: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10
MFCC Mean: 1, 6, 10, 11, 12; std: 12; median: 1, 6; max: 1, 7; min:1 Mean:1; max: 1, 11, 12; min: 8, 10, 12 Mean: 1; std: 1; median: 1; max: 1, 4, 11, 12, 14; min: 1, 5, 6, 7, 8, 9, 10, 11 Mean: 1, 2, 3, 4, 6, 9, 10; std: 1, 7, 11, 12; median: 3, 4, 7; max: 1, 2, 4, 5; min: 1, 3, 5, 8, 12 Mean: 2, 4, 7; median: 2, 3, 4; max: 1, 4, 5, 6, 7, 10; min: 1, 2, 3, 6, 7, 8 Mean: 1, 4; std: 1; median: 1; max: 1, 4, 5, 6, 7; min: 3, 8, 9
HFCC Mean: 1, 2, 3; std: 1; median: 1, 3, 4, 9; max: 2 Mean: 2, 3; median: 3, 9; max: 3; min: 11 Mean: 1; median: 1, 3; max: 1, 2, 3, 4, 5, 6, 7; min: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11 Mean: 1, 3, 4, 6, 7, 9, 10; std: 2, 3, 11; median: 1, 2, 3, 4, 6, 8; max: 1, 2, 3, 5, 7; min: 8 Mean: 3; median: 1, 3; max: 1, 2, 3, 4, 10; min: 1, 3, 5, 8, 11 Mean: 1, 2; std: 1; median: 1, 2; max: 1, 2; min: 1, 3
PLP Mean: 5, 6, 7, 8; median: 6, 10, 11; std: 3, 4, 5, 6, 7, 9; max: 8; min: 8 Mean: 6 Mean: 5, 6, 7, 8, 11; median: 5, 6, 7; max: 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14 Mean: 4, 5, 9, 13; median: 8, 10, 11, 12, 13; std: 3, 7, 12; max: 6, 12, 13; min: 1, 2, 4, 6, 9, 10, 11, 12 Mean: 1; max: 7 Mean: 5, 13, 14; median: 6, 14; std: 3, 7, 9; max: 7, 8, 9, 10, 13
RPLP Mean: 1, 2, 3, 7; median: 4, 8; std: 2, 5, 6, 13; max: 2, 4, 9; min: 1 Mean: 1; max: 2, 8, 13; min: 8 Mean: 1, 2, 3, 6, 7; median: 1, 2, 3, 6, 7; std: 1; max: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10; min: 2, 3, 6, 7, 8, 9 Mean: 1, 2, 5, 14; median: 1, 2, 3, 5, 6, 7, 9, 14; std: 1, 2, 4, 5, 10, 11, 14; max: 1, 4, 6; min: 1, 2, 3, 11, 13 Mean: 1, 3, 4; median: 2, 5; std: 8; max: 2, 8, 9, 10, 13; min: 1, 2, 3, 6 Mean: 1, 2; median: 2, 3; std: 2; max: 3; min: 6, 8
RASTA PLP Mean: 1, 2, 4, 6, 9; median: 2, 3, 5, 6; std: 1, 2, 3, 9, 10; max: 1; min: 2, 4, 7 std: 4; max: 1, 10; min: 1, 3, 5, 8 Max: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12; std: 1; min: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11 Mean: 4, 9; median: 2, 3, 5, 8; std: 1, 3, 5, 10; max: 6, 9; min: 1, 2, 3, 4, 7 Max: 1, 3, 4, 7; min: 1, 3, 8, 10 std: 1; max: 1, 4, 5, 6; min: 1, 2, 3, 4, 5, 6