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Table 2 Confusion matrix for 20 inter-subject

From: Multiclass emotion prediction using heart rate and virtual reality stimuli

Prediction Low arousal/positive valence (↓ +) (%) Low arousal/negative valence (↓ −) (%) High arousal/negative valence (↑ −) (%) High arousal/positive valence (↑ +) (%)
LA/PV (↓ +) 40 49 43 21
LA/NV (↓ −) 16 88 35 7.4
HA/NV (↑ −) 18 35 96 23.5
HA/HV(↑ +) 21 24 25 79