Table 3.

State of the art comparison.

	Validation scheme	Database: Emotional model	Accuracy (%)
Khosrowabadi et al. (2014)	Cross-validation	DEAP: valence/arousal	70.83/71.43
Zheng and Lu (2015)	IT	SEED: [pos., neg., neu.]	86.65
Zheng et al. (2017)	LOO and IS	SEED: [pos., neg., neu.]	60.93 and 79.28
Tripathi et al. (2017)	LOO	DEAP: valence/arousal	66.79/57.58
Song et al. (2018)	IT	SEED: [pos., neg., neu.]	90.4
Liu et al. (2017)	Not specified	Own produced: [neu., non-neu.]/[pos., neg.]/[joy, amusement, tenderness]/ [sad, angry, fear, disgust]	92.26/86.63/86.43/65.09
Proposed method	IT/IS/LOO	SEED: [pos., neg., neu.]	82.27/76.36/77.59