Principal component analysis 2 Principal-component analysis Article 1 Automobile steering equipment 1 Cluster analysis 1 Control vehicles 1 Deep learning network 1 Deep neural networks 1 Diagnosis 1 Driving cycle 1 Duty cycle 1 Duty-cycle 1 Emission standard 1 Emotion analysis 1 Emotion recognition 1 Feature-level fusion 1 Feature-level fusions 1 Hydraulic fluids 1 Hydraulic pressure 1 Hydraulic steering 1 Image processing 1 K-means clustering 1 K-means clustering techniques 1 K-means technique 1 Learning network 1 Medical applications 1 Multimodal emotion recognition 1 Patient monitoring 1 Processing approach 1 Signal and image processing 1