Feature selection enhancement and feature space visualization for speech-based emotion recognition.
Sofia KanwalSohail AsgharHazrat AliPublished in: PeerJ Comput. Sci. (2022)
Keyphrases
- emotion recognition
- feature space
- feature selection
- emotional speech
- audio visual
- human computer interaction
- feature set
- sentiment analysis
- facial expressions
- high dimensional
- speaker verification
- dimensionality reduction
- classification accuracy
- feature vectors
- information fusion
- image representation
- emotional state
- feature extraction
- text classification
- data analysis
- machine learning
- low dimensional
- support vector machine
- multi modal
- principal component analysis
- facial images
- image retrieval
- high dimensional data
- hidden markov models
- training set
- knowledge discovery
- data points
- affective states
- user interface
- emotion classification