Keyphrases
- facial expression recognition
- ensemble learning
- facial expressions
- human computer interaction
- generalization ability
- ensemble methods
- expression recognition
- face recognition
- feature extraction
- random forest
- feature selection
- facial features
- concept drift
- unlabeled data
- facial images
- multi class
- local binary pattern
- base classifiers
- machine learning
- computer vision
- object oriented
- semi supervised learning
- prior knowledge
- learning algorithm